2 0 2 4 /2025 | © copyright | This work may not be copied for profit gain Excel!
ELECTRICAL TROUBLESHOOTING TPC
210 QUESTIONS AND ANSWERS
2024/2025
On an electrical diagram, a control relay is indicated by the designation...
CR
The NEC requires a fuse to be installed in all ______ conductors
ungrounded
Cross-references to the different locations of limit switches in a diagram are provided by...
arrows next to the symbols line number
A control panel layout shows the...
physical arrangement of all components
A sequence of operation is used with...
an elementary diagram
A riser diagram shows the...
power distribution wiring from input through output
On a blueprint, wall outlets are indicated by a circle with...
a short line drawn to it
1|Page| GradeA+ | 2 0 0 2 5
, 2 0 2 4 /2025 | © copyright | This work may not be copied for profit gain Excel!
In addition to the locations of lighting and lighting panels, lighting diagrams show the locations
of...
telephone outlets
A power installation drawing shows...
only power outlets
The actual location and routing of circuits is shown on a...
wiring diagram
What is most affected by overvoltage?
slow speed motors
The maintained start-stop device provides...
only undervoltage release
What provides both overload protection and short-circuit protection in one unit?
combination motor starter
If a motor stops for no apparent reason and you are called to inspect the motor starter, the
first thing you should check is the...
trip levers on the thermal overload relays
If an electrical machine has several problems, you should correct ______ problem(s) before
trying the machine again.
1|Page| GradeA+ | 2 0 0 2 5
ELECTRICAL TROUBLESHOOTING TPC
210 QUESTIONS AND ANSWERS
2024/2025
On an electrical diagram, a control relay is indicated by the designation...
CR
The NEC requires a fuse to be installed in all ______ conductors
ungrounded
Cross-references to the different locations of limit switches in a diagram are provided by...
arrows next to the symbols line number
A control panel layout shows the...
physical arrangement of all components
A sequence of operation is used with...
an elementary diagram
A riser diagram shows the...
power distribution wiring from input through output
On a blueprint, wall outlets are indicated by a circle with...
a short line drawn to it
1|Page| GradeA+ | 2 0 0 2 5
, 2 0 2 4 /2025 | © copyright | This work may not be copied for profit gain Excel!
In addition to the locations of lighting and lighting panels, lighting diagrams show the locations
of...
telephone outlets
A power installation drawing shows...
only power outlets
The actual location and routing of circuits is shown on a...
wiring diagram
What is most affected by overvoltage?
slow speed motors
The maintained start-stop device provides...
only undervoltage release
What provides both overload protection and short-circuit protection in one unit?
combination motor starter
If a motor stops for no apparent reason and you are called to inspect the motor starter, the
first thing you should check is the...
trip levers on the thermal overload relays
If an electrical machine has several problems, you should correct ______ problem(s) before
trying the machine again.
1|Page| GradeA+ | 2 0 0 2 5
