NCCER Test Practice Exam 2024-2025
Questions and Correct Answers
In a guardrail system, the guardrails can be made of any of the
following EXCEPT: a) pipe
b) chain
c) ropebanding
d) cable - ANSWER>>Ropebanding
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 - ANSWER>>9..6 ohms
A UL listed rod type grounding electrode must have a MINIMUM
length of: a) 6'
b) 8'
c) 10'
d) 20' - ANSWER>>8'
What is the MINIMUM number of overload sensing units required
for all three phase motors? a) 0
b) 1
c) 2
d) 3 - ANSWER>>3
In a circuit of pure capacitance, the current leads the voltage by
an angle of:
a) 30-degrees
