ELECTRICAL TROUBLESHOOTING TPC 210
EXAMINATION TEST 2026 FULL QUESTIONS
AND CORRECT ANSWERS
◉The NEC requires a fuse to be installed in all ______ conductors .
Answer: ungrounded
◉Cross-references to the different locations of limit switches in a
diagram are provided by... . Answer: arrows next to the symbols line
number
◉A control panel layout shows the... . Answer: physical arrangement of
all components
◉A sequence of operation is used with... . Answer: an elementary
diagram
◉A riser diagram shows the... . Answer: power distribution wiring
from input through output
◉On a blueprint, wall outlets are indicated by a circle with... . Answer:
a short line drawn to it
, ◉In addition to the locations of lighting and lighting panels, lighting
diagrams show the locations of... . Answer: telephone outlets
◉A power installation drawing shows... . Answer: only power outlets
◉The actual location and routing of circuits is shown on a... . Answer:
wiring diagram
◉What is most affected by overvoltage? . Answer: slow speed motors
◉The maintained start-stop device provides... . Answer: only
undervoltage release
◉What provides both overload protection and short-circuit protection in
one unit? . Answer: 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... . Answer: trip
levers on the thermal overload relays
◉If an electrical machine has several problems, you should correct
______ problem(s) before trying the machine again. . Answer: only one
EXAMINATION TEST 2026 FULL QUESTIONS
AND CORRECT ANSWERS
◉The NEC requires a fuse to be installed in all ______ conductors .
Answer: ungrounded
◉Cross-references to the different locations of limit switches in a
diagram are provided by... . Answer: arrows next to the symbols line
number
◉A control panel layout shows the... . Answer: physical arrangement of
all components
◉A sequence of operation is used with... . Answer: an elementary
diagram
◉A riser diagram shows the... . Answer: power distribution wiring
from input through output
◉On a blueprint, wall outlets are indicated by a circle with... . Answer:
a short line drawn to it
, ◉In addition to the locations of lighting and lighting panels, lighting
diagrams show the locations of... . Answer: telephone outlets
◉A power installation drawing shows... . Answer: only power outlets
◉The actual location and routing of circuits is shown on a... . Answer:
wiring diagram
◉What is most affected by overvoltage? . Answer: slow speed motors
◉The maintained start-stop device provides... . Answer: only
undervoltage release
◉What provides both overload protection and short-circuit protection in
one unit? . Answer: 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... . Answer: trip
levers on the thermal overload relays
◉If an electrical machine has several problems, you should correct
______ problem(s) before trying the machine again. . Answer: only one
