2024/ 2025 | © copyright | This work may not be copied for profit gain Excel!
Electrical NCCER test Questions and
Answers | Latest Update
In a guardrail system, the guardrails can be made of any of the following EXCEPT:
✓ ropebanding
If the potential across the circuit is 48 volts and the current is 5 amps the resistance of the
circuit is:
✓ 9.6 ohms
A UL listed rod type grounding electrode must have a minimum length of:
✓ 8'
What is the MINIMUM number of overload sensing units required for all three phase
motors?
✓ 3
In a circuit of pure capacitance, the current leads the voltage by an angle of:
✓ 90-degrees
1 | P a g e | G r a d e A + | 2 0 0 2 5
,2024/ 2025 | © copyright | This work may not be copied for profit gain Excel!
The standard unit for a measuring the cross-sectional area of a wire is the:
✓ circular mil
The drawing scale is MOST likely to be found in which of the following drawing locations?
✓ 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:
✓ 20 ft.
When installing heating cables for anti-icing systems, cable patters should be in a:
✓ Serpentine
An auxiliary holding contact (seal-in) on a NEMA starter is indicated by the terminal
marking:
✓ A1 & A2
The neutral bus in a sub panel:
✓ is bonded
1 | P a g e | G r a d e A + | 2 0 0 2 5
, 2024/ 2025 | © copyright | This work may not be copied for profit gain Excel!
The PEAK voltage in a nominal 120/208 VAC system is:
✓ 208V.
THWN conductors have an outer jacket made of:
✓ nylon
What is shown on a sectional drawing?
✓ 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?
✓ no one.
The MAIN purpose of a revision block on an electrical drawing is to:
✓ note any changes to the original drawings
Which of the following is the classified location where combustible vapors are always
present?
1 | P a g e | G r a d e A + | 2 0 0 2 5
Electrical NCCER test Questions and
Answers | Latest Update
In a guardrail system, the guardrails can be made of any of the following EXCEPT:
✓ ropebanding
If the potential across the circuit is 48 volts and the current is 5 amps the resistance of the
circuit is:
✓ 9.6 ohms
A UL listed rod type grounding electrode must have a minimum length of:
✓ 8'
What is the MINIMUM number of overload sensing units required for all three phase
motors?
✓ 3
In a circuit of pure capacitance, the current leads the voltage by an angle of:
✓ 90-degrees
1 | P a g e | G r a d e A + | 2 0 0 2 5
,2024/ 2025 | © copyright | This work may not be copied for profit gain Excel!
The standard unit for a measuring the cross-sectional area of a wire is the:
✓ circular mil
The drawing scale is MOST likely to be found in which of the following drawing locations?
✓ 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:
✓ 20 ft.
When installing heating cables for anti-icing systems, cable patters should be in a:
✓ Serpentine
An auxiliary holding contact (seal-in) on a NEMA starter is indicated by the terminal
marking:
✓ A1 & A2
The neutral bus in a sub panel:
✓ is bonded
1 | P a g e | G r a d e A + | 2 0 0 2 5
, 2024/ 2025 | © copyright | This work may not be copied for profit gain Excel!
The PEAK voltage in a nominal 120/208 VAC system is:
✓ 208V.
THWN conductors have an outer jacket made of:
✓ nylon
What is shown on a sectional drawing?
✓ 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?
✓ no one.
The MAIN purpose of a revision block on an electrical drawing is to:
✓ note any changes to the original drawings
Which of the following is the classified location where combustible vapors are always
present?
1 | P a g e | G r a d e A + | 2 0 0 2 5
