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Electrical NCCER test Exam Questions with Correct Answers
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  • NCCER Electrical
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  • NCCER Electrical

In a guardrail system, the guardrails can be made of any of the following EXCEPT: - Answer-rope-banding If the potential across the circuit is 48 volts and the current is 5 amps the resistance of the circuit is: - Answer-9.6 ohms A UL listed rod type grounding electrode must have a minimum le...

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  • September 4, 2024
  • 6
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • electrical nccer test exam questions with correct
  • in a guardrail system the guardrails can be made

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  • NCCER Electrical
  • NCCER Electrical

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Electrical NCCER test Exam Questions
with Correct Answers
In a guardrail system, the guardrails can be made of any of the following EXCEPT: -
Answer-rope-banding

If the potential across the circuit is 48 volts and the current is 5 amps the resistance of
the circuit is: - Answer-9.6 ohms

A UL listed rod type grounding electrode must have a minimum length of: - Answer-8'

What is the MINIMUM number of overload sensing units required for all three phase
motors? - Answer-3

In a circuit of pure capacitance, the current leads the voltage by an angle of: - Answer-
90-degrees

The standard unit for a measuring the cross-sectional area of a wire is the: - Answer-
circular mil

The drawing scale is MOST likely to be found in which of the following drawing
locations? - Answer-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: - Answer-20 ft.

When installing heating cables for anti-icing systems, cable patters should be in a: -
Answer-Serpentine

An auxiliary holding contact (seal-in) on a NEMA starter is indicated by the terminal
marking: - Answer-A1 & A2

The neutral bus in a sub panel: - Answer-is bonded

The PEAK voltage in a nominal 120/208 VAC system is: - Answer-208V.

THWN conductors have an outer jacket made of: - Answer-nylon

What is shown on a sectional drawing? - Answer-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? - Answer-no one.

, The MAIN purpose of a revision block on an electrical drawing is to: - Answer-note any
changes to the original drawings

Which of the following is the classified location where combustible vapors are always
present? - Answer-class I Div I

With a row of 3-4" conduits and second row of 3-2" and 2-1" conduits for an angle pull
box what is the MINIMUM distance between the opposite walls of the pull box? -
Answer-32"

Exposed field-routed electrical conduit SHOULD be installed so that it: - Answer-is
plumb and level

When wiring control push button control circuit, the auxiliary holding contact (seal-in) is
wired with the start button in: - Answer-parallel

Ferrous metal raceways, boxes, fittings, and supports must be protected against: -
Answer-corrosion

Which of the following factors is used to control the speed of an induction motor? -
Answer-Frequency

Electrical hand tools that use a regular 120-volt system MUST be 3-wire grounded
UNLESS the: - Answer-tool is double-insulated and is approved by an independent
testing facility.

A conductor with 220 mils of insulation would have insulation thickness of: - Answer-
0.22"

What is the purpose of sealing cable ends that are in storage? - Answer-to keep
moisture from entering it

Which one of the fuses is a standard size according to the NEC? - Answer-3

A 1000 KVA three phase transformer has a secondary voltage of 208/120. What is the
secondary full load amperage? - Answer-

A megohmmeter will be used to check a cable. The electrician MUST be sure that the
circuit is - Answer-de-energized and locked, tagged out, and tested.

A protective device for limiting voltage spikes by discharging or bypassing surge current
is called a: - Answer-surge limiter

What is the resultant distance between center bends for a 10-inch offset at 15 degrees?
- Answer-38.7 In.

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