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ELECTRICAL TROUBLESHOOTING TPC 210 EXAM
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ELECTRICAL TROUBLESHOOTING TPC 210 EXAM...
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On an electrical diagram, a control relay is denoted by... - ANSWER CRThe NEC mandates a fuse to be put in all ______ conductors, ANSWER
ungrounded.
Cross-references to the various positions of limit switches in a diagram are
supplied by... - ANSWER arrows next to the symbols' line numbers
A control panel layout displays... - ANSWER physical arrangement of all
components.
A sequence of operations is employed with... - an elementary diagram.
A riser diagram depicts... - ANSWER power distribution wire from input to
output.
On a blueprint, wall outlets are marked by a circle with... - ANSWER a short
line traced to them
Lighting diagrams indicate the positions of lighting and lighting panels, as well
as... - Answer phone outlets
A power installation drawing displays... simply power outlets.
, A wiring diagram depicts the real location and routing of circuits. - ANSWER
What is most vulnerable to overvoltage? - ANSWER: slow-speed motors
The maintained start-stop device provides... - ANSWER undervoltage release.
What offers both overload and short-circuit protection in one unit? - ANSWER:
combo motor starter
If a motor stops for no obvious reason and you are summoned to inspect the
motor starter, the first thing you should look at is the... ANSWER trip levers on
thermal overload relays
If an electrical machine has multiple faults, you should address the problem(s)
before attempting to use it again. - Answer only one.
If you close the connections on a motor controller and observe a potential
difference of zero between the motor terminals, the error is most likely in the... -
ANSWER Controller
Overvoltage, high current, and frequent operation are all possible causes of
_____ magnet coils. - ANSWER burnt or short-circuiting
What is NOT usually connected to a control relay? ANSWER motors
In the electronic timing relay, the time delay assembly is linked in the... -
ANSWER series with the relay coil.
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