NCCER PRACTICE TEST QUESTIONS AND ANSWERS

NCCER PRACTICE TEST QUESTIONS
AND ANSWERS
Ropebanding - Answer-In a guardrail system, the guardrails can be made of any of the
following EXCEPT:
a) pipe
b) chain
c) ropebanding
d) cable

9..6 ohms - Answer-If the potential across the circuit is 48 volts and the current is 5
amps the resistance of the circuit is:
a) 4.8 ohms
b) 9.6 ohms
c) 48.0 ohms
d) 96.0 ohms

8' - Answer-A UL listed rod type grounding electrode must have a MINIMUM length of:
a) 6'
b) 8'
c) 10'
d) 20'

3 - Answer-What is the MINIMUM number of overload sensing units required for all
three phase motors?
a) 0
b) 1
c) 2
d) 3

90-degrees - Answer-In a circuit of pure capacitance, the current leads the voltage by
an angle of:
a) 30-degrees
b) 45-degrees
c) 90-degrees
d) 180-degrees

Circular mil - Answer-The standard unit for measuring the cross-sectional area of wire is
the:
a) circular mil
b) square mil
c) round mil
d) radial mil