NCTI – Installer Exam Revised Questions With 100% Verified Solutions

NCTI – Installer Exam Revised Questions With 100% Verified Solutions Which tool is used to check for a hot chassis condition? - ANSWER B) Digital multimeter. DMM Which of the following situations can cause a hot chassis condition? - ANSWER B) Plugging an adapter incorrectly into a nonpolarized receptacle. Which of the following safety practices must be followed when working with fiber-optic cable? - ANSWER A) Avoid looking directly into the end of a piece of fiber that may be connected to a light source. Ladders used in the cable industry are durable and do not conduct electricity through the length of the ladder. What are they made of? - ANSWER B) Fiberglass with aluminum rungs. Which of the following is one of the three correct ways of carrying a ladder? - ANSWER D) D-ring carry. Which of the following is a correct step when lifting the ladder using the D-ring carry? - ANSWER B) Turn the strand hooks so they face the strand. Before you start work after climbing an extension ladder, how should you check for electrical hazards? - ANSWER D) Use a foreign voltage detector. Which of the following is a proper step when removing the ladder from the strand? - ANSWER C) Clear the hooks from the strand. Which of the following is a step for safely removing the safety strap from the pole when preparing to descend a pole? - ANSWER A) Grasp the pole with the left hand and slightly pull yourself toward the pole to take weight off of the strap. Which of the following is one of the proper steps when descending the pole? - ANSWER C) Lower the leg into position with body weight behind it. Which of the following is true when ascending in a bucket truck? - ANSWER C) Set the parking brake. Which of the following is true about extending the boom? - ANSWER C) Lift and turn the boom as much as possible before extending it. What is the purpose of a scratch awl? - ANSWER A) Marking the location on wood or drywall for drilling holes and installing cover plate screws. What is a function of the time domain reflectometer (TDR)? - ANSWER A) Locate cable cuts, unknown splices, splitters, directional couplers, and cable impedance mismatches. What is a function of a digital multimeter (DMM)? - ANSWER B) Check for hot chassis condition. What is a function of a cable modem emulator? - ANSWER A) Work with a transponder at the headend to conduct a return test. What is the purpose of side cut or diagonal pliers? - ANSWER C) Cutting coaxial or other types of cable. Which of the following tools is used for twisted-pair work? - ANSWER B) Punch-down tool. Which tool should you have the air vents clear and always store in in a dry area? - ANSWER drill Which testing tool plugs into a modular phone jack to give you access to the individual wires at the outlet? - ANSWER C) Banjo modular test adapter. Which tool is also called "fish sticks"? - ANSWER B) Glow rod. Which SLM accessory should be changed out every few days? - ANSWER coax jumper What is a function of a cable modem emulator? - ANSWER ) Test and quantify the drop's ability to provide high-speed data (HSD) or Internet protocol (IP) Voice service. One of the first steps when you reach the site is to inspect the drop cable at the tap. Damaged cable can cause - ANSWER C) Signal leakage. Before digging in an underground installation, the utility lines will need to be located. Which of the following colors represents the electric line? - ANSWER B) The red line. Which of the following will effectively weatherproof the tap drop port connection? - ANSWER D) Install a sealing sleeve. What is a function of a cable caddy? - ANSWER A) It keeps the cable safe from kinking. Which of the following is true about minimum bending radius? - ANSWER D) It is the tightest bend that can be safely applied to coaxial drop cable. Which of the following guidelines should be followed when attaching exterior drop cable to the premises? - ANSWER C) Randomly vary the distance between the attachment points to eliminate the effects of harmonic reflections. Which of the following guidelines should be followed when attaching the lock box to the house? - ANSWER D) The lock box should be located at least one foot from the utility meter and breaker box. Which of the following is true when mounting splitters to an exterior wall? - ANSWER B) Position and attach drop cables with a minimum five-inch diameter drip loop for each port. Which of the following is true when selecting the proper wire when bonding the drop? - ANSWER D) The wire should be solid copper or other corrosive resistant material. A metal underground water pipe can be used as a bonding point as long as it meets the requirements of the current National Electrical Code (NEC) rules. When is bonding to a metal underground water pipe acceptable? - ANSWER D) When the water pipe bonding connection is made anywhere other than within five feet of its entrance into the building. A metal underground water pipe can be used as a bonding point as long as it meets the requirements of the current National Electrical Code (NEC) rules. When is bonding to a metal underground water pipe acceptable? - ANSWER C) When the bonding point can be made within five feet of the pipe entrance to the building. When an outside wall entry hole will not gain direct access to the back of the TV set, or when routing cable around the outside of the house is not practical, what is the next best option? - ANSWER C) Locate the entry hole next to existing utility boxes and route the cable through a crawl space or basement. Before drilling in the customer premises interior, what is one thing to keep in mind? - ANSWER B) Make the interior cable routing as inconspicuous as possible. When drilling an entry hole through an outside wall, drill from the outside to the inside in