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Exam (elaborations)

Carson Dunlop – Electrical Questions And Answers With Verified Solutions Latest Updated 2024

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  • EWRB
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  • EWRB

Carson Dunlop – Electrical Questions And Answers With Verified Solutions Latest Updated 2024

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  • October 18, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • voltage volts
  • a short circuit is
  • EWRB
  • EWRB
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Carson Dunlop – Electrical Questions
And Answers With Verified Solutions
Latest Updated 2024
Voltage (volts) = - ANSWER✔✔I (current-amps) X Resistance (ohms)

Power (watts) = - ANSWER✔✔V (volts) X I (current-amps)

For heating purposes
1 kilowatt = - ANSWER✔✔3,412 BTU/hr

A short circuit is .... - ANSWER✔✔when no resistance is present, the current flow
is very large. This blows a fuse or trips a breaker.

Good, Better, Best - electrical conductors - ANSWER✔✔aluminum, copper, silver

poor conductors with high resistance are known as - ANSWER✔✔insulators

the amount of current that flows will be the result of the _______ in the circuit. -
ANSWER✔✔resistance

If 1000 watts is used for one hour, this is known as a _________ -
ANSWER✔✔Kilowatt-Hour

Normal household circuits are designed to carry 15 amps, on a ____ -gauge copper
wire - ANSWER✔✔14

12 guage can carry..... - ANSWER✔✔20 amps

10 guage can carry..... - ANSWER✔✔30 amps

8 guage can carry..... - ANSWER✔✔40 amps

Wires up to #__ gauge are solid (single strand). Larger wires are multi-strand. -
ANSWER✔✔10

, In the 1950's, houses were intended to receive _______ volts. -
ANSWER✔✔110/220

presently, houses are intended to receive _____ volts. - ANSWER✔✔120/240

Typical circuit =
Typical wire guage =
Typical breaker =
Wattage = - ANSWER✔✔120 volts
14
15 amps
1800 watts

A "Time Delay" fuse is a type ___ fuse - ANSWER✔✔D

a ___ type fuse is more sensitive to heat build up around the fuse and will blow
sooner than an ordinary fuse - ANSWER✔✔P

an ___ type fuse has special screw in bases that do not allow incorrect sizes. -
ANSWER✔✔S

nicks or poor connections effectively create a smaller wire, which can cause..... -
ANSWER✔✔overheating or fire

A service wire has three conductors, black, red and
white. Black and red are live with ___ volts each and white is neutral -
ANSWER✔✔120

A drop line must be __ above road, __ above driveway or walkway, ___ above flat
roof, - ANSWER✔✔20 feet
15 feet
8-10 feet

buried wire should be ___ feet under parking or driveways, and ___ feet under
landscaping - ANSWER✔✔3 - 2

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