Exam (elaborations)
CM 411 MIDTERM QUESTIONS AND ANSWERS 2024
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CM 411 MIDTERM QUESTIONS AND ANSWERS 2024
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CM 411 MIDTERMA ______ is a short groove that indicates the amount of insulation that must be
removed from a wire so the wire can be properly inserted into a switch. -
ANSWERS-strip gauge
A ________ receptacle is a type of receptacle in which the size of the connection
slots determines the plug connection. - ANSWERS-polarized
A ________ receptacle is a standard receptacle that has had the tab between the
two brass-colored (hot) terminal screws removed. - ANSWERS-split-wired
_______ is a type of cable that consists of three insulated electrical conductors
held together and protected by a strong plastic jacket. - ANSWERS-Nonmetallic-
sheathed cable
The 14 in a cable marked 14/2 indicates: - ANSWERS-the size of the wire
When securing power cables to a device at least ______ inches of wire must
extend beyond the bottom of the box to allow enough wire for making
connections to receptacle switches - ANSWERS-8
______ is a light-gauge electrical raceway often referred to as thin-wall conduit. -
ANSWERS-electrical metallic tubing
, Type _________ cable is a nonmetallic-sheathed cable that has the conductors
enclosed within a corrosion-resistant, nonmetallic jacket. - ANSWERS-NMC
From your power plan take-off, what type(s) of conduit was/were used? -
ANSWERS-PVC, Flexible metal conduit and EMT
From your power plan take-off, what sized wire was used? - ANSWERS-12 AWG
From your telecommunications take-off assignment, what were the
communication wires? - ANSWERS-cat 6
From your telecommunications take-off assignment, what was the size and type
of conduit? - ANSWERS-depends on location/number of jacks
From your power plan take-off, how many neutral conductors were used for the
electrical home-runs? - ANSWERS-one
Power factor: - ANSWERS-tells us how much of the supplied power is actually
being used.
Assume that you have a series of circuit with forty-eight, 10 ohm lights connected
to a 120 volt source. The voltage (in volts) across each light is: - ANSWERS-2.5
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