RCDD Practice Test Latest Questions With Complete Solutions.

RCDD Practice Test Latest Questions With Complete Solutions. C If the input signal power to a communication system is 1 W and the output power is 1 mW, the system attenuation is: A. 3 dB B. 20 dB C. 30 dB D. 40 dB E. 1000 dB B The signal at the input to a balanced twisted pair cable is 10 mW. The cable is 1000 feet long and has an attenuation of 1 dB per 100 feet. This cable is connected to the input of a receiver. The noise level at the input to the receiver is 1 microwatt. What is the signal-to- noise ratio (SNR) (dB) at the receiver input? A. 10 dB B. 30 dB C. 40 dB D. 60 dB E. 100 dB C A SONET OC-1 channel can carry 672 voice signals and has a data rate of 51.84 Mbps. ASONET OC-48 channel can carry 32,256 voice channels. What MINIMUM data rate is required for the OC-48 channel? A. 155 Mbps B. 622 Mbps C. 2.5 Gbps D. 5 Gbps E. 10 Gbps A All of the following are nominal wavelengths for laser light sources EXCEPT: A. 700 nm B. 850 nm C. 1300 nm D. 1310 nm E. 1550 nm A A video camera has a coaxial cable output. The video signal is to be distributed to devices that have balanced twisted pair inputs. The transition between these two different transmission media can be accomplished by using a: A. Balun B. Converter C. Modulator D. Cross connect E. Transceiver C The public telephone system is an example of a __________ system. A. Simplex B. Half-duplex C. Full-duplex D. Purely analog E. Purely digital D Wave division multiplexing (WDM) is most similar to: A. Amplitude modulation B. Frequency modulation C. Time division multiplexing D. Frequency division multiplexing E. Carrier sense multiple access with collision detection (CSMA/CD) C You must place CAT6 cable above a factory floor with automated welding machines and hammer forges. Of the following, what type of shielding would be most effective? A. Multi-layer braid B. Foil and braid C. Solid metallic conduit D. Flex metallic conduit E. Sch. 40 PVC conduit D You must place a cable between 2 equipment locations with separate grounds having a potential difference between them of 2.1 V rms. Which one of the following cables shouldNOT be used? A. Multimode B. Singlemode C. UTP D. STP A Two sinusoidal signals have the same amplitude (A) and the same frequency (f). They differ in phase by 180 degrees. If these two signals are added together, the result is a sinusoidal signal having an amplitude of: A. Zero B. 0.707A and a frequency of f C. A and a frequency of 2f D. 2A and a frequency of f E. 2A and a frequency of 2f A Composite conductors, although not generally recommended, may be used in special circumstances because they provide all of the following advantages EXCEPT: A. Have good digital transmission characteristics B. Lightweight C. Inexpensive D. Easy to produce E. Easily embedded into other materials D Which is an advantage of stranded conductors over solid conductors? A. Less costly B. Simpler terminations C. Better high frequency performance D. More flexible E The conversion of an analog speech signal to a pulse code modulation (PCM) digital signal involves all of the following steps EXCEPT: A. Low pass filtering B. Periodic sampling C. Quantizing D. Companding E. Amplitude modulation B Assume that the optical power transmitted by a 62.5/125 multimode fiber is distributed uniformly across its core. If this fiber is perfectly coupled (i.e., the two fibers are aligned and abutted) to a 50/125 fiber, what is the percent of power that is lost? A. 0 percent B. 36 percent C. 50 percent D. 80 percent E. 100 percent A Which of the following correctly lists the lowest frequency band to the highest frequency band? A. MF, HF, VHF, UHF B. UHF, VHF, HF, MF C. HF, MF, UHF, VHF D. VHF, UHF, MF, HF E. HF, MF, UHF, VHF B Time division multiplexing (TDM) systems are designed to transport ________ between end point systems. A. Only analog signals B. Only digital signals C. A mix of both analog and digital signals D. Both analog and digital signals, but only one type at a time C A reasonable approximation for the signal speed in 100 ohm balanced twisted pair cable is__________, where c is the velocity of light in free space. A. 0.2 c B. 0.4 c C. 0.6 c D. 08 c E. 0.9 c C Which characteristic is an advantage of copper based media over optical fiber cable? A. Weight B. Corrosion resistance C. Ability to handle analog signals D. Susceptibility to EMI E. Very high data rates A Which electrical characteristic is displayed with the correct preferred value? A. Dielectric constant - high value B. Dielectric strength - high value C. Dissipation factor - low value D. Insulation resistance - high value E Optical transmitters are typically one of the following types EXCEPT: A. Light-emitting diode (LED) B. Short wavelength laser compact disc (CD) C. Vertical cavity surface emitting laser (VCEL) D. Laser diode (LD) E. Overfilled launch (OFL) A You are placing Category 6 unshielded twisted-pair (UTP) in cable tray down a hallway past the elevator mechanical room. What action should you take to avoid effects of electromagnetic interference (EMI)? A. Provide a minimum separation of 1194 mm (47 in) B. Provide a minimum separation of 2060 mm (81 in) C. Require the architect to install metallic foil shielding on the mechanical room walls D. Provide RMC/IMC (rigid metallic conduit/intermediate metal conduit) through all areas within 4.6 m (15 ft) of the mechanical room B You have discovered a common mode current on the metallic cable sheaths of your building riser cables. What is the MOST likely cause for you to investigate? A. Lack of cable protection B. Two separate and distinct ground references C. Improper secondary protection D. Improper physical protection of cable E. Improper placement and/or termination of cables B What is the recommended MINIMUM separation of unshielded twisted-pair (UTP) cables from fluorescent light fixtures? A. 77 mm (3 in) B. 30 mm (5.12 in) C. 203 mm (8 in) D. 324 mm (12.75 in) E. 483 mm (19 in) B You are required by architectural design to place UTP cables in the same space as unshielded power lines. How should you proceed with the placement of your cables? A. Require the architect/electrical engineer to place shielding in the space before your UTP is placed. B. You should provide a minimum separation of 610 mm (24 in). C. You should provide a minimum separation of 229 mm (9 in). D. You should provide a minimum of two 101 mm (4 in) RMC. C Which of the following is NOT a form of signal coupling between two (2) circuits? A. Conductive B. Inductive C. Reactive D. Capacitive E. Electromagnetic A A common mode (CM) signal can be converted to a differential mode (DM) signal as a result of a(n): A. Unbalanced circuit B. Grounded circuit C. Poorly timed signal D. Improper dielectric material D The electromagnetic spectrum of visible light lies in the ___________ frequency range of the spectrum. A. 1 GHz B. 100 GHz C. 10 THz D. 1 PHz E. 100 PHz A The potential for ______ occurs when devices or systems share a common electromagnetic environment and their operational frequencies overlap. A. Electromagnetic interference (EMI) B. (EMC) C. Radio frequency interference (RFI) D. Fast transients E. Electrostatic discharge (ESD) B Which of the following is an undesirable electromagnetic effect on a device(s)? A. (EMC) B. Electromagnetic interference (EMI) C. Radio frequency interference (RFI) D. Fast transients E. Electrostatic discharge (ESD) A During a site survey you notice that several CRT displays in the vicinity of the engineering copy center have sporadic visual distortion. What is the MOST likely cause? A. Electromagnetic interference (EMI) B. Radio frequency interference (RFI) C. (EMC) D. Fast transients E. Electromagnetic discharge (ESD) C The ability of a device to withstand electromagnetic disturbances from another device is: A. Electromagnetic interference (EMI) B. Radio Frequency Interference (RFI) C. (EMC) D. Fast transients E. Electrostatic Discharge (ESD) C Which of the following is NOT a source of electromagnetic interference (EMI)? A. Copiers B. Transformers C. Incandescent lights D. Fluorescent lights E. Electrical power supply cable C If looking to specify an optical fiber backbone within a building going 275 m (902 ft) between the equipment room (ER) and the telecommunications room (TR), what type of fiber should be specified to support a 10 GB ethernet application? A. OM1 B. 50 micron multimode C. 50 micron laser optimized multimode D. 62.5 micron multimode B What type of optical fiber is used primarily for outside plant (OSP) applications? A. Tight-buffer B. Loose-tube C. Breakout style D. Duplex zip cord E. Ribbon C What is the insertion loss guideline for a multimode mechanical splice? A. 0.05 dB B. 0.1 dB C. 0.3 dB D. 0.5 dB E. 1.0 dB C What is the International Organization for Standardization/International ElectrotechnicalCommission ISO/IEC class rating for American National StandardsInstitute/Telecommunication Industry Association (ANSI/TIA) Category 5e cable? A. Class B B. Class C C. Class D D. Class E E. Class F A There are three buildings approximately 400 meters apart and the customer wants to use10 Gig Ethernet. What fiber should be specified for this application? A. 8 - 9 micron singlemode B. 50 micron multimode C. 50 micron laser optimized multimode D. 62.5 micron multimode B Which of the following is true about screened twisted pair cable assemblies? A. The drain wire and screen foil must be bonded at one end only. B. The drain wire and screen foil must be bonded at every connection. C. There is no need to bond the screen foil or drain because it is not important. D. The drain wire and screen foil must be separately bonded at opposite ends. B Which of the following is NOT a design consideration for broadband video distribution? A. Amplifier link budgets B. Adhering to the 90 meter (295 feet) rule for horizontal distribution C. Amplifier cascade limitations D. Environmental factors E. Drop length A You are extending 1000 MHz video service from your existing headend to a new equipment room (ER). Your existing incoming video signal is plus (+) 15 dBmV. You have three two- way splitters with a total of minus (-) 15 dB. You are adding 122 m (400 ft) of series 11 (RG11) cable with a minus (-) 18 dB with eight single end F-connectors with a total of minus (-)1.2 dB. From the selections below, what is the MINIMUM gain amplifier required in the headend room? A. Plus (+) 15 dB B. Plus (+) 20 dB C. Plus (+) 25 dB D. Plus (+) 30 dB E. Plus (+) 35 dB A What is the connector of choice for Series 59, Series 6, and Series 11 applications? A. F-Style B. Bayonet Neill-Conncelman (BNC-Style) C. N-Style D. SMA E. Ultra high frequency (UHF) B You must extend a video systems backbone coax cable that was recently installed. Which of the following coaxial cable types would provide the best performance for both analog and digital video? A. Series 6 B. Series 11 C. RG 16 D. RG 59 E. RG 62 C The RJ-45 is now known as the 8P8C style connector, per the TelecommunicationsIndustry Association (TIA) standard. What does the P and C stand for? A. Plug and connector B. Position and connector C. Position and contact D. Plug and contact C What is the testing frequency of a Category 6/Class E cable? A. 100 MHz B. 200 MHz C. 250 MHz D. 500 MHz E. 600 MHz B What type of fiber optic cable is manufactured to protect individual glass strands and is primarily designed for use inside buildings? A. Ribbon B. Tight buffered C. Loose tube D. Air blown C The ability of a conductors insulation to transmit an electric field is called: A. Conductivity B. Transmitability C. Permittivity D. Capacitance E. Reactance D This type of cable is an unbalanced system: A. Unshielded twisted-pair (UTP) B. Shielded twisted-pair (STP) C. Screened twisted-pair (ScTP) D. Coaxial D What is the frequency rating of an International Organization forStandardization/International Electrotechnical Commission (ISO/IEC) Category 7/Class F cable? A. 100 MHz B. 250 MHz C. 500 MHz D. 600 MHz E. 1000 MHz C A furniture cluster with 26 requires a MINIMUM of how many multiuser telecommunications outlet assembly (MUTOA)? A. 1 B. 2 C. 3 D. 4 E. 5 A Which of the following is NOT an example of a perimeter pathway? A. Furniture pathways B. Surface raceways C. Multi channel raceways D. Under carpet cabling E. Raceways integrated within walls A On a project with three small conference rooms, a break room, and twelve private offices, what is the MINIMUM number of telecommunications outlet boxes required? A. 16 B. 24 C. 28 D. 40 E. 46 D Which of the following is NOT a type of connector for optical fiber? A. LC B. ST C. SFF D. S/FTP E. SC A When specifying telecommunications outlet boxes, all of the following should be consideredEXCEPT: A. Outlet box shall be a minimum of 100 mm (4 in) x 100 mm (4 in) x 76 mm (3 in) B. Outlet boxes should be installed near an electric outlet at the same height C. Different outlet boxes have different support requirements D. Floor mounted telecom outlet boxes should be coordinated with furniture to minimize the potential trip hazard E. Outlet boxes must be of adequate size so that minimum cable bend radius requirements are not exceeded B Assuming the total fill capacity of a pathway is 100 cables (all of the same cable type and size), the MAXIMUM number of cables to be installed during the initial installation, without exceeding the fill ratio is: A. 25 B. 40 C. 50 D. 60 B When installing outlet boxes in ten private offices in an area which may prove to be difficult to install future additional telecommunications outlets, the MINIMUM quantity of outlet boxes that should be installed is: A. 10 B. 20 C. 30 D. Based on the type of cabling specified D Important considerations when designing telecommunications distribution within modular furniture include all of the following EXCEPT: A. How the furniture pathways will be connected to horizontal building pathways B. Separation of telecommunications cabling and electrical power C. Diameter of cable to be installed D. Maximum initial fill ratio of 40 percent when derated because of corners D Which of the following is NOT true about consolidation points? A. They are not to be used for direct connections to active equipment. B. They allow horizontal cables to be extended into work area pathways. C. They are to be terminated on separate connectors for each individual user. D. The maximum length of cable from the consolidation point (CP) to the outlet varies by media type. D In a run requiring 15 m (50 ft) of cable between the floor distributor and the consolidation point, the MAXIMUM length of cable allowed between the CP and the telecommunications outlet is: A. 27.4 m (90 ft) B. 36.5 m (120 ft) C. 45.8 m (150 ft) D. 75 m (242 ft) E. 90 m (295 ft) C The MINIMUM separation distance between grounded metal telecommunications pathway and unshielded power lines is: A. 75 mm (3 in) B. 150 mm (6 in) C. 300 mm (12 in) D. 610 mm (24 in) E. 1220 mm (48 in) D A telecommunications outlet/connector may be provided using all listed below EXCEPT: A. Wireless AP connectivity B. Balanced twisted-pair outlets C. Optical fiber connectors D. 4p4c (4 position, 4 contact) connector B An open office design is made up of three furniture clusters and contains a total of nine.How many multiuser telecommunications outlet assemblies (MUTOA) should be in the design? A. 1 B. 3 C. 4 D. 6 E. 9 B The standard floor space coverage area for each building automation system (BAS), is aBAS outlet or device for every_______ of floor space. A. 9.3 m 2 (100 ft 2) B. 23 m 2 (250 ft 2) C. 31 m 2 (330 ft 2) D. 56 m 2 (600 ft 2) E. 84 m 2 (904 ft 2) B The standard floor space coverage area for each building automation system (BAS) is aBAS outlet or device for every ________ of floor space. A. 9.3 sq m (100 sq ft) B. 23 sq m (250 sq ft) C. 31 sq m (330 sq ft) D. 56 sq m (600 sq ft) E. 84 sq m (904 sq ft) C Cables are installed in a ceiling in a straight line. The ceiling run is 60 m (200 ft) in length.What is the MINIMUM number of J-hooks required to support the cables? A. 20 B. 30 C. 40 D. 50 E. 60 B You are designing a horizontal distribution system that will have a zone box located 71.6 m(235 ft) away from the telecommunications room (TR). A 50 mm (2 in) conduit is designed from the TR to a pull box located 36.6 m (120 ft) away from the TR. A 1 1/2 inch conduit is designed from the pull box to the zone box located 35.1 m (115 ft) beyond the pull box.Assuming no conduit bends, and excluding the TR and zone box, what is the total number of pull boxes/pull points required in this horizontal conduit system between the telecommunications room (TR) and zone box? A. 2 B. 3 C. 4 D. 5 C The MINIMUM finished height of access flooring in a general office area is: A. 50 mm (2 in) B. 150 mm (6 in) C. 200 mm (8 in) D. 250 mm (10 in) E. 300 mm (12 in) C Using the "pathway design" for horizontal cable distribution, how many cable runs are placed to serve 15 individual? A. 15 B. 30 C. 45 D. 60 C In the ceiling zone method of distribution, the usable floor area should be divided into zones each measuring: A. 9.3 sq m (100 sq ft) to 23 sq m (250 sq ft) B. 23 sq m (250 sq ft) to 56 sq m (600 sq ft) C. 23 sq m (250 sq ft) to 84 sq m (904 sq ft) D. 56 sq m (600 sq ft) to 84 sq m (904 sq ft) E. 56 sq m (600 sq ft) to 100 sq m (1,100 sq ft) D Perimeter raceway systems should be used primarily for: A. Underfloor pathway B. Apartments or hotels where molding is accessible in the work area C. Warehouses with minimal telecommunications services D. Small floor areas where the majority of telecommunication services will be along the walls E. Equipment rooms where cable tray is cost prohibitive C From a 1000 ft (305 m) roll of optical fiber, how many MAXIMUM length centralized optical fiber cabling runs can be made? A. 1 B. 2 C. 3 D. 4 E. 5 C Which of the following is true when describing slip sleeves or gutters? A. More costly than pull boxes B. Can be used as a splice location C. Provides more space for pulling D. Cannot be used in place of a pull box E. Must be equal in size to the main conduit A Which of the following is NOT an advantage of access floor systems? A. They have a low initial cost B. They are designed for high capacity C. They are aesthetically acceptable for office decor D. Cabling is easily accessible across the entire floor E. Changes can be made quickly with little occupant disruption C An existing ceiling raceway system has 115,000 sq mm (177 sq in) of cross-sectional area available for distribution of cable runs. How many can be served by the existing system? A. 115 B. 160 C. 177 D. 189 E. 195 C You are designing a horizontal pathway system where you will provide 100 mm (4 in) conduit and pull boxes. The building architectural elements will only allow for a single layer of conduits (not stacked). The main horizontal pathway system consists of five 100 mm (4 in) conduits. Large single sheath copper cables are not expected to be placed. Which of the following is the MINIMUM width pull box that is to be provided? A. 600 mm (24 in) B. 900 mm (36 in) C. 1220 mm (48 in) D. 1520 mm (60 in) E. 1830 mm (72 in) D Which type of cable tray is best described as a ventilated bottom with side rails? A. Ventilated channel B. Ladder C. Spline D. Ventilated trough E. Basket tray D Which of the following is NOT considered acceptable in an information technology system(ITS) conduit design and installation? A. Contains no continuous sections longer than 30 m (100 ft) B. Bonded to ground on one or both ends in accordance with national or local code requirements C. Will withstand the environment to which they were exposed D. Uses flexible conduit to access wall outlets E. Avoid routing conduit over or adjacent to heat sources D A conduit run is installed from the ER to a TR. It has two (2) 90 degree bend and a length of 20 m (65 ft). What will be the MINIMUM test rating of the pull cord left in the conduit? A. 20 kg (44 lb) B. 40 kg (88 lb) C. 60 kg (132 lb) D. 90 kg (200 lb) E. 100 kg (220 lb) B When placing an optical fiber cable in the horizontal optical fiber cabling subsystem, what is the MAXIMUM number of splices that can be used? A. 1 B. 2 C. 3 D. 4 E. 5 A You have been asked to project manage a fiber cable backbone installation. In the course of the installation, you notice the fiber cable with a 25 mm (1 in) outside diameter is being installed into a small TR, and the cable is being installed into a tight corner. Based on your knowledge of minimum bend radius requirements for fiber cable, you must ensure that the MINIMUM cable bend radius of _______________ is provided when the cable installation is completed. A. 254 mm (10 in) B. 305 mm (12 in) C. 381 mm (15 in) D. 457 mm (18 in) E. 610 mm (24 in) D Multimode optical fiber is generally used for campus or building applications due to the ability to use cost effective: A. Connectors B. Cable C. Installation methods D. Transceivers E. Designs B When designing a backbone distribution system, you will need to include a telecommunications enclosure (TE). A TE can be defined as a: A. Splice point for copper cabling only B. Point where the backbone cabling interfaces to the horizontal cabling and may be utilized in place of a traditional Telecommunications Room (TR) C. Location for housing building cross-connect cabling only D. Location to house the splice transitioning from outdoor to indoor cabling only E. Facility to store slack copper and fiber cables A When designing a campus distribution system involving small buildings with only one horizontal cross-connect (HC) [Floor distributor (FD)] per building, you can eliminate the need for a(n): A. Intermediate cross-connect (IC) Building distributor (BD) B. Main cross-connect (MC) Campus distributor (CD) C. Horizontal cross-connect (HC) Floor distributor (FD) D. Entrance facility (EF) E. Latching connector (LC) C One advantage of using preconnectorized jumpers and cables is: A. They are less costly than field connectorized connectors B. The cables are more rugged and can handle higher pull tensions C. They come with factory certified quality of terminations D. They require additional engineering time thereby providing a higher degree of reliability E. The technician does not need to be concerned with the water blocking components of the cable E The maximum vertical rise is the distance over which the cable is vertically self-supporting.This distance is a function of the weight of the cable and the: A. Sheath fire rating B. Number of strands of fiber in the cable C. Type of hangers used in the riser D. Type of fire stop used in the riser E. Cable maximum tensile rating E You are given a choice of methods of routing backbone cabling vertically through a building. The one option that you do NOT want to use is: A. Open shafts B. Metallic raceways C. Slots D. Sleeves E. Elevator shafts E When designing a fiber backbone using cable with an armored sheath, a major consideration that you must address is: A. Type of metal used in the sheath B. Strength of the armored sheath C. Amount of aluminum contained in the armored sheath D. Amount of steel in the sheath as rust is an issue E. Bonding and grounding of the armored sheath D The RECOMMENDED balanced twisted-pair cable for building backbone cabling consists of ________ round solid copper conductors with a nominal characteristic of 100 ohm. A. 20-24 AWG B. 22-26 AWG C. 23-24 AWG D. 24-22 AWG E. 26-20 AWG E When designing a backbone distribution system, you are asked to include a combination of media types. Your choice of media types include: A. Copper and fiber only B. Fiber and wireless only C. Fiber and coaxial cable only D. Wireless and coaxial cable only E. Any combination of copper, fiber, and wireless A Rack mounted hardware is installed in two standard sized racks or cabinets. Those sizes are: A. 482 mm (19 in) and 584 mm (23 in) B. 482 mm (19 in) and 762 mm (30 in) C. 610 mm (24 in) and 762 mm (30 in) D. 762 mm (30 in) and 914 mm (36 in) E. 482 mm (19 in) and 1020 mm (40 in) B A backbone star topology shall have no more than______ level(s) of cross-connections. A. One B. Two C. Three D. Four E. Five D Which of the following statements best describes what a backbone distribution system typically provides? A. Cabling from the HC to the WA B. Pathway from the HC to the WA C. Conduit in a building riser D. Building connections between floors in a multistory building E. Copper cabling installed in a large building B One of the advantages of using optical fiber in the backbone installation is: A. More cost effective B. Immunity to EMI C. Safer to install D. Requires less skill to install E. Has better manufacturer support E A campus backbone design linking two buildings requires that you install a high-fiber-count cable very quickly, using the conduit system provided. Cost is not so much an issue as urgency is to meet a service demand. Your first choice of fiber cable installation is to use: A. Multiple sheathed cables with field connectorization B. Multiple sheathed cables using pigtail connectorization C. Single high fiber count sheathed cable with field connectorization D. Single sheathed high-fiber-count cable with pigtail connectorization E. Single sheathed cable equipped with preconnectorized assemblies C When reviewing a backbone distribution system within a building provided to you for standards compliance, you see that there are several cables with bridge taps built in.Which one of the following options is correct? A. Ensure all cables meet maximum lengths to ensure standards compliance B. Ensure all cables exceed minimum cable lengths to avoid NEXT(near-end crosstalk) C. Provide recommendations to remove all bridge taps D. Provide recommendations to remove one bridge tap per cable E. Do nothing as the design will pass all design parameters B In reviewing your client's network needs for today and 5 years into the future, you note their current specs call for a 1Gb/s network within a campus environment, with little or no possibility of any increased bandwidth demands until they move to their planned future site. The building is not large, and the cable lengths will not exceed 550 m (1804 ft). Your recommendation for the fiber to be installed in the backbone is: A. OM1 fiber B. OM2 fiber C. OM3 fiber D. OM1, OM2, or OM3 will work E. OS1 equipped with attenuators C You have been asked to design a backbone cable connecting two large campus buildings.Your pathways will include using conduits, maintenance holes, and one section of 100 m(328 ft) of direct buried optical fiber cable. Your choice of fiber optic cable type recommendation is a: A. Distribution cable B. Loose tube cable C. Loose tube cable containing a water blocking compound D. Distribution cable with an armored coating E. Distribution cable with a water blocking compound D In the customer's environment, an ITS designer should avoid the need for optical fiber field splicing by: A. Installing oversized inner duct B. Using oversized cable trays C. Using pre-connectorized cables D. Installing a continuous length of cable E. Using multiple pull boxes C Optical fiber all-dielectric cables have an additional advantage over ones containing a steel strength member. That advantage is: A. More resistant to rodent damage B. More difficult to damage C. More resistant to lightning and electrical conduction D. Cables are made of a tougher outer PVC jacket B An installation crew is pulling an optical fiber cable into a riser. The cable has an outside diameter of 25 mm (1 in). As the cable is being pulled off the reel and through a pulley into the riser, you must verify that the minimum bend radius for the cable being pulled is observed. The pulley must be sized at a MINIMUM of: A. 254 mm (10 in) B. 381 mm (15 in) C. 508 mm (20 in) D. 635 mm (25 in) E. 762 mm (30 in) A When installing a heavy backbone cabling vertically, recommended methods of securing the cable include all of the following EXCEPT: A. Tie wraps B. Brackets C. Steel or plastic straps D. Collar or mesh basket grips E. Steel cable ties B You are reviewing a building backbone design with a vertically aligned telecommunications room (TR). In the spec you note in a footnote with details that the slots at one end of the telecommunications room (TR) must be flush with the floor and the sleeves provide at the end of the telecommunications room (TR) must also be flush. In your meeting with the electrical engineering firm that has provided the spec, you make the comment that according to best practices, the MINIMUM that slots and sleeves must extend above the finished floor are: A. 25 mm (1 in) for slots and 51 mm (2 in) B. 25 mm (1 in) for slots and 25 mm (1 in) C. 51 mm (2 in) for slots and 25 mm (1 in) D. 51 mm (2 in) for slots and 51 mm (2 in) E. 64 mm (2 1/2 in) for slots and 64 mm (2 1/2 in) D The decision regarding the number of optical fibers to install (fiber strand count) in a backbone depends largely on all of the following EXCEPT: A. Level of multiplexing B. Intended end-user applications C. Physical topology of the cabling system D. Distance between telecommunications room (TR) E. Cabling system configuration A This diagram illustrates a ______________campus backbone design. A. Hierarchical star B. Ring topology C. Bus topology D. Inverted star E. Collapsed ring E When designing a connection to an outlying building you decide to choose a physical ring.Your primary reason for considering a physical ring is: A. You have easy access to an existing pathway B. The design is quick and easy to install C. The campus suits this design D. The design is cost effective E. The physical ring provides a redundant cable path for disaster recovery C The MINIMUM recommended lighting requirement in a telecommunications room (TR) at the point of cable terminations is: A. 150 lux B. 300 lux C. 500 lux D. 750 lux E. 1000 lux C In addition to voice and data services, an equipment room (ER) can be designed to include all of the following EXCEPT: A. CATV and CCTV facilities B. Life safety facilities C. Building electrical service monitoring and controls D. Audio and paging equipment E. General premise monitoring and security systems D If the usable floor space is unknown, then deduct ________ percent of the total area available to estimate the usable area. A. Five B. Ten C. Fifteen D. Twenty E. Twenty five D You are placing two 423 mm (19 in) relay racks with a 152 mm (6 in) vertical management panel on each end and a 12 in vertical cable management panel between the racks. The rack lineup begins against a wall in the room. What is the MINIMUM room size required? A. 1.83 m (6 ft) x 2.4 m (8 ft) B. 2.1 m (7 ft) x 2.4 m (8 ft) C. 2.4 m (8 ft) x 2.4 m (8 ft) D. 2.4 m (8 ft) x 3.0 m (10 ft) E. 3.0 m (10 ft) x 3.0 m (10 ft) C A building has a floor space of 16.7 m (55 ft) by 45 m (150 ft) with a common core measuring 9.17 m (30 ft) by 13.7 m (45 ft). How many individual can be provided in the usable floor space? A. 50 B. 58 C. 69 D. 77 E. 85 A You have determined that the equipment room (ER) you are designing will be the minimum size of 15 sq m (160 sq ft) and is servicing 80 but architectural changes will add 175 , which will require you to add a horizontal cross-connect (HC). What size should the equipment room (ER) be? A. 18 sq m (193 sq ft) B. 23 sq m (250 sq ft) C. 31 sq m (330 sq ft) D. 37 sq m (400 sq ft) E. 47 sq m (500 sq ft) A You are recommending to an architect the location within a telecommunications room for the placement of floor sleeves connecting to the telecommunications room directly below.Where should the sleeves be placed within the room? A. On the left side of the room at the base of the wall B. On the right side of the room at the base of the wall C. Centered along the base of the wall D. Near the entrance to the room E. Conduit should be extended from the sleeves to 2.4 m (8 ft) AFF A At a minimum, convenience receptacles in an ER or TR are to be located ________ AFF. A. 150 mm (6 in) B. 300 mm (12 in) C. 375 mm (15 in) D. 450 mm (18 in) A The recommended MINIMUM number of conduits connecting two located on the same floor is: A. One B You have been selected to do the telecommunications design on a new, single story building. The architect requires the size and location of the telecommunications rooms so their building design can proceed. From the items listed below (all of which are required for the design), which one is the logical starting point in order to provide the architect with a size and location for the room? A. Determine where the entrance facility will be B. Determine the number of , their locations, and telecommunications services needed C. Determine the power, HVAC, electrical, and security requirements for the room D. Determine future growth and other requirements E. Determine the types of equipment to be installed in the room C "A single outlet utilizing a dedicated phase, neutral, and ground conductor" is the definition for which of the following? A. Feeder circuit B. Ground fault receptacle C. Dedicated branch circuit D. "Daisy-chained" series of receptacles C In a telecommunications room (TR), the MINIMUM bottom edge height recommendation for mounting plywood on the wall is ________ above AFF. A. 51 mm (2 in) B. 152 mm (6 in) C. 200 mm (8 in) D. 305 mm (12 in) E. 410 mm (16 in) B The recommended ratio of patch panels to horizontal cable management panels is________ RU of patch panel to ________ rack unit (RU) of horizontal cable management panel. A. One C On a survey of one of your client's buildings, you discover that one of the TRs, housing a considerable quantity of switching equipment, is at 25 degrees C (77 degrees F) with a relative humidity of 59 percent. This is considered to be: A. Within the normal range of temperature and humidity B. High temperature and normal humidity C. Normal temperature and high humidity D. High temperature and high humidity C When allocating termination space for CAT 6 and optical fiber cables, it is recommended that additional space of up to ________ percent be considered for the routing of the cables and patch cords. A. Five B. Ten C. Twenty D. Thirty A You are starting work on a new high school. The architect has provided you with a telecommunications room located between the kitchen cold store room and the automotive and welding shops. What should you do? A. Work with the architect to find another location B. Insist that the welding shop be placed as far from the telecommunications space as possible C. File a complaint with the client D. Provide shielded cable tray in the telecommunications room and in the outer halls E. Request that shielding be placed around the compressors and the arc welding units E You are working on the design of a new, large ER/TR that will contain many racks and data cabinets including a large UPS system. Your recommendation to the architect for room access from inside the building is: A. Two 0.9 m (3 ft) solid doors B. One 1.5 m (5 ft) metallic roll top door C. One 1.2 m (4 ft) solid core, steel sheath door D. One 1.83 m (6 ft) solid core dual direction sliding door with removable sides E. One double door with a removable center post B Which of the following types of conduit uses set screw couplings and connectors? A. RMC B. EMT C. IMC D. Schedule 80 PVC E A building can have multiple equipment rooms (ERs) for all of the following reasonsEXCEPT: A. To provide redundancy B. For separate tenants C. To house different types of equipment D. To serve multiple Access point (APs) and/or Service provider (SPs) E. To accommodate office and work space A In a telecommunication room (TR), the ________ is the facility used to make cross connections from the backbone cable to the horizontal cable. A. Horizontal cross-connect (HC) B. Entrance facility (EF) C. Intermediate cross-connect (IC) D. Main cross-connect (MC) C What is the MINIMUM ceiling height of a telecommunications room? A. 2.1 m (7.0 ft) B. 2.3 m (7.5 ft) C. 2.4 m (8.0 ft) D. 2.6 m (8.5 ft) E. 2.7 m (9.0 ft) A Firestop ________, in conjunction with steel wedging plates, go in a steel cable tray. A. Bag B. Block C. Intumescent sheet D. Silicone foams B Which of the following is a nonmechanical firestop system? A. Cable transit system B. Firestop blocks C. Fire rated pathway device D. Factory fabricated sleeve system B What type of material does NOT support combustion even under accelerated conditions? A. Fire break B. Fire proof C. Fire resistant D. Fire retardant C Most types of firestop putty have ________ properties. A. Water based B. Cementitious C. Intumescent D. Silicone based C A ________ eliminates the need to remove or install materials. A. Cast-in-place device B. Cable transit system C. Fire-rated pathway device D. Factory fabricated sleeve system C You are designing the cabling infrastructure for a lab office building that will frequently change tenants. The owner will be responsible for all of the infrastructure that feeds each floor to include the telecommunication rooms. Which firestop method will best suit the owners needs? A. Cable transit system B. Factory fabricated sleeve system C. Firestop pillow system D. Silicone foam system A Cementitious materials are ________ based materials. A. Dry powder B. Latex C. Solvent D. Sand D A fire ________ is a contained area that is completely enclosed by fire resistant walls, floors, and ceilings. A. Rated system B. Stop system C. Wall D. Zone A You are designing a cabling system for a chemical plant. What type of device is needed to prevent the spread of fire along the cable other than the barrier penetrations? A. Fire break B. Fire shield C. Fire stop D. Fire wall D You are designing a firestop system for a boiler room that will have conduits coming from the service provider maintenance hole into the building. Which test rating will address the firestops ability to resist breakdown from water damage? A. F rating B. L rating C. T rating D. W rating B You are designing a firestop system for a hospital with several floors that have isolation rooms. Air leakage control is important to ensure rooms are sealed and restrict the spread of disease. Which firestop test rating should you use to ensure air leakage compliance? A. F rating B. L rating C. T rating D. W rating B The F rating for a framed wall/stud wall is ________ hour(s). A. One B. Two C. Three D. Four B A(n) ________ system is considered a mechanical firestop. A. Cementitious B. Cable transit C. Firestop block D. Intumescent sheet D Surge currents due to lightning and other sources MUST be ________ before they penetrate the infrastructure. A. Shorted B. Maximized C. Terminated D. Equalized D The impedance of the equipment grounding conductor can only be accurately measured with an instrument known as a(n): A. Volt ohm meter B. Power distribution unit C. Exothermic weld connection D. Ground impedance tester E. Amp calculator C Often associated with raised flooring, a(n) ________ may consist of copper straps taped to the concrete floor, or it may be the floor itself with the stringers that support the tiles acting as the bonding conductor across the gradient of the floor. A. Grounding electrode conductor (GEC) B. Electrical ground bar (EGB) C. Signal reference grid (SRG) D. Telecommunications bonding backbone (TBB) E. Drain wire D You are designing a telecommunications grounding system for a telecommunications room(TR). The TMGB is located 15 m (50 ft) from the telecommunications rack. What is theMINIMUM AWG of the ground conductor required? A. Two B. Three C. Four D. Six E. Eight B The MINIMUM dimensions of the telecommunications main grounding busbar is ________ and variable in length. A. 4 mm (0.16 in) x 80 mm (3.15 in) B. 6.3 mm (0.25 in) x 100 mm (4 in) C. 8 mm (0.31 in) x 110 mm (4.33 in) D. 10.5 mm (0.41 in) x 140 mm (5.51 in) E. 12.75 mm (0.50 in) x 175 mm (6.89 in) D Which of the following is NOT provided by the ac grounding electrode system? A. Zero volt reference for AC power B. A path for dissipating electrical current C. A path for dissipating electrostatic discharge D. Adequate electrical protection for people and equipment A The recommended MAXIMUM value for the bonding resistance between the nearest available grounding electrode and the busbar in an entrance facility (EF) is ________ ohms. A. 0.1 B. 0.5 C. 1 D. 2 E. 5 B Based on documentation contained within the Insulated Cable Engineers Association(ICEA) standard P32-382, Short Circuit Characteristics of Insulated Cable, a copper conductor is capable of safely carrying one ampere for ________ second(s) for every 42.25 circular mils. A. One B. Five C. Twelve D. Twenty E. Thirty D Electrical power cables are usually routed above aerial cable in order to: A. Provide aesthetics, as the power cables are bigger than the aerial cables B. Be a strength member in case a tree or something heavy falls on the lines C. Negate the need for protectors D. Intercept and divert direct power strikes E An isolated ground receptacle may be identified by: A. Beige coloring with an orange triangle on the face B. The letters IG C. Continuous orange coloring D. Its proximity to the PDU E. Either A or C C Which of the following covers lightning protection systems and defines as exposed anything above ground and outside the zone of protection? A. NTSB-12 B. IEEE 1100 C. NFPA 780 D. NEC 47 E. ANSI J/STD-607-A B As a guide, the recommended maximum AC current value on any bonding conductor should be less than ________ amperes. A. 0.50 B. 1 C. 5 D. 10 E. 20 C Certain systems must exist relative to bonding and grounding at every site. Which of the following is NOT one such system? A. AC grounding electrode system (e.g., in some countries it may also be known as the earthing system) B. Telecommunications bonding infrastructure C. Lightning protection system D. Equipment grounding system (e.g., in some countries it may also be known as the equipment bonding system) B Which of the following electrical devices is used to convert AC to DC? A. Inverter B. Rectifier C. Transformer D. Line filter C You have been asked to provide a UPS that is always serving the load from its batteries and the electrical supply is used only to recharge the batteries. Which one of the following types of UPS will meet this requirement? A. Off line, standby B. Line interactive C. Online double conversion D. Rotary E. Flywheel C A rapid increase in voltage with a duration of half a cycle best describes a(n): A. Swell B. Overvoltage C. Transient D. Frequency variation C An isolated ground is used to: A. Reduce transients B. Prevent interruptions C. Reduce EMI/RFI D. Reduce swells and sags C Multiples of the basic frequency of an electrical waveform are called: A. Transients B. Noise inductions C. Harmonics D. Random frequency variations D The formula for calculating BTUs from electrical power is: A. W x 0.707 B. W x 1.732 C. W x 3.1416 D. W x 3.413 D All of the following are used to control static discharge EXCEPT: A. Ion generator B. Discharge plates and bracelets C. Maintenance of humidity of between 30 and 55 percent D. Installation of isolated grounds B The average power consumption in a telecommunications room (TR) is 2260 watts per hour. What is the heat dissipation in BTUs? A. 7096 BTU B. 7713 BTU C. 8104 BTU D. 8511 BTU B Using Ohms law, a circuit of 120 volts and a resistance of 15 ohms will have a current of________ amps. A. 5 B. 8 C. 10 D. 12 E. 15 A DC loads are generally expressed in: A. Amperes B. Volts C. Voltage amperes (VA) D. Watts B You are designing a large equipment room (ER) that will house many servers, switches, backup storage drives, and other communications equipment including peripheral devices.To prevent problems from harmonic currents that can be created by switching power supplies, you should arrange for: A. Isolated grounding B. Oversized neutral and grounding conductors C. Surge protection on power supply D. A 3-phase feeder supply separate from the building supply E. Power filtering at the service panel C You have been asked what the estimated power cost will be per month (30 days) for the new equipment room you are designing. The power load you have calculated to be an average of 1850 watts per hour. What is the monthly cost assuming the cost of electricity is7.5 cents (U.S.) per kilowatt hour? A. $44.40 B. $55.50 C. $99.90 D. $122.80 E. $140.10 C If you have a circuit with 120 volts, 12 amps, and 10 ohms, it has a peak power of________ watts. A. 1018 B. 1200 C. 1440 D. 2037 B You have been asked to provide a N+1 level of power redundancy in the new equipment room (ER) being designed with a Tier-II power supply. What should you do? A. Provide a UPS that serves all of the equipment in the facility. B. Provide two separate UPS units with an automatic power failure transfer to serve entire facility. C. Provide two separate UPS units with each one serving half the equipment in the facility. D. Provide two separate UPS systems with one serving the entire facility and the second on automatic power failure transfer to serve critical circuits only. B Which of the following refers to the increase in the nominal voltage for a duration of 3600 cycles? A. Swell B. Overvoltage C. Transient D. Sag A A large telecommunications facility, by most codes, must be designed with an EPO switch located at: A. The facility entrance or exit B. The main power panel C. Between the main power panel and the transformer D. Near each bank of equipment in the telecommunications space D For the telecommunications industry, the nominal operating voltage is ________ volts DC. A. + 24 B. - 24 C. + 48 D. - 48 C Phase difference is the relationship in time between two waveforms of the same: A. Power B. Voltage C. Frequency D. Current A In an industry where a high level of humidity is measured, which type of label should be used? A. Moisture-induced decay and degradation resistant B. Ultraviolet (UV) light protected C. Heat and cold resistant D. Smudge resistant E. Chemical resistant A Color codes for cross-connections fields have been used for many years. Which color is used to identify horizontal cable? A. Blue B. Green C. Purple D. Orange E. Brown A Color codes for cross-connection fields have been used for many years. Which color is used to identify network connections? A. Green B. Orange C. Purple D. Yellow E. Brown A If a telecommunications grounding busbar is installed in the telecommunications room (TR) with the identifier of 310, located on the third floor, then the telecommunications grounding busbar should be labeled as: A. TGB-310 B. TGB C. TGB in TR 310 D. TGB in room 310 E. No need to identify as there is only one per TR A Which class of the system applies when the premise only has a single equipment room(ER), and it is the only telecommunications space administered? A. Class 1 B. Class 2 C. Class 3 D. Class 4 A Assume the following:- An equipment room (ER) consists of 16 racks arranged in 4 equal rows- The first 4 racks are numbered R1-1 though R1-4- The second 4 racks are numbered R2-1 through R2-4- A new equipment shelf with 12 slots is to be installed in the bottom of the third rack in the second row- Each slot has 2 portsWhat would be the identifier of the two ports on the eighth slot of the new equipment shelf? A. R2-3-1-8-1 and R2-3-1-8-2 B. R3-2-1-8-1 and R3-2-1-8-2 C. R2-3-1-12-1 and R2-3-1-12-2 D. R3-2-1-12-1 and R3-2-1-12-2 E. R2-3-12-8-1 and R2-3-12-8-2 B Class ________ administration provides for the telecommunications infrastructure administration needs of a single building, or of a tenant served by a single or multiple. It also includes administration for backbone cabling, systems, and. A. 1 B. 2 C. 3 D. 4 A Which class of the system was created to secure a single equipment room (ER)? A. Class 1 B. Class 2 C. Class 3 D. Class 4 A Color codes for cross-connections fields have been used for many years. Which color is used to identify campus backbone? A. Brown B. Blue C. Green D. Purple E. White A Which one of the following is part of the security metric to consider in selecting the appropriate labels for an administrative system? A. Tamper resistance B. Smudge resistance C. Temperature rating D. Adhesive type E. Moisture content A When labeling pathways, which one of the following guidelines should be met? A. Labeling should be affixed at the ends of each pathway. B. Pathways should not be labeled at regular intervals to avoid labeling removal during cable installation. C. Avoid marking conduits from the main equipment room (ER). D. Pathways do not need to have unique identifiers as they are only supporting cables. E. Only pathways containing fire/life/safety systems and electrical system should be labeled to prevent interference with other applications. C What is the worst case acceptance value for attenuation when testing 2000 m (6562 ft) of50/125 multimode fiber at a wavelength of 1300 nm when the fiber has 2 connector pairs and 3 splices? A. 3.4 dB B. 4.65 dB C. 5.4 dB D. 6.4 dB E. 9.4 dB C The diagram below is a typical configuration for: A. Work area 3-connector permanent link B. Work area 3-connector channel C. Data center 4-connector channel D. Data center 4-connector permanent link E. Work area 4-connector permanent link B You are preparing to test newly installed open office cabling. Within the open office cabling, there are multiple consolidation points (CP) that were installed while waiting for furniture. How do you proceed with permanent link testing? A. Test to each CP, then test from CP to workstation. B. Wait for open office cabling to be completed, then test to each workstation outlet, including the CP. C. Test that the CP is within 90 meters, then test again to the workstation outlet. D. Perform permanent link tests to each CP, then continuity tests from CP to each workstation outlet. E. Test to each workstation outlet, treating each outlet as a channel. D Premises optical fiber links should be tested: A. In one direction at one corresponding wavelength B. In one direction at both corresponding wavelengths C. Bidirectionally at one corresponding wavelength D. Bidirectionally at both corresponding wavelengths D Where backbone cabling exceeds cabling lengths for the same performance or design (for product used in horizontal cabling), there are three fundamental tests which should be considered when testing. They are: A. Insertion loss (attenuation), return loss, and wiremap/strand identification B. Insertion loss (attenuation), return loss, and continuity C. Insertion loss (attenuation), return loss, and length D. Insertion loss (attenuation), continuity, and wiremap/strand identification E. Continuity, wiremap/strand identification, and propagation delay/delay skew B When balanced twisted-pair copper cabling, return loss is a measurement of the: A. Worst case difference in magnitude between the expected insertion loss and the actual measured insertion loss B. Reflection of signal power resulting from the insertion of a device in a transmission line (in dB) C. Signal coupling between any two pairs along the entire length of the cabling D. Loss in signal resulting from the insertion of a component, of link, or channel, between a transmitter and a receiver E. Time required for a signal to travel from one end of the transmission path to the other end D You have been asked to test and troubleshoot an installed base of cabling that is believed to be causing network problems. You are finding that there are high levels of return loss upon initial testing. What testing will best determine the reasons for these failures? A. Power meter B. Continuity testing C. Level II testing D. Time domain reflectometer (TDR) E Which of the following does NOT describe one of the four main types of specifications? A. Based on an established standard B. Focused on exact properties and installation methods C. Calling out brand names and models D. Focusing on the desired results E. Listing maximum acceptable performance A A scope of work should contain all of the following EXCEPT: A. Request for purchase B. Project schedule C. Project objective D. Assumptions E. Customer needs A All of the following are considered market or regional conditions that can impact construction costs EXCEPT: A. Displacement and relocation B. Construction time frame C. Other large projects in the area D. Seasonal effects on construction costs B Which is NOT true about conformance quality? A. It focuses on physical quality. B. It involves evaluating customer satisfaction. C. It requires work force training. D. It includes inspections of work. E. It follows the principle of plan, do, check, and act. A At the end of the third week of a project, the actual cost of work performed is $7000 USd and the budgeted cost of work performed is $8000 USd. Which of the following is true? A. The project is under budget. B. The project is budget incorrect. C. The project has been back-end loaded. D. The project is over budget. A What type of estimate is based on the cost of performing similar work in the past, adjusted for current job conditions? A. Analogous B. Parametric C. Engineering D. Ledger E. PERT A The figure below represents what type of chart? A. Milestone B. PERT C. Gantt D. Calendar E. Status If a work breakdown structure (WBS) shows the tasks below, what is C, the successor task? A) Install OSP pathways - B) Install fiber - C) ________. A. Hold inspection B. Create budget C. Conduct safety meeting D. Perform site survey A At the end of the second week of a project, the earned value (EV) of work is $8000 USd and the planned value (PV) of work is $7000 USd. What is true about the project? A. The project is ahead of schedule. B. The project is over budget. C. The project is behind schedule. D. The project is under budget. A Which area of project management covers the blending of various subteams into a project organization with a cohesive plan? A. Integration management B. Human resources management C. Risk management D. Communications management A A work breakdown structure is: A. Influenced by market conditions at the time of the project execution B. A set of accounting codes C. Reflective of project organizational structure D. Easily standardized E. A replacement for a Gantt chart C What is the PERT estimate of time for cable placement on a given job?- Optimistic time is 100 hours- Most likely time is 125 hours- Pessimistic time is 210 hours A. 100 hours B. 125 hours C. 135 hours D. 155 hours E. 175 hours D Which is NOT a type of contract? A. Contractor submits a fixed price for the SOW B. Contractor is reimbursed for actual costs plus a fee C. Unit price is used because the SOW cannot be determined prior to bid D. Mediation panel assigns a fair price based on work completed A Select the appropriate task to complete section 2.2 of the work breakdown structure (WBS) below:2 Technician2.1 Install cabling2.2 __________2.3 Activate wireless A. Install access point B. Clean work area C. Install pathway for cabling D. Confirm wireless coverage A When developing a safety plan, consider all of the following EXCEPT: A. Safety may be excluded from scope where an information technology system (ITS) designer is responsible for the design only B. Areas that should be addressed by the safety plan include emergency numbers and work area protection C. The safety coordinator should hold a safety meeting prior to the start of the project D. The contractor should contact the customer safety coordinator to evaluate site specific emergency procedures B Select the appropriate task to complete the section 2.2 of the work breakdown structure below:2. Technician2.1 Install rack2.2 _________2.3 Place fiber2.4 Terminate fiber2.5 Test fiber A. Prepare as-built drawings B. Install connector housing C. Clean/polish connectors D. Specify fiber A All of the following are true about the post construction phase EXCEPT: A. The owner is responsible to update the record copy drawings to reflect "as-built" documents. B. The contractors are resolving issues identified on the punch lists. C. The architect is involved in final acceptance and contract closeout activities. D. The construction manager is coordinating removal of construction equipment and job trailers. C What is the PERT estimate (in hours) for project design where:- Optimistic time is 40 hours- Most likely time is 50 hours- Pessimistic time is 60 hours A. 40 hours B. 45 hours C. 50 hours D. 55 hours E. 60 hours A A building has six floors plus a basement. Each floor is 10,000 square feet and has approximately 50 CATV outlets respectively. There is a single hardline trunk cable installed from the basement headend passing through the telecommunications room (TR) on each floor. What is usually the MOST cost effective coaxial cable design to implement on the horizontal distribution from the telecommunications room (TR)? A. Trunk and tap B. Home run C. Video over balanced twisted-pair D. Video over optical fiber A The headend has several audio-video playback devices within it. What piece of equipment is required to assign their output signals to specific RF carriers on the CATV system? A. Modulator B. Combiner C. Splitter D. Multiport tap A You are designing a building with a combination of Class A commercial office spaces and residences. The design program requires having unlimited cable channels available at all outlet locations. What distribution system topology will NOT provide adequate channel distribution to each location? A. Video over balanced twisted-pair B. Trunk and tap C. Home run D. Video over optical fiber B A building has six floors plus a basement. Each floor is 10,000 square feet and has approximately 50 CATV outlets respectively. There is a single hardline trunk cable installed from the basement headend passing through a directional coupler in each floor's telecommunications room (TR). Which leg of the coupler will have the LEAST signal loss? A. Tap B. Through C. Splitter D. Port C The headend has several modulators assigning frequencies for distribution to the CATV network. What distribution device should you use immediately at the headend to distribute the modulator's output signals to CATV system? A. Splitter B. Directional coupler C. Combiner D. Multiport tap B What is the appropriate impedance of coaxial cable for use with broadband distribution? A. 50 B. 75 C. 100 D. 150 B A building has six floors plus a basement. Each floor is 929 sq m (10,000 sq ft) and has approximately 50 CATV outlets respectively. There is a single hardline trunk cable installed from the basement headend passing through the telecommunications room (TR) on each floor. In order to maintain the LEAST signal loss passing through each telecommunications room (TR) to the next telecommunications room (TR), what device should you specify for use within each telecommunications room (TR)? A. Splitter B. Directional coupler C. Multiport tap D. Combiner A Active video converters are required for what type of CATV distribution system? A. Video over balanced twisted-pair B. Trunk and tap C. Home run D. Video over optical fiber A A building has a series of CATV outlets each with cables installed back to a telecommunications room (TR), and each telecommunications room (TR) is connected to the headend. What is this type of topology called? A. Star B. Mesh C. Bus D. Series D Which of the following is NOT an element of a cable system? A. Headend B. Distribution system C. Subscriber drop D. Television A The following diagram represents what type of CATV distribution system? A. Home run B. Trunk and tap C. Video over balanced twisted-pair D. Video over optical fiber B An active video converter is used in what type of CATV cable distribution system? A. Trunk and tap B. Video over balance twisted-pair C. Video over optical fiber D. Home run A The following diagram indicates what type of CATV distribution system? A. Trunk and tap B. Video over balanced twisted-pair C. Video over optical fiber D. Home run A What is the recommended distance between ceiling mounted speakers in a hallway with heavy traffic? A. 2.4 m (8 ft) B. 3.7 m (12 ft) C. 4.9 m (16 ft) D. 6 m (20 ft) C A space has all hard surfaces including architecture and furnishings. The audio programming produced from the distributed sound system has become unintelligible.Which of the following will NOT mitigate the problem? A. Add tapestries to the walls. B. Provide additional speakers at lower output. C. Increase the volume to the existing speakers. D. Reduce the distance of the existing speakers to the listener. B What are the three typical voltages used in centrally amplified paging systems? A. 24, 48, and 90 B. 25, 70, and 100 C. 25, 90, and 120 D. 48, 90, and 120 C Using the sound pressure level (SPL) method of approximating distance and power, calculate the power required to produce 89 dB at 4 m (13.1 ft) with a loud speaker that is rated at a SPL of 95 dB. What input power level (in watts) is required to appropriately power the speaker? A. 1 watt B. 2 watts C. 4 watts D. 8 watts C You are designing a paging system for a 588 sq m (6325 sq ft) open office space. Due to architectural features of the ceiling, wall mounted speakers must be used. Following the general rule about wall mounted speaker placement, how many speakers should be installed? A. Eight B. Ten C. Twelve D. Fourteen C What is the highest typical ambient noise level where audio paging becomes unintelligible? A. 75 dB B. 85 dB C. 95 dB D. 105 dB A What element is typically NOT part of a paging system? A. Strobe B. Distribution C. Amplification D. Loudspeakers D You are designing a four story retail mall and multiple sound systems within it. Which system should you design to support general music programming within common retail areas? A. Distributed paging B. Life safety C. Sound masking D. Sound reinforcement and playback C A properly designed distributed paging system will provide a sound pressure level (SPL) for audio paging that is between ________ above ambient noise level. A. 3 dB and 6 dB B. 6 dB and 10 dB C. 10 dB and 20 dB D. 20 dB and 55 dB A In a hallway with normal traffic, ceiling mounted speakers should be placed ________ times the corridor height, minus the ________. A. Two C You are designing a restaurant located within a retail mall. The ambient noise level of the restaurant is 70 dB. The ambient noise level of the mall common space is 75 dB. What is the MINIMUM sound pressure level (SPL) that should be used when designing the paging system within the restaurant? A. 70 dB B. 75 dB C. 80 dB D. 85 dB A For design purposes, loudspeakers are rated for a measured sound pressure level (SPL) at: A. 1 m (3.3 ft) from the loudspeaker with 1 watt of power input B. 1 m (3.3 ft) from the loudspeaker with 2 watts of power input C. 3 m (10 ft) from the loudspeaker with 1 watt of power input D. 3 m (10 ft) from the loudspeaker with 2 watts of power input C Within a commercial office building of 2300 sq m (25000 sq ft), how many building automation system (BAS) devices are required? A. 50 B. 75 C. 100 D. 125 E. 150 A Which of the following protocols is referred to under ISO 16484-5? A. BACnet B. ARCnet C. European installation bus D. EMSLan E. LonMark D What type of facility requires a building automation system (BAS) device to be located every 5 sq m (50 sq ft)? A. Hotel guest room B. Education classroom C. Hospital D. Mechanical room E. Factory B What is the expected lumenance value, in watts, of a 200 watt fluorescent lamp after three years? A. 120 watts B. 140 watts C. 160 watts D. 180 watts E. 200 watts C What is the expected life cycle, in years, of building automation system within a building structure with a life cycle of 40+ years? A. 1 to 2 B. 2 to 4 C. 5 to 7 D. 8 to 12 E. 12 to 15 B Within a heating ventilation and air conditioning automatic control system, what do the letters DDC sta