California Roadway Lighting Technician
Certification Exam Questions And
Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
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1. What is the typical voltage used for high-pressure sodium (HPS)
roadway lighting systems?
A. 12V
B. 240V
C. 480V
D. 120V
240V is commonly used for HPS lighting to reduce current draw and allow
for longer wire runs.
2. Which of the following is NOT a type of roadway luminaire?
A. Cobrahead
B. Incandescent globe
C. Shoebox
D. Teardrop
Incandescent globes are used in decorative or indoor settings, not for
roadway lighting.
,3. Which material is most commonly used for overhead lighting poles?
A. Wood
B. Plastic
C. Steel
D. Fiberglass
Steel is durable and strong, making it suitable for supporting roadway
lighting fixtures.
4. What is the main purpose of a photoelectric control in roadway lighting?
A. Increase luminaire brightness
B. Monitor traffic flow
C. Automatically switch lights on/off based on daylight
D. Control lamp color temperature
Photocells help conserve energy by turning lights on at dusk and off at
dawn.
5. What type of lamp is known for its bluish-white light and energy
efficiency?
A. High-pressure sodium
B. LED
C. Mercury vapor
D. Metal halide
LEDs produce cool white light and are highly energy efficient.
6. The National Electrical Code (NEC) requires that lighting circuits be
grounded to prevent:
A. Lamp flicker
B. Electrical shock and fire
C. Color shift
D. Noise pollution
Grounding protects people and equipment from electrical faults.
, 7. What does "IES" stand for in lighting design?
A. International Electrical Systems
B. Illuminated Engineering Structures
C. Illuminating Engineering Society
D. Institute of Electrical Studies
The Illuminating Engineering Society sets standards for lighting quality and
safety.
8. What type of lighting distribution is used for narrow roadways?
A. Type I
B. Type II
C. Type III
D. Type V
Type I provides a long, narrow light pattern ideal for paths or narrow
roadways.
9. Which tool is used to measure the light output of a lamp?
A. Megger
B. Light meter
C. Clamp meter
D. Voltage tester
Light meters are used to measure illumination in foot-candles or lux.
10. In California, who has jurisdiction over electrical safety standards in
public works?
A. OSHA only
B. NEC only
C. California Division of Occupational Safety and Health (Cal/OSHA)
D. Department of Energy
Cal/OSHA enforces job safety standards, including electrical safety, for
public infrastructure projects.
Certification Exam Questions And
Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
Download Pdf
1. What is the typical voltage used for high-pressure sodium (HPS)
roadway lighting systems?
A. 12V
B. 240V
C. 480V
D. 120V
240V is commonly used for HPS lighting to reduce current draw and allow
for longer wire runs.
2. Which of the following is NOT a type of roadway luminaire?
A. Cobrahead
B. Incandescent globe
C. Shoebox
D. Teardrop
Incandescent globes are used in decorative or indoor settings, not for
roadway lighting.
,3. Which material is most commonly used for overhead lighting poles?
A. Wood
B. Plastic
C. Steel
D. Fiberglass
Steel is durable and strong, making it suitable for supporting roadway
lighting fixtures.
4. What is the main purpose of a photoelectric control in roadway lighting?
A. Increase luminaire brightness
B. Monitor traffic flow
C. Automatically switch lights on/off based on daylight
D. Control lamp color temperature
Photocells help conserve energy by turning lights on at dusk and off at
dawn.
5. What type of lamp is known for its bluish-white light and energy
efficiency?
A. High-pressure sodium
B. LED
C. Mercury vapor
D. Metal halide
LEDs produce cool white light and are highly energy efficient.
6. The National Electrical Code (NEC) requires that lighting circuits be
grounded to prevent:
A. Lamp flicker
B. Electrical shock and fire
C. Color shift
D. Noise pollution
Grounding protects people and equipment from electrical faults.
, 7. What does "IES" stand for in lighting design?
A. International Electrical Systems
B. Illuminated Engineering Structures
C. Illuminating Engineering Society
D. Institute of Electrical Studies
The Illuminating Engineering Society sets standards for lighting quality and
safety.
8. What type of lighting distribution is used for narrow roadways?
A. Type I
B. Type II
C. Type III
D. Type V
Type I provides a long, narrow light pattern ideal for paths or narrow
roadways.
9. Which tool is used to measure the light output of a lamp?
A. Megger
B. Light meter
C. Clamp meter
D. Voltage tester
Light meters are used to measure illumination in foot-candles or lux.
10. In California, who has jurisdiction over electrical safety standards in
public works?
A. OSHA only
B. NEC only
C. California Division of Occupational Safety and Health (Cal/OSHA)
D. Department of Energy
Cal/OSHA enforces job safety standards, including electrical safety, for
public infrastructure projects.
