NHIE Study Questions with All Correct Answers
What is the minimum electrical clearance over a residential driveway? - Answer- 12 feet
Which event is most likely to cause arc flash? - Answer- Metal touching an energized conductor
In a subpanel, you are required to - Answer- Isolate the neu...
NHIE Study Questions with
All Correct Answers
What is the minimum electrical clearance over a residential driveway? - Answer- 12 feet
Which event is most likely to cause arc flash? - Answer- Metal touching an energized
conductor
In a subpanel, you are required to - Answer- Isolate the neutral bus and conductors
from contacting the panel enclosure
Aluminum branch circuit wiring was commonly used in what years? - Answer- 1965-
1978
A circuit breaker protects against too much - Answer- Current
The minimum electric service clearance above the roadway is: - Answer- 18 feet
What action would most likely reduce fiberglass batt insulation R value by the largest
amount? - Answer- Compressing the insulation reduces the open cell volume to hold
heat.
What is the cause of the condensation on the vent pipe? - Answer- Vent pipe is
oversized
Permeability is the property of a material that allows the passage of: - Answer- Water
vapor
What is the MOST likely indication that an electric water heater lower element has
failed? - Answer- Some hot water, then warm water at all faucets
1. Installed lighting above an existing outdoor pool shall have a height clearance above
the water level of a minimum of - Answer- 12 feet
1. Historically, spaced or skip sheathing has been used for roof decking because it -
Answer- allows for drying of roof material.
1. Where might you expect to find safety glass in a window? - Answer- Less than 18
inches above the floor
, 1. A home inspection agreement is most likely to be interpreted using which law? -
Answer- State
From which component in an split air conditioner does the refrigerant leave as a hot,
high pressure gas? - Answer- Compressor
The ___________ compresses the refrigerant by packing the molecules tightly together
as does a piston in a internal combustion engine which increases pressure and the
refrigerant material. - Answer- Compressor
The device used to detect the electrical current to the electric heater coil is called -
Answer- an ammeter
An _________ measures current flow. A closed circuit allows current to flow. An electric
heater coil uses electricity and you measure the amount of current flow with an
ammeter. - Answer- an ammeter
In which location may NMC cable be installed? - Answer- Run through holes in floor
joists in a crawlspace.
While inspecting a metal framed building, you observe non-metallic sheathed wire
installed through standard cut-outs. Your recommendation should be - Answer- plastic
grommets should be installed.
What is the MINIMUM allowable separation between a masonry chimney and
combustible materials? - Answer- 2 inches
To measure carbon monoxide, you should use a - Answer- CO detector
When installing flexible supply air ducts under a floor joist space, the minimum
requirement for the proper strapping sequence is generally - Answer- 1½" wide and at 4'
spacing.
1. In a subpanel, you are required to - Answer- isolate the neutral bus and conductors
from contacting the panel enclosure
1. A GFCI functions by sensing - Answer- a current imbalance
1. Reversed polarity in a receptacle means - Answer- the hot and neutral conductors
are reversed.
1. Relative humidity is expressed as - Answer- A percentage
1. A common place for steel enamel sinks to rust out and leak is the - Answer- Overflow
channel
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