LADWP Electrical Craft Helper Exam Study
Guide 2026/2027 Accurate Questions With
Correct Detailed Solutions || 100%
Guaranteed Pass Newest Version
Description: A 200-question multiple-choice practice exam covering electrical
fundamentals, safety, tools, mathematics, mechanical concepts, and LADWP job-related
knowledge for the Electrical Craft Helper position.
Keywords: LADWP, Electrical Craft Helper, exam prep, electrical safety, tools, Ohm's law,
transformers, motors, NEC, utility work
1. What does LADWP stand for?
A. Los Angeles Department of Water and Power ✅
B. Los Angeles Division of Water and Power
C. Los Angeles Department of Works and Power
D. Lower Angeles Department of Water and Power
2. Which of the following is a primary function of an Electrical Craft Helper?
A. Designing electrical transmission systems
B. Assisting skilled electrical workers with installation, maintenance, and repair ✅
C. Approving electrical engineering plans
D. Managing utility billing systems
,3. What is the unit of electrical current?
A. Volt
B. Watt
C. Ampere ✅
D. Ohm
4. What is the unit of electrical resistance?
A. Ampere
B. Ohm ✅
C. Volt
D. Watt
5. Ohm's Law states that voltage equals:
A. Current divided by resistance
B. Current times resistance ✅
C. Resistance divided by current
D. Power times current
6. What is the unit of electrical power?
A. Volt
B. Ohm
C. Ampere
D. Watt ✅
7. Which of the following materials is the best conductor of electricity?
A. Rubber
B. Copper ✅
C. Glass
D. Wood
8. Which of the following is an insulator?
A. Aluminum
B. Copper
,C. Rubber ✅
D. Silver
9. What does AC stand for in electrical terms?
A. Alternating Current ✅
B. Amplified Current
C. Applied Current
D. Active Conductor
10. What does DC stand for in electrical terms?
A. Dual Current
B. Direct Current ✅
C. Dynamic Current
D. Delayed Current
11. What is the typical frequency of AC power in the United States?
A. 50 Hz
B. 60 Hz ✅
C. 100 Hz
D. 120 Hz
12. What color wire is typically used for the ground in a standard electrical system?
A. Black
B. White
C. Green ✅
D. Red
13. In a standard U.S. electrical system, the black wire is usually:
A. Neutral
B. Ground
C. Hot/live ✅
D. Grounded conductor
, 14. In a standard U.S. electrical system, the white wire is usually:
A. Hot
B. Neutral ✅
C. Ground
D. Live
15. What is the purpose of a circuit breaker?
A. To increase voltage
B. To protect circuits from overload by interrupting current ✅
C. To store electrical energy
D. To convert AC to DC
16. What is the purpose of a fuse?
A. To increase current flow
B. To protect circuits by melting when current is excessive ✅
C. To regulate voltage
D. To store charge
17. Which tool is used to measure electrical current?
A. Voltmeter
B. Ammeter ✅
C. Ohmmeter
D. Wattmeter
18. Which tool is used to measure voltage?
A. Ammeter
B. Voltmeter ✅
C. Ohmmeter
D. Galvanometer
19. Which tool is used to measure resistance?
A. Voltmeter
B. Ammeter
Guide 2026/2027 Accurate Questions With
Correct Detailed Solutions || 100%
Guaranteed Pass Newest Version
Description: A 200-question multiple-choice practice exam covering electrical
fundamentals, safety, tools, mathematics, mechanical concepts, and LADWP job-related
knowledge for the Electrical Craft Helper position.
Keywords: LADWP, Electrical Craft Helper, exam prep, electrical safety, tools, Ohm's law,
transformers, motors, NEC, utility work
1. What does LADWP stand for?
A. Los Angeles Department of Water and Power ✅
B. Los Angeles Division of Water and Power
C. Los Angeles Department of Works and Power
D. Lower Angeles Department of Water and Power
2. Which of the following is a primary function of an Electrical Craft Helper?
A. Designing electrical transmission systems
B. Assisting skilled electrical workers with installation, maintenance, and repair ✅
C. Approving electrical engineering plans
D. Managing utility billing systems
,3. What is the unit of electrical current?
A. Volt
B. Watt
C. Ampere ✅
D. Ohm
4. What is the unit of electrical resistance?
A. Ampere
B. Ohm ✅
C. Volt
D. Watt
5. Ohm's Law states that voltage equals:
A. Current divided by resistance
B. Current times resistance ✅
C. Resistance divided by current
D. Power times current
6. What is the unit of electrical power?
A. Volt
B. Ohm
C. Ampere
D. Watt ✅
7. Which of the following materials is the best conductor of electricity?
A. Rubber
B. Copper ✅
C. Glass
D. Wood
8. Which of the following is an insulator?
A. Aluminum
B. Copper
,C. Rubber ✅
D. Silver
9. What does AC stand for in electrical terms?
A. Alternating Current ✅
B. Amplified Current
C. Applied Current
D. Active Conductor
10. What does DC stand for in electrical terms?
A. Dual Current
B. Direct Current ✅
C. Dynamic Current
D. Delayed Current
11. What is the typical frequency of AC power in the United States?
A. 50 Hz
B. 60 Hz ✅
C. 100 Hz
D. 120 Hz
12. What color wire is typically used for the ground in a standard electrical system?
A. Black
B. White
C. Green ✅
D. Red
13. In a standard U.S. electrical system, the black wire is usually:
A. Neutral
B. Ground
C. Hot/live ✅
D. Grounded conductor
, 14. In a standard U.S. electrical system, the white wire is usually:
A. Hot
B. Neutral ✅
C. Ground
D. Live
15. What is the purpose of a circuit breaker?
A. To increase voltage
B. To protect circuits from overload by interrupting current ✅
C. To store electrical energy
D. To convert AC to DC
16. What is the purpose of a fuse?
A. To increase current flow
B. To protect circuits by melting when current is excessive ✅
C. To regulate voltage
D. To store charge
17. Which tool is used to measure electrical current?
A. Voltmeter
B. Ammeter ✅
C. Ohmmeter
D. Wattmeter
18. Which tool is used to measure voltage?
A. Ammeter
B. Voltmeter ✅
C. Ohmmeter
D. Galvanometer
19. Which tool is used to measure resistance?
A. Voltmeter
B. Ammeter
