Electrical NCCER test Exam Questions with Correct Answers
5 views 0 purchase
Course
NCCER Electrical
Institution
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...
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.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller lectknancy. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.49. You're not tied to anything after your purchase.
