NCCER LEVEL 3 Module 7 Exam
2023 With 100% Correct Answers
Conductors connected to the high leg of a four-wire delta system be color-coed with what color of
insulation or tape? -correct answer -Orange (NEC Section 110.15)
Dry-type transformers rated at 112.5kVA or less may be located out in the open provided they are
separated from combustible material by a distance of ____. -correct answer -12"
If the power factor is improved by the addition of a capacitor, the motor running overcurrent device
must be selected based on the ___. -correct answer -reduced current
Except for motors starting service, insulated conductors used for connections between resistors and
motor controllers must be rated at not less than ___. -correct answer -90 C
A transformer reads zero volts across the output terminals. The cause is most likely ____. -correct
answer -an open circuit
When performing maintenance on dry-type transformers, check for cracked insulation on transformers
over ____. -correct answer -1,000V
The main purpose of a transformer is to ______________ . -correct answer -Change the output voltage
The three parts of a basic transformer are the ___. -correct answer -primary winding, secondary
winding, and core
When AC flows through a transformer coil, the field generated around the coils is a ___. -correct answer
-magnetic field
2023 With 100% Correct Answers
Conductors connected to the high leg of a four-wire delta system be color-coed with what color of
insulation or tape? -correct answer -Orange (NEC Section 110.15)
Dry-type transformers rated at 112.5kVA or less may be located out in the open provided they are
separated from combustible material by a distance of ____. -correct answer -12"
If the power factor is improved by the addition of a capacitor, the motor running overcurrent device
must be selected based on the ___. -correct answer -reduced current
Except for motors starting service, insulated conductors used for connections between resistors and
motor controllers must be rated at not less than ___. -correct answer -90 C
A transformer reads zero volts across the output terminals. The cause is most likely ____. -correct
answer -an open circuit
When performing maintenance on dry-type transformers, check for cracked insulation on transformers
over ____. -correct answer -1,000V
The main purpose of a transformer is to ______________ . -correct answer -Change the output voltage
The three parts of a basic transformer are the ___. -correct answer -primary winding, secondary
winding, and core
When AC flows through a transformer coil, the field generated around the coils is a ___. -correct answer
-magnetic field
