Frequently Tested Questions With ELABORATED 100% Correct COMPLETE SOLUTIONS
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The unit for the measure of electrical power is -
(a) Amps
(b) Watts B
(c) Joules
(d) kWh
Ohm's Law, the relationship between voltage, current, and
resistance in a simple circuit, states -
(a) V=IR
(b) A
I=VR
(c) R=VI
(d) R=I/V
You notice rust in the service panel. Which of the following
may be the cause?
No drip loop
(a) D
(b) Undersized conduit
(c) Damaged masthead
(d) Both (a) and (c)
The main service fuses have been installed with the labels
facing backward, not allowing you to read their rating. No
other markings are visible. You should -
(a) Turn ott the house power and remove a fuse to check
its rating.
(b) Measure the diameter of the fuse body to determine C
its rating.
(c) Report that the main service fuse rating was not deter-
minable.
(d) Carefully insert your inspection mirror until the label
is visible, then read the rating from the label.
In most areas, for what distance can service entrance wires
run inside the building before going into the service box,
, ELECTRICAL 200 Comprehensive Resource To Help You Ace 2026-2027 Exams Includes
Frequently Tested Questions With ELABORATED 100% Correct COMPLETE SOLUTIONS
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without special permission?
(a) 5 feet.
(b) 10 feet, if in conduit. C
(c) 0 feet, or as short as possible.
(d) Maximum of 3 feet.
What is linking?
(a) Linking ensures that light switches only operate the
fixtures installed in the same room.
(b) Linking is the same as bonding. C
(c) Linking ensures that two fuses or circuit breakers are
disconnected at the same time.
(d) Linking refers to connections made in a junction box.
Subpanels are -
(a) Prohibited in bathrooms.
(b) Prohibited in clothes closets. D
(c) Prohibited in garages.
(d) Both a. and b.
In a distribution panel, a black wire and a red wire are
connected to separate breakers that are four breakers
apart, on the same bus bar. Both wires are part of the same
cable. The neutral from the cable connects to the neutral
bus. The potential problem with this arrangement is - D
(a) The 240V appliance may not operate properly.
(b) Breakers may not be linked.
(c) The neutral wire may overheat.
(d) All of the above.
In general, modern 120V circuits can accommodate how
many outlets and/or light fixtures?
D
(a) 6
(b) 8
, (c) 10
(d) 12
A 14 gauge copper wire is protected by a 20-amp fuse.
You should report that -
(a) This is a defect, and recommend improvement.
(b) This is always allowable. A
(c) This indicates poor wiring.
(d) This may be acceptable, depending on what the circuit
load is.
A multi-wire circuit has -
(a) Protection from circuit breakers, not fuses.
(b) Two neutral wires. D
(c) Two ground wires.
(d) A red and a black wire.
Common branch circuit wire materials include all of these
except -
Copper.
(a) D
(b) Aluminum.
(c) Copper clad aluminum.
(d) Silver-dipped copper.
NMD cable is -
(a) Rigid.
(b) Armored. D
(c) Metal clad.
(d) Suitable for indoor use.
Number 10 gauge wires are typically used for all of these
except -
(a) B
Air conditioners.
(b) Clothes dryers.