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CFESA ELECTRICAL ACTUAL EXAM NEWEST
QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY
GRADED A+||BRAND NEW VERSION!!
- A capacitor start motor should be used in what applications?
Correct answer: Used for heavy-duty applications requiring
high starting torque, such as refrigerator compressors, pumps, and conveyors.
- You have a 120 V super warmer that is not heating. Your
meter reads 120 V from each side of the element to the ground.The voltage across the element reads 0 V. What is the issue?
Correct answer: Open neutral after the element.
- If you check each side of an element terminal to ground and
read 120 V, does that mean the element has voltage to it?
Correct answer: No, measure voltage across the load, not from
each terminal to ground.
- A ground fault breaker is considered more reliable than a
ground fault receptacle. True or False?
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Correct answer: True.
5. A thermostat has a differential of 5°F. This means:
Correct answer: The temperature needs to drop 5 degrees
below the set point before the heating system turns on.
6. Wall receptacles failed due to:
Correct answer: Loose wires, overloaded circuits (tripped
breakers), damaged internal components, wear and tear from frequent use, exposure to moisture, or physical damage which can lead to poor connections or short circuits.
- It is still possible to get shocked by touching the casing of a
piece of equipment if it is properly grounded. True or False?
Correct answer: False.
8. Before working on electrical equipment with the power on:
Correct answer: Proper PPE must be worn, for example,
linesman’s gloves.
9. A 240 V range connected to a 208 V power supply will:
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Correct answer: Likely operate with reduced power and
potentially experience issues like longer cooking times, decreased heating efficiency, and could potentially be damaged over time.
- AC power has a negative and a positive line. True or False?
Correct answer: False, it has a hot and a neutral.
- Which formula should you use to determine the power
consumed by a 15 ohm heater element with 8 A of current flowing through it?
Correct answer: P = I² × R.
- A hot line in an AC power supply contains 120 V. True or
False?
Correct answer: False, 120 volts is the difference in potential
between the hot line and neutral.
- On the Ohm’s Law wheel, what does P stand for?
Correct answer: Power.
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14. Line voltage is the potential difference between:
Correct answer: Any two lines or phases in a three-phase
electrical system; essentially, the voltage measured between two live wires in a power circuit.
15. Prefix Milli means:
Correct answer: 1/1000.
- The total resistance of a unit with 230 ohm heating elements
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