2025 Electrical Exam Questions and Answers Graded A+
1. 15 ohm resistance: A 15 ohm resistance carrying 20 amperes of
current uses 6000 watts of power.
2. #14-2 with ground Romex: When using a #14-2 with ground
Romex, the ground will not carry current under normal operation.
3. Stranded wire vs solid wire: As compared with solid wire, stranded
wire of the same gauge size is larger in total diameter.
4. Type of AC system: The type of AC system commonly used to
supply both commercial light and power is the 3-phase, 4-wire.
5. Soldered connection: To make a good soldered connection
between two stranded wires, it is least important to apply solder to
each strand before twisting the two wires together.
6. Condulet-type fitting: The most important reason for using a
condulet-type fitting in preference to making a bend in a one inch
conduit is to make wire pulling easier.
7. Skinning a small wire: When skinning a small wire, the insulation
should be 'penciled down' rather than cut square to decrease the
danger of nicking the wire.
8. Rubber insulation damage: Rubber insulation on an electrical
conductor would quickly be damaged by continuous contact with oil.
9. Tester using an ordinary light bulb: A tester using an ordinary light
bulb is commonly used to test for grounds on 120 volts circuits.
10. Pigtails on brushes: Pigtails are used on brushes to make a good
electrical connection.
,11. Fluorescent lamps: With respect to fluorescent lamps it is correct to
state that the filaments seldom burns out.
12. Energy storage device: A stores energy in much the same
manner as a spring stores mechanical energy.
13. Overcurrent trip unit: An overcurrent trip unit of a circuit shall be
connected in series with each ungrounded conductor.
14. Festoon lighting: lighting is a string of outdoor lights
suspended between two points.
15. Ampacity effectors: Something that would affect the ampacity of a
conductor would be temperature.
16. Alternating currents adjustment: Alternating currents may be
increased or decreased by means of a transformer.
17. Fixtures in suspended ceilings: Fixtures supported by the framing
members of suspended ceiling systems shall be securely fastened to
the ceiling framing member by mechanical means such as bolts or
screws.
18. Highest electrical resistance: d. Paper
19. Conductor sizes: b. In AWG or in circular mils
20. Not a type of file: c. Tubular
21. Oil in transformers: c. Cool and insulate the transformer
22. Brushes in fractional horsepower motors: c. Carbon
23. First aid for fright from falling: b. Cover the person and keep the person
warm
24. First aid for acid burns: c. Water and apply Vaseline
25. Motor that will not operate on DC: d. Squirrel cage
, 26. Grounding type receptacles: a. 15 and 20 ampere branch circuits
27. Conductors in metal enclosures: d. I, II and III
28. AC to DC converter: d. Rectifier
29. Undesirable steel measuring tape reason: d. magnetic effect
30. Ability to permit flow of electrons: d. Conductance
31. Automatic operation influence: d. I, II and III
32. Definition of a fitting: d. Part of a wiring system that is intended
primarily to perform a mechanical function
33. Neutral conductor: d. Carries the unbalanced current
34. Not easily moved appliance: d. Stationary
35. Wiring installation requirement: b. It is free of shorts and
unintentional grounds
36. Rosin as a flux: d. A better conductor
37. Utilization equipment: Equipment which utilizes energy for
mechanical, chemical.
38. Cutting fluid: Used when threading conduit to improve the finish of
the thread.
39. Condition of the charger of a lead acid battery: Best indicated by the
specific gravity.
40. Important point in operation of transformers: Temperature.
41. Electrical equipment mounting: Wooden plugs driven into holes in
masonry, concrete, or plaster shall not be used.
42. Mica in electrical construction: Commonly used for commutator bar
separa- tors.
43. Fuse becoming hot under normal load: A probable cause is
1. 15 ohm resistance: A 15 ohm resistance carrying 20 amperes of
current uses 6000 watts of power.
2. #14-2 with ground Romex: When using a #14-2 with ground
Romex, the ground will not carry current under normal operation.
3. Stranded wire vs solid wire: As compared with solid wire, stranded
wire of the same gauge size is larger in total diameter.
4. Type of AC system: The type of AC system commonly used to
supply both commercial light and power is the 3-phase, 4-wire.
5. Soldered connection: To make a good soldered connection
between two stranded wires, it is least important to apply solder to
each strand before twisting the two wires together.
6. Condulet-type fitting: The most important reason for using a
condulet-type fitting in preference to making a bend in a one inch
conduit is to make wire pulling easier.
7. Skinning a small wire: When skinning a small wire, the insulation
should be 'penciled down' rather than cut square to decrease the
danger of nicking the wire.
8. Rubber insulation damage: Rubber insulation on an electrical
conductor would quickly be damaged by continuous contact with oil.
9. Tester using an ordinary light bulb: A tester using an ordinary light
bulb is commonly used to test for grounds on 120 volts circuits.
10. Pigtails on brushes: Pigtails are used on brushes to make a good
electrical connection.
,11. Fluorescent lamps: With respect to fluorescent lamps it is correct to
state that the filaments seldom burns out.
12. Energy storage device: A stores energy in much the same
manner as a spring stores mechanical energy.
13. Overcurrent trip unit: An overcurrent trip unit of a circuit shall be
connected in series with each ungrounded conductor.
14. Festoon lighting: lighting is a string of outdoor lights
suspended between two points.
15. Ampacity effectors: Something that would affect the ampacity of a
conductor would be temperature.
16. Alternating currents adjustment: Alternating currents may be
increased or decreased by means of a transformer.
17. Fixtures in suspended ceilings: Fixtures supported by the framing
members of suspended ceiling systems shall be securely fastened to
the ceiling framing member by mechanical means such as bolts or
screws.
18. Highest electrical resistance: d. Paper
19. Conductor sizes: b. In AWG or in circular mils
20. Not a type of file: c. Tubular
21. Oil in transformers: c. Cool and insulate the transformer
22. Brushes in fractional horsepower motors: c. Carbon
23. First aid for fright from falling: b. Cover the person and keep the person
warm
24. First aid for acid burns: c. Water and apply Vaseline
25. Motor that will not operate on DC: d. Squirrel cage
, 26. Grounding type receptacles: a. 15 and 20 ampere branch circuits
27. Conductors in metal enclosures: d. I, II and III
28. AC to DC converter: d. Rectifier
29. Undesirable steel measuring tape reason: d. magnetic effect
30. Ability to permit flow of electrons: d. Conductance
31. Automatic operation influence: d. I, II and III
32. Definition of a fitting: d. Part of a wiring system that is intended
primarily to perform a mechanical function
33. Neutral conductor: d. Carries the unbalanced current
34. Not easily moved appliance: d. Stationary
35. Wiring installation requirement: b. It is free of shorts and
unintentional grounds
36. Rosin as a flux: d. A better conductor
37. Utilization equipment: Equipment which utilizes energy for
mechanical, chemical.
38. Cutting fluid: Used when threading conduit to improve the finish of
the thread.
39. Condition of the charger of a lead acid battery: Best indicated by the
specific gravity.
40. Important point in operation of transformers: Temperature.
41. Electrical equipment mounting: Wooden plugs driven into holes in
masonry, concrete, or plaster shall not be used.
42. Mica in electrical construction: Commonly used for commutator bar
separa- tors.
43. Fuse becoming hot under normal load: A probable cause is
