NEIEP 500 FINAL EXAM WITH QUESTIONS AND CORRECT ANSWERS GRADED A (NEWEST!)

NEIEP 500 FINAL EXAM WITH QUESTIONS AND CORRECT ANSWERS GRADED A (NEWEST!) "What is shown on the final layout? - CORRECT ANSWER A plan drawing and an elevation giving dimensions" "In the circuit shown, which is the common wired for the second level? - CORRECT ANSWER DC+" "How are wire sizes larger than 4/0 measured? - CORRECT ANSWER In circular mils" "21 - CORRECT ANSWER Size of conduit is determined by the inside diameter" "22 - CORRECT ANSWER NEC states wire used in elevators must have flame retardant insulation" "23 - CORRECT ANSWER Thin wall pipe, the radius of the bend is controlled by the bender" "24 - CORRECT ANSWER Three bend offset, center bend is 45 degrees, other bends are 22 ½" "25 - CORRECT ANSWER Final layout, pipe planning/wiring" "26 - CORRECT ANSWER Job abstract, fixture" "27 - CORRECT ANSWER Single travel cable may contain over 100 conductors" "28 - CORRECT ANSWER Straight line diagrams are intended for troubleshooting" "29 - CORRECT ANSWER Ampacity- means current carrying capacity" "What is the maximum distance between supports on a vertical raceway? - CORRECT ANSWER 15 feet" "What must be installed every 100 ft in a vertical raceway? - CORRECT ANSWER Strain supports" "How many threads per in are there on a 10-24 machine screw? - CORRECT ANSWER 24" "Interlocks are always wired in what manner? - CORRECT ANSWER series" "Why would you wear a grounding wrist strap? - CORRECT ANSWER To prevent damage to sensitive solid state circuits" "what is your best source of information for fixture specifications? - CORRECT ANSWER Job abstract of the final layout" "What type of solder must be used on electrical wires? - CORRECT ANSWER Rosin cor" "75 - CORRECT ANSWER Person can be electrocuted by .01 amperes" "76 - CORRECT ANSWER Final limits are set up to operate 4-8 inches beyond the floor" "77 - CORRECT ANSWER When the pit is 5'6" deep second stop switch" "78 - CORRECT ANSWER Group of insulated conductors enclosed in protective jacket is a MULTICORD" "79 - CORRECT ANSWER Non insulated conductor's are hoist way wiring cable" "What factor is reduced by the addition of a deflector sheave? - CORRECT ANSWER Arc-length of contact" "If a hydraulic pump makes a hammering noise, what is the most likely cause? - CORRECT ANSWER It is rotating in the wrong direction" "At what point is the main motor field voltage highest? - CORRECT ANSWER When the elevator is running" "When might you place jumpers on the overloads? - CORRECT ANSWER Never jump out the overloads" "If the generator is rotating and you apply voltage to the field but no armature voltage is produced, what is most likely wrong? - CORRECT ANSWER Generator field is open" "If there is voltage at the generator armature but not at the motor armature, what is most likely wrong? - CORRECT ANSWER The loop circuit is open" "What is typically used in a solid state motor drive system to measure actual motor speed? - CORRECT ANSWER Tachometer" "100 - CORRECT ANSWER SCR will not conduct until it is gated" "101 - CORRECT ANSWER SCR convert AC to DC" "When setting sills, which of the following must be done? - CORRECT ANSWER If rough spots exist on the roughed floor, set the sill to finished floor height to account for thickness of material" "You are installing push button boxes in a high-rise building. What is the maximum height that they can be located from the floor level to the center of the fixture? - CORRECT ANSWER 42"" "Which of the following is a requirement that must be met when interlocks are installed on freight elevators? - CORRECT ANSWER It must be tamper resistant to prevent override of the door contacts" "What is the requirement for hoistway access switches for dumbwaiters? - CORRECT ANSWER They are required at the terminal landings when the rise is 25ft or greater" "What terminals in the hoistway junction box could most likely be hot even when the mainline disconnect is open? - CORRECT ANSWER The 110VAC lighting circuit" "What is the purpose of the eccentric used on hoistway door hangers? - CORRECT ANSWER Prevents the doors from being dislodged off the track by external forces" "What is the minimum overhead clearance for raceways mounted in the machine room overhead? - CORRECT ANSWER 7 feet" "Referring to Figure 2: What is the minimum loop size for 1 1/2" traveling cable? - CORRECT ANSWER 45"" "What is the metal enclosure that furnishes protection for electrical wires called? - CORRECT ANSWER Raceway" "Which of the following is correct about splicing wires? - CORRECT ANSWER All splices must be accessible after installation is complete" "What is the maximum clearance allowed between the hoistway sill and the platform sill for passenger elevators? - CORRECT ANSWER 1 1/2"" "You are adjusting the passenger doors for a traction drive with generator field control. What is the maximum distance the car can be from the floor level before the doors can unlock? - CORRECT ANSWER 18"" "What type of AC motor connection windings are shown in figure 3? - CORRECT ANSWER High voltage, wye connection" "What type of cab platform frame is required when a platform load weighing system is being included? - CORRECT ANSWER Isolated" "How can you reverse the direction of a three lead, three phase AC motor? - CORRECT ANSWER Interchange any two leads" "You are adjusting the gibs on a set of horizontal sliding doors. What is the minimum distance the gib must engage in the sill groove? - CORRECT ANSWER 1/4"" "As concrete in a building cures, what happens? - CORRECT ANSWER The building contracts" "Refer to Figure 4: Which contact controls power application to the entire door control circuit? - CORRECT ANSWER The DZ contact" "Referring to Figure 5: What purpose do BR 1, 3 and BR 4, 6 contacts serve in the circuit? - CORRECT ANSWER The enable the suicide circuit when the brake drops" "With a multi-traveling cable installation, what will cable 1 be located closest to? - CORRECT ANSWER Rail" "What component is installed to close the gap between the leading metal edges of vertically sliding biparting freight doors? - CORRECT ANSWER Astragal" "What will the effect be of increasing the shunt field voltage of a DC door motor? - CORRECT ANSWER It will increase torque and decrease speed" "What is the maximum distance the gate switch can be actuated from the full closed position to signal the gate is closed? - CORRECT ANSWER 2"" "Refer to Figure 6: When closing in high-speed, which of the following statements is correct? - CORRECT ANSWER HSC is closed to increase the voltage across the armature" "Refer to Figure 6: Which of the following statements is correct? - CORRECT ANSWER During the closing sequence, the A1 terminal on the armature is positive" "Refer to Figure 7: If the adjustment on the resistor R1 is moved to the left, what effect will that have on the circuit? - CORRECT ANSWER It will increase voltage across the field during opening and closing" "Which of the following devices must be installed on passenger-type freight elevator doors? - CORRECT ANSWER Fire lintel" "If car and counterweight safeties both set during testing, how are they reset? - CORRECT ANSWER It would be necessary to rig a chain hoist in the overhead" "What circuit on a Ward Leonard drive system kills voltage due to residual magnetism in the generator fields? - CORRECT ANSWER The damping circuit" "What is the name of the device that is used to prevent an AC motor from running the wrong direction? - CORRECT ANSWER A reverse phase relay" "What is the maximum distance that vertical raceway must be supported? - CORRECT ANSWER 15 feet" "Which of the following would be used to automatically re-open the doors without physical contact of power operated vertically sliding freight elevator doors? - CORRECT ANSWER Proximity device" “What is the name of the code that is the accepted standard for all electrical wiring in the United States? - CORRECT ANSWER National Electrical Code" "What is the maximum distance between supports of a vertical raceway, based on NEC Article 620-32? - CORRECT ANSWER 15 feet" "What type of flex would be used to pipe a switch in a wet location? - CORRECT ANSWER Liquidtight Flex" "What is the name for the complete metal system of duct, conduit and flex that protects the wiring? - CORRECT ANSWER Raceway" "How is the work divided when planning piping and wiring of an elevator installation? - CORRECT ANSWER Hoistway, car and machine room" "What document may be the only place to look for such information as type of fixtures, car panel, fire service floor, etc? - CORRECT ANSWER Job abstract" "What information is shown on a pull sheet? - CORRECT ANSWER Terminal connections" "Which type of diagram shows a simplified path from positive to negative for all components in a circuit? - CORRECT ANSWER Straight line" "How are multiple installations of traveling cables numbered for a single car? - CORRECT ANSWER From the rail regardless of placement in the hoistway" "What is the abbreviated term for current carry8ing capacity? - CORRECT ANSWER Ampacity" "What is the minimum size wired for lighting circuits in an elevator installation? - CORRECT ANSWER #14" "What is the special about wire used for the interlock circuit? - CORRECT ANSWER It must be rated for 200 degrees C" "What is the smallest wire that is permitted in an elevator installation? - CORRECT ANSWER #24" "When bending conduit, what is the maximum number of decrees of bend allowed between access points? - CORRECT ANSWER 90 degrees" "What is the reference point on the thin-wall bender for the finish line of a back to back bend? - CORRECT ANSWER The star point" "What is the total in degrees of the bends in a three-bend saddle? - CORRECT ANSWER 90 degrees" "You have 10' length of ¾" rigid conduit which needs to have a 90 degree bend with a 16" stub height. With a 7" take- up, what is the distance from the end of the pipe to the mark where the hickey arrow is aligned? - CORRECT ANSWER 9 inches" "What switch is installed in areas of the country subjects to earthquakes which detects ground motion when an earthquake is imminent? - CORRECT ANSWER A seismic switch" "What is the minimum overhead clearance for raceways mounted in the machine room overhead? - CORRECT ANSWER 7ft" "What is the maximum length of motor generator leads that may be connected directly to the controller without being run inside a raceway? - CORRECT ANSWER 6ft" "You have 10' length of ¾" rigid conduit which needs to have a 90 degree bend with a 16" stub height. With a 7" take-up, what is the distance from the end of the pipe to the mark where the hickey arrow is aligned? - CORRECT ANSWER 9 in" "When a vertical raceway exceeds 100 ft, what precautions must be taken? - CORRECT ANSWER Allow ¼" gap between sections" "What hazard is present in a Class 1 location? - CORRECT ANSWER Flammable gasses" "What purpose does a fish tape serve? - CORRECT ANSWER It is used to pull wires in conduit" "Which of the following devices are included in a traction elevator safety circuit? - CORRECT ANSWER Final terminal stopping limits and pit stop switch" "What is the difference between multi-cord and hoistway wiring cable? - CORRECT ANSWER Hoistway wiring cable has no outer jacket" "What is another name for large ring terminal connectors? - CORRECT ANSWER Lugs" "After large wires have been joined, how should the connections be finished? - CORRECT ANSWER Use rubber tape for insulation and electrical tape for abrasion resistance" "What is the least number of motor leads that can be found on a 3 phase AC motor? - CORRECT ANSWER Three" "With standard 3 phase AC motor lead marking, what is the marking on the other end of the winding that begins at T1? - CORRECT ANSWER T4" "What is the common error when using wire nuts? - CORRECT ANSWER Stripping too much wire" "Where position indicators are used on several floors, they are all connected how? - CORRECT ANSWER In parallel" "What is meant by isolation? - CORRECT ANSWER Mounting the car on rubber blocks" "Where is safety switches located? - CORRECT ANSWER Under car or on the car top" "what is the minimum number of lamps required in the car light fixture? - CORRECT ANSWER Two" "What are the two most common functions of load weighing? - CORRECT ANSWER To control the generator field and initiate express operation" "What does ASME code require on the car top in addition to inspector control station? - CORRECT ANSWER A light and duplex outlet" "How should AC incandescent lamp sockets be connected? - CORRECT ANSWER Connect the hot lead to the center terminal and ground conductor to the shell" "What type of conduit should you use to pipe an isolated car? - CORRECT ANSWER Flex" "In order to work safely when wiring the car, which of the following should you always do? - CORRECT ANSWER Lock out and tag out the main disconnect" "At what distance from closed must the gate switch operate? - CORRECT ANSWER 2in" "WHAT is the car top device called which slows elevator if normal slowdowns fail? - CORRECT ANSWER Terminal speed limiting device" "What safety device is required with automatically closing, vertical sliding, freight doors? - CORRECT ANSWER A warning bell" "What can be shown on a sixteen segment display? - CORRECT ANSWER Numbers and letters" "What is the minimum number of spare wires that should be pulled? - CORRECT ANSWER 10%" "When making connections at terminal posts, how should the traveling cables be connected? - CORRECT ANSWER on the top" "When more than one screw is used as a terminal, how are the screws connected? - CORRECT ANSWER with a shorting bar" "What distance away from the floor is a solid state driven elevator allowed to move with doors open? - CORRECT ANSWER 3 in" "Which statement is correct about using wire nuts? - CORRECT ANSWER Screw the wire nut over the splice using pliers to get it tight" "What is required if the strain wire is to be used as a ground? - CORRECT ANSWER Insulated covering" "When using a hoisting line to install cables, what device could be used to prevent twisting? - CORRECT ANSWER Swivel ling" "What is the ratio between cable diameter and the size of the loop? - CORRECT ANSWER 30 times" "How fast does the loop in relation to car speed? - CORRECT ANSWER ½ car speed" "Why are new traveling cables allowed to hang free for a time? - CORRECT ANSWER To relieve torsional stress" "How must traveling cable be unreeled into the hoistway? - CORRECT ANSWER Place the reel so the cable unreels from the bottom" "If a car is to be used as a running platform without the cab, how many counterweights should be installed? - CORRECT ANSWER Slightly more than needed to balance car" "Why is loss of hoist rope traction hazardous? - CORRECT ANSWER Control of the elevator is lost" "Once SCR is gated how long does it continue to conduct? - CORRECT ANSWER Until the AC sine wave passes through zero" "What is the approximate density of cast iron? - CORRECT ANSWER ¼ per cubic inch" "What is the function of the compensating sheave switch? - CORRECT ANSWER It opens if the sheave moves up or down beyond limitsIt opens if the sheave moves up or down beyond limits" "Which rope should be in place before the car sling is hoisted for roping? - CORRECT ANSWER Governor rope" "What switches and/or pushbuttons are required in a temporary operating station? - CORRECT ANSWER Up,down,run and stop" "How do you verify that the main electrical supply voltage is correct? - CORRECT ANSWER Check at the controller terminals" "What type of fuse is designed to be used in reactive circuits where the inrush current is much higher than the steady state current? - CORRECT ANSWER Time delay" "At what speed should the gov switch contact be set to open? - CORRECT ANSWER 90 to 95 percent of gov tripping speed" "How should you seat generator brushes? - CORRECT ANSWER With sandpaper in the direction of rotation" "What is the purpose of the suicide circuit? - CORRECT ANSWER Prevents generator voltage buildup" "If the DC output of a three phase rectifier is lower that specified, what would the most likely cause? - CORRECT ANSWER One input phase is missing" "which of the following statements applies to facias? - CORRECT ANSWER Hanger covers should be installed after the interlock and door adjustments have been completed" "When installing Hostway doors, what is the purpose of the sight guard? - CORRECT ANSWER Used to provide a clean door edge that blocks the Hostway from publics view" "You have received a large shipment of doors for a high-rise installation and have to get them stored properly. Which of the following statements is correct? - CORRECT ANSWER Store the doors vertically on the long edge" "When setting sills, which of the following statements applies? - CORRECT ANSWER Worth the effort to make a template to determine sill locations on a high-rise" "When setting sills in compliance with the ASME rules, what is the minimum clearance allowed between the platform sill and Hostway sill? - CORRECT ANSWER ½ inch" "When setting sills in compliance with ASME rules, what is the max clearance allowed between the platform sill and hoisway sill? - CORRECT ANSWER 1 ½ inch" "You are installing a door frame, which of the following statements applies? - CORRECT ANSWER Use plumb lines hanging from magnets to plumb the side frames" "After installing entrances frames are prior to the blocks being installed, what is the next step in the procedure? - CORRECT ANSWER Place a spreader board with cloth or paper on the ends halfway up the frame between side jams" If the ratio of movement between a synchronous selector and the elevator car is 60 to 1, how far will the selector move if the car travels 30 feet? - CORRECT ANSWER 6 inches" "What device is installed to hold the vertically biparting freight doors mechanically closed? - CORRECT ANSWER Keeper" "Which of the following statements is correct regarding single-section swing doors used as emergency exits for blind hoistways? - CORRECT ANSWER The doors must be self-closing and self-locking, a unique key, and switch to prevent elevator operations when open." "When setting up a retiring cam for a freight elevator, which of the following statements is correct? - CORRECT ANSWER The cam must apply a force that is double what's required for normal interlock operation" "Refer to Figure 1: What contact or contacts are closed when the doors are closing and you have reached the first slow down? - CORRECT ANSWER 1 only" "What does the symbol shown below represent? - CORRECT ANSWER Ground" "How many turns of safety rope must remain on the safety drum after a rated load and rated speed test of a winding drum operated safely? - CORRECT ANSWER 3" "What is the maximum force allowed during the passenger door closing cycle to prevent a door at rest from closing? - CORRECT ANSWER 30 lbs" "Proper adjustment of which of the following can reduce the effects of building compression on an elevator installation? - CORRECT ANSWER Rail jack bolts" "When installing passenger hoistway entrances in a rise of more than three floors without a running platform, which procedure should you follow? - CORRECT ANSWER Build a template that you can use to measure off the door frame locations and sill center line" "What type of flex would be used to pipe a switch in a wet location? - CORRECT ANSWER Liquidtight Flex" "Which of the following components is used to engage and couple the car door to the hoistway door during opening and closing? - CORRECT ANSWER Door clutch" "On high rise runs of raceway, the wires must be supported at least how many feet apart? - CORRECT ANSWER 100 feet" "If there is voltage at the generator armature, but not at the motor armature, what is most likely wrong? - CORRECT ANSWER The loop circuit is open" "You need to store a shipment of passenger hoistway doors. Which of the following statements are correct? - CORRECT ANSWER Store the doors vertically on the long edge" "What is the minimum size wire allowed by code for wiring 110VAC lighting circuits to elevator cars? - CORRECT ANSWER #14" "Which of the following statements is correct for dumbwaiter installations that use mechanical locks and electrical contacts? - CORRECT ANSWER They are unlocked by a stationary cam located on the car" "When adjusting center-opening horizontal sliding passenger doors, what is the maximum the leading metal edges can be apart when the doors are closed? - CORRECT ANSWER 1/2"" "What is the minimum height of a barricade in place around an open wellway? - CORRECT ANSWER 42"" "When bending conduit, what is the maximum number of bends in degrees between access points? - CORRECT ANSWER 360 degrees"