PRACTICE EXAM QUESTIONS AND CORRECT ANSWER
WITH EXPLANATION GRADED A+ STUDY GUIDE LATEST
2026 UPDATE 100% CORRECT
1. The California Electrical Code (CEC) is primarily based on which code?
A. Uniform Plumbing Code
B. National Electrical Code (NEC)
C. International Building Code
D. OSHA standards
Answer: B
Rationale: The CEC is based on the NEC with California amendments.
2. The main purpose of the Electrical Code is to protect:
A. Property value
B. Persons and property from electrical hazards
C. Contractor profits
D. Utility companies
Answer: B
Rationale: Electrical codes ensure safety from shock and fire hazards.
3. A plans examiner reviews electrical plans to ensure:
A. Field installation quality
B. Compliance with CEC requirements
C. Utility billing accuracy
D. Appliance efficiency
Answer: B
Rationale: Plans examiners verify code compliance before permitting.
4. The Authority Having Jurisdiction (AHJ) is typically the:
A. Electrical contractor
B. Building/electrical official
C. Utility company
,D. Homeowner
Answer: B
Rationale: The AHJ enforces code compliance.
5. The NEC is updated every:
A. 1 year
B. 2 years
C. 3 years
D. 5 years
Answer: C
Rationale: NEC is revised every 3 years.
6. When code conflicts exist, the correct interpretation is:
A. Least restrictive
B. Most restrictive requirement
C. Contractor preference
D. Designer preference
Answer: B
Rationale: The most stringent requirement applies.
7. Electrical permits are required for:
A. Minor painting
B. Most electrical installations
C. Furniture installation
D. Landscaping
Answer: B
Rationale: Permits ensure safe electrical work.
8. Construction documents must be reviewed before:
A. Inspection
B. Permit issuance
C. Occupancy
D. Utility connection
, Answer: B
Rationale: Plans must be approved prior to permitting.
9. Electrical codes primarily regulate:
A. Energy pricing
B. Installation safety standards
C. Appliance manufacturing
D. Utility tariffs
Answer: B
Rationale: Focus is safe installation.
10. The CEC is enforced at the local level by:
A. Utility companies
B. Building/electrical inspectors
C. Contractors
D. Manufacturers
Answer: B
Rationale: Local AHJ enforces compliance.
11–20: Definitions & Basic Electrical Concepts
11. Voltage is defined as:
A. Flow of electrons
B. Electrical potential difference
C. Resistance to current
D. Power consumption
Answer: B
Rationale: Voltage is electrical potential.
12. Current is measured in:
A. Volts
B. Ohms
C. Amperes
D. Watts