NCC Practice Test 5 Questions and
Answers11
two junction boxes are each located on different walls, 12 inches from the same corner. Given a
90* bend with a take-up of 6 inches and a gain 2-1/4 inches, what is the developed length of the
conduit between them? - ANSWERS-21 3/4"
Which of the following is most commonly used to cut RMC and IMC? - ANSWERS-pipe cutter
Which of the following types of transformers can be ventilated, air-cooled, or sealed? -
ANSWERS-Dry-type transformers
Before starting a cable pull, make sure that - ANSWERS-all communications equipment is in
working order
When performing thermographic surveys, a major deficiency is indicated by a gradient of -
ANSWERS-16* C
The voltage imbalance trip point for a programmable solid-state overload relay is typically set
for - ANSWERS-5%
The basic purpose of switchgear is to - ANSWERS-provide power system protection by
automatically isolating faulty components
The line voltages in a Y connection are - ANSWERS-1.732 times higher than the phase voltages
A transformer can be checked for shorted turns using a - ANSWERS-TTR tester
, A typical hand-crank wire puller, using 30 pounds of force, can pull up to - ANSWERS-1500
pounds
According to the NEC, neutral conductors size No. 6 and smaller must have a continuous
marking of white or - ANSWERS-gray
A device that is used to step up generated voltage to make it suitable for commercial
transmission is called a - ANSWERS-power transformer
Which of the following provides a curved surface for the cable to follow as it passes from the
tray? - ANSWERS-dropout plate
Capacitors are covered in - ANSWERS-NEC Article 460
An SSOLR initiates a trip if the phase currents exceed what percentage of the trip current dial
setting? - ANSWERS-125%
The resistance of switchgear should be checked using a - ANSWERS-1000V megger
Symbols used to show cable tray systems on working drawings are explained in the - ANSWERS-
legend
Which of the following is an NEC requirements for grounding and bonding cable tray
installations? - ANSWERS-Steel or aluminum trays may be used as equipment grounding
conductors
A downed power line is most likely to result in a - ANSWERS-phase failure
Answers11
two junction boxes are each located on different walls, 12 inches from the same corner. Given a
90* bend with a take-up of 6 inches and a gain 2-1/4 inches, what is the developed length of the
conduit between them? - ANSWERS-21 3/4"
Which of the following is most commonly used to cut RMC and IMC? - ANSWERS-pipe cutter
Which of the following types of transformers can be ventilated, air-cooled, or sealed? -
ANSWERS-Dry-type transformers
Before starting a cable pull, make sure that - ANSWERS-all communications equipment is in
working order
When performing thermographic surveys, a major deficiency is indicated by a gradient of -
ANSWERS-16* C
The voltage imbalance trip point for a programmable solid-state overload relay is typically set
for - ANSWERS-5%
The basic purpose of switchgear is to - ANSWERS-provide power system protection by
automatically isolating faulty components
The line voltages in a Y connection are - ANSWERS-1.732 times higher than the phase voltages
A transformer can be checked for shorted turns using a - ANSWERS-TTR tester
, A typical hand-crank wire puller, using 30 pounds of force, can pull up to - ANSWERS-1500
pounds
According to the NEC, neutral conductors size No. 6 and smaller must have a continuous
marking of white or - ANSWERS-gray
A device that is used to step up generated voltage to make it suitable for commercial
transmission is called a - ANSWERS-power transformer
Which of the following provides a curved surface for the cable to follow as it passes from the
tray? - ANSWERS-dropout plate
Capacitors are covered in - ANSWERS-NEC Article 460
An SSOLR initiates a trip if the phase currents exceed what percentage of the trip current dial
setting? - ANSWERS-125%
The resistance of switchgear should be checked using a - ANSWERS-1000V megger
Symbols used to show cable tray systems on working drawings are explained in the - ANSWERS-
legend
Which of the following is an NEC requirements for grounding and bonding cable tray
installations? - ANSWERS-Steel or aluminum trays may be used as equipment grounding
conductors
A downed power line is most likely to result in a - ANSWERS-phase failure
