Electrical NCCER test Questions and Correct Answers GRADED A+
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Course
NCCER Electrical
Institution
NCCER Electrical
Electrical NCCER test Questions and Correct Answers GRADED A+
In a guardrail system, the guardrails can be made of any of the following EXCEPT: - ANS ropebanding
If the potential across the circuit is 48 volts and the current is 5 amps the resistance of the circuit is: - ANS 9.6 ohms
A...
Electrical NCCER test Questions and
Correct Answers GRADED A+
In a guardrail system, the guardrails can be made of any of the following EXCEPT: -
ANS ropebanding
If the potential across the circuit is 48 volts and the current is 5 amps the resistance of
the circuit is: - ANS 9.6 ohms
A
A UL listed rod type grounding electrode must have a minimum length of: - ANS 8'
VI
What is the MINIMUM number of overload sensing units required for all three phase
motors? - ANS 3
TU
In a circuit of pure capacitance, the current leads the voltage by an angle of: - ANS
90-degrees
IS
The standard unit for a measuring the cross-sectional area of a wire is the: - ANS
circular mil
OM
The drawing scale is MOST likely to be found in which of the following drawing
locations? - ANS the drawing little block
The length of a bare copper conductor in a ground ring MUST be buried no less than
2.5' below grade and with a length of at least: - ANS 20 ft.
NA
When installing heating cables for anti-icing systems, cable patters should be in a: -
ANS Serpentine
JP
An auxiliary holding contact (seal-in) on a NEMA starter is indicated by the terminal
marking: - ANS A1 & A2
The neutral bus in a sub panel: - ANS is bonded
The PEAK voltage in a nominal 120/208 VAC system is: - ANS 208V.
THWN conductors have an outer jacket made of: - ANS nylon
, What is shown on a sectional drawing? - ANS Cutaway view of a building
Who is allowed to remove another electrician's tag or lock from any valve, switch, or
piece of equipment without proper authorization? - ANS no one.
The MAIN purpose of a revision block on an electrical drawing is to: - ANS note any
changes to the original drawings
Which of the following is the classified location where combustible vapors are always
present? - ANS class I Div I
A
With a row of 3-4" conduits and second row of 3-2" and 2-1" conduits for an angle pull
VI
box what is the MINIMUM distance between the opposite walls of the pull box? - ANS
32"
TU
Exposed field-routed electrical conduit SHOULD be installed so that it: - ANS is plumb
and level
When wiring control push button control circuit, the auxiliary holding contact (seal-in) is
IS
wired with the start button in: - ANS parallel
Ferrous metal raceways, boxes, fittings, and supports must be protected against: - ANS
OM
corrosion
Which of the following factors is used to control the speed of an induction motor? - ANS
Frequency
NA
Electrical hand tools that use a regular 120-volt system MUST be 3-wire grounded
UNLESS the: - ANS tool is double-insulated and is approved by an independent
testing facility.
A conductor with 220 mils of insulation would have insulation thickness of: - ANS
JP
0.22"
What is the purpose of sealing cable ends that are in storage? - ANS to keep moisture
from entering it
Which one of the fuses is a standard size according to the NEC? - ANS 3
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