Hawaii Journeyman Electrician Exam
Questions and Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
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1. What is the primary purpose of bonding electrical equipment?
A. To increase voltage
B. To reduce current flow
C. To provide a low-impedance path for fault current
D. To prevent overloading circuits
Rationale: Bonding connects conductive metal parts together and to
the equipment grounding conductor, creating a low-impedance path
that allows overcurrent protective devices to operate quickly during a
fault. This minimizes shock hazards and equipment damage.
2. According to the National Electrical Code (NEC), what is the
minimum working space depth for equipment operating at 0–150
volts to ground under Condition 1?
,A. 24 inches
B. 36 inches
C. 42 inches
D. 48 inches
Rationale: NEC 110.26(A)(1) requires a minimum working clearance
depth of 3 feet (36 inches) for equipment operating at 0–150 volts to
ground where Condition 1 exists, ensuring safe maintenance access.
3. Which conductor is intentionally grounded in a typical single-
phase electrical system?
A. Equipment grounding conductor
B. Grounded (neutral) conductor
C. Bonding jumper
D. Grounding electrode conductor
Rationale: The grounded conductor, commonly called the neutral, is
intentionally connected to ground at the service disconnecting means
to stabilize system voltage and facilitate fault clearing.
4. Which type of fire extinguisher should be used on energized
electrical equipment?
A. Class A
B. Class B
,C. Class C
D. Class D
Rationale: Class C fire extinguishers are designed specifically for
energized electrical fires because they use nonconductive
extinguishing agents that minimize the risk of electrical shock.
5. Electrical continuity is best defined as:
A. Excessive voltage in a circuit
B. A complete path for current flow
C. High resistance in conductors
D. Open circuit conditions
Rationale: Continuity exists when an unbroken electrical path allows
current to flow from the source through the load and back to the
source.
6. What is the primary function of an overcurrent protective device?
A. Increase voltage
B. Protect conductors and equipment from excessive current
C. Reduce grounding resistance
D. Increase power factor
, Rationale: Circuit breakers and fuses interrupt excessive current
caused by overloads or short circuits before conductors overheat or
equipment is damaged.
7. Which NEC chapter primarily contains general installation
requirements?
A. Chapter 4
B. Chapter 1
C. Chapter 6
D. Chapter 8
Rationale: Chapter 1 establishes general requirements including
definitions, wiring rules, approvals, and installation fundamentals that
apply throughout the NEC.
8. Ohm's Law states that current equals:
A. Voltage × Resistance
B. Voltage ÷ Resistance
C. Resistance ÷ Voltage
D. Power ÷ Resistance
Rationale: Ohm's Law is expressed as I = V/R, showing that current
increases with voltage and decreases as resistance increases.
9. Which instrument measures electrical resistance?
Questions and Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
Download Pdf
1. What is the primary purpose of bonding electrical equipment?
A. To increase voltage
B. To reduce current flow
C. To provide a low-impedance path for fault current
D. To prevent overloading circuits
Rationale: Bonding connects conductive metal parts together and to
the equipment grounding conductor, creating a low-impedance path
that allows overcurrent protective devices to operate quickly during a
fault. This minimizes shock hazards and equipment damage.
2. According to the National Electrical Code (NEC), what is the
minimum working space depth for equipment operating at 0–150
volts to ground under Condition 1?
,A. 24 inches
B. 36 inches
C. 42 inches
D. 48 inches
Rationale: NEC 110.26(A)(1) requires a minimum working clearance
depth of 3 feet (36 inches) for equipment operating at 0–150 volts to
ground where Condition 1 exists, ensuring safe maintenance access.
3. Which conductor is intentionally grounded in a typical single-
phase electrical system?
A. Equipment grounding conductor
B. Grounded (neutral) conductor
C. Bonding jumper
D. Grounding electrode conductor
Rationale: The grounded conductor, commonly called the neutral, is
intentionally connected to ground at the service disconnecting means
to stabilize system voltage and facilitate fault clearing.
4. Which type of fire extinguisher should be used on energized
electrical equipment?
A. Class A
B. Class B
,C. Class C
D. Class D
Rationale: Class C fire extinguishers are designed specifically for
energized electrical fires because they use nonconductive
extinguishing agents that minimize the risk of electrical shock.
5. Electrical continuity is best defined as:
A. Excessive voltage in a circuit
B. A complete path for current flow
C. High resistance in conductors
D. Open circuit conditions
Rationale: Continuity exists when an unbroken electrical path allows
current to flow from the source through the load and back to the
source.
6. What is the primary function of an overcurrent protective device?
A. Increase voltage
B. Protect conductors and equipment from excessive current
C. Reduce grounding resistance
D. Increase power factor
, Rationale: Circuit breakers and fuses interrupt excessive current
caused by overloads or short circuits before conductors overheat or
equipment is damaged.
7. Which NEC chapter primarily contains general installation
requirements?
A. Chapter 4
B. Chapter 1
C. Chapter 6
D. Chapter 8
Rationale: Chapter 1 establishes general requirements including
definitions, wiring rules, approvals, and installation fundamentals that
apply throughout the NEC.
8. Ohm's Law states that current equals:
A. Voltage × Resistance
B. Voltage ÷ Resistance
C. Resistance ÷ Voltage
D. Power ÷ Resistance
Rationale: Ohm's Law is expressed as I = V/R, showing that current
increases with voltage and decreases as resistance increases.
9. Which instrument measures electrical resistance?
