NHIE Electrical - Study Session 19
Questions and Answers
Home inspectors report receptacles with reversed polarity as potentially hazardous because: -
Answer✔✔-They increase likelihood of shock at connected equipment.
An underground receptacle may be protected by a GFCI installed - Answer✔✔-on the supply
side of the receptacle
The aluminum wire size that corresponds to a 20 amp breaker is - Answer✔✔-10 AWG
GFCI protection is not REQUIRED for - Answer✔✔-multi-wire branch circuits.
There are three conductors at the weathered. What in the nominal electric voltage? -
Answer✔✔-Single phase, 120/240 volts.
While inspecting a metal framed building, you observe non-metallic sheathed wire installed
through the factory stud cut-outs. your recommendation should be - Answer✔✔-plastic
grommets should be installed
When testing the GFCI test/reset device in the hall bathroom, you discover that the power shuts
off to the outlets in the remaining bathrooms as well. You conclude - Answer✔✔-all these
outlets are properly wired on the same GFCI protected circuit, and no correction is needed.
Electrical receptacles in bathrooms should be - Answer✔✔-GFCI protected.
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Is this bonding jumper necessary for a gas water heater? - Answer✔✔-Yes, bonding jumpers are
required to ensure there is a continuous round path when equipment is removed.
Overhead electrical service should be a MINIMUM of how many feet above the flat roof subject
to foot traffic? - Answer✔✔-8 feet.
How many energized conductors supply 240-volt, 200-amp, single phase electric service? -
Answer✔✔-2
A circuit breaker's job is to - Answer✔✔-protect wiring from an electrical overload.
In which location may NM cable be installed? - Answer✔✔-Run through holes in floor joists in a
crawlspace.
In new construction, a MINIMUM overhead electrical clearances are - Answer✔✔-walkway: 10
feet, roadway: 18 feet, deck: 10 feet
There is a bare incandescent bulb in a closet. What is the best way to report it? - Answer✔✔-
The bulb is a fire hazard.
To ensure there is adequate power for multiple appliances in the home, including central air
conditioning and electric range or water heater, the house should have minimum electrical
service of: - Answer✔✔-100 amps at 240 volts
What is the MINIMUM clearance for overhead conductors above a residential driveway? -
Answer✔✔-12 feet
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