NEC 2017 Journeyman Prep Exam Questions and Answers (Latest Update)
Question : How many 400 W fixtures could be installed on a
120 V 15amp circuit?
- 3
- 5
- 6
- 8
CORRECT ANSWER : 3
Question : Ten 1200 W lightning fixtures are connected on a
277 V system. How many amps might the circuit draw?
- 23
- 60
- 43
- 54
CORRECT ANSWER : 43
Question : A toaster is listed as 1560 W. When it is plugged
into a 120 V circuit and starts to make toast, how many amperes will it draw?
A. 1,440
B. 1,680
- 13
D. 187,200
CORRECT ANSWER : 13
Question : You have been asked to add a 4200 W lighting
fixture to a 20 amp lighting circuit. What is the voltage needed to comply with the NEC?
A. 120 V
B. 240 V
C. 277 V
- none of the above
CORRECT ANSWER : 277 V
Question : An electric circuit has a resistance of 20 Ohms.
The current is measured to be 6 A. How many volts are applied to the circuit?
A. 3 1/3
- 14
- 26
D. 120
CORRECT ANSWER : 120
Question : An electric motor is running on 120 V. The current
is measured to be 2 A. How many ohms of resistance is the motor?
- 60
B. 118
C. 122
D. 240
CORRECT ANSWER : 60
Question : An electrical circuit has a voltage of 50 V and a
resistance of 5 Ohms. What is the value of current?
A. 10 A
B. 45 A
C. 55 A
D. 250 A
Question : A series circuit is a circuit that has only one path
for _____ flow.
- Voltage
- Current
- Power
- Resistance
