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TREC-Texas Home Inspector Test: Electrical Questions With Complete verified Solution
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TREC-Texas Home Inspector Test: Electrical Questions With Complete verified Solution Aluminum wiring is not recommended on most homes under new construction. That is because? The wire oxidizes which acts as an insulator that can increase the heat and may melt the insulation. Aluminum wire must...

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  • January 21, 2024
  • 10
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

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  • trec texas home inspector test electrical questio

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  • TREC-Texas Home Inspector
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TREC-Texas Home Inspector Test: Electrical
Questions With Complete verified Solution

Aluminum wiring is not recommended on most homes under new construction.
That is because?
The wire oxidizes which acts as an insulator that can increase the heat and may melt
the insulation.
Aluminum wire must have something that acts as an insulator rather than
conductor of electricity.
An antioxidant. It also decreases the likelihood of arcing.
An inspector inspects a house built in 1955. He finds a wire that has a silver
coating on it. What type of wire is it?
Zinc coated wire/ nickel coated wire. Aluminum wire was not used in homes until around
1960.
What is the minimum size wire that can be used as a grounding electrode?
#6 Copper AWG
What is the maximum height a breaker can be according to the NEC?
6 ft 7 inches
How many amps are required to trip a GFCI?
5 to 8 milliamps
How do you test a GFCI receptacle?
A separate GFCI testing device
Define the purpose of a circuit breaker.
It is designed to interrupt the flow of electricity.
What is the longest length of plug and cord you would expect to find on an
appliance with proper receptacle locations/spacing?
6 ft
In a bathroom, how close to the sink must a receptacle on the wall be?
Within 3 feet of the sink.

, If you saw an uncovered incandescent light in a closet what would you write on
your report?
'in need of repair'. Uncovered incandescent light fixtures in a closet are not allowed.
Covered incandescednt light fixtures must have 12'' of clearance from any shelving
capable of being used for storage.
How deep must a ground rod be driven into the ground?
8 ft
A wet bar counter receptacle must be GFCI protected within ___ feet of the sink?
6 ft
Ground rods are also referred to as ___.
Electrodes
What is the working space or clearances in front of an electrical panel?
30 inches wide by 3 feet deep (to the front).
What is the purpose of a GFCI?
A GFCI will reduce the shock hazard.
An inspector finds a 3-pronged outlet in a basement with 2-wire service. He
should advise the customer that:
it is 'in need of repair' and should be replaced with a GFCI outlet.
Three wires coming into a home is ____ volts.
240
The maximum number of throws to disconnect all electrical power on a service
panel to a dwelling is _____ throws.
6
What is the minimum service size recommended by the NEC?
100 amps for a single-family dwelling
What is the minimum voltage that must be protected?
50 volts
125% rule rating for amp breakers:
Divide the total watts by volts; multiply that number by 125% to arrive at the total
required amps. It gives allowance to a 'surge' when an appliance is starting.

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