Ohio Utility Maintenance Worker
Practice Exam Questions And Correct
Answers (Verified Answers) Plus
Rationales 2025|2026 Q&A | Instant
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1. What is the primary purpose of a lockout/tagout procedure?
A. Increase productivity
B. Prevent unauthorized access
C. Protect workers from hazardous energy
D. Reduce energy consumption
Rationale: Lockout/tagout ensures machinery is de-energized before
maintenance to prevent accidental startup and injuries.
2. When working near overhead power lines, what is the minimum safe
distance for utility workers?
A. 3 feet
B. 10 feet
, C. 20 feet
D. 5 feet
Rationale: OSHA requires a minimum clearance of 10 feet from
energized overhead lines to prevent electrocution.
3. Which type of PPE is essential when entering a confined space with
low oxygen?
A. Hard hat
B. Steel-toed boots
C. Self-contained breathing apparatus (SCBA)
D. Safety glasses
Rationale: SCBA provides breathable air in oxygen-deficient
environments, preventing asphyxiation.
4. Which tool is commonly used to measure voltage in a circuit?
A. Wrench
B. Hammer
C. Multimeter
D. Screwdriver
Rationale: A multimeter measures voltage, current, and resistance,
making it essential for electrical testing.
5. What is the function of a water meter?
A. Filter impurities
B. Measure water usage
C. Regulate pressure
, D. Remove chlorine
Rationale: Water meters record the volume of water consumed for
billing and monitoring usage.
6. Which chemical is commonly used to disinfect drinking water?
A. Sodium hydroxide
B. Chlorine
C. Ammonia
D. Sulfuric acid
Rationale: Chlorine kills bacteria and pathogens in water treatment,
ensuring safe drinking water.
7. Which of the following is a symptom of heat exhaustion?
A. Chest pain
B. Broken bones
C. Heavy sweating and weakness
D. Vision loss
Rationale: Heat exhaustion results from prolonged exposure to high
temperatures, causing dehydration, weakness, and sweating.
8. How often should a utility worker inspect fire extinguishers?
A. Monthly
B. Every 5 years
C. Annually
D. Weekly
, Rationale: Annual inspection ensures fire extinguishers are functional
and compliant with safety regulations.
9. A backflow preventer is used to:
A. Increase water pressure
B. Filter sediment
C. Prevent contaminated water from entering the supply
D. Measure flow rate
Rationale: Backflow preventers stop water from flowing backward
into potable systems, protecting public health.
10. Which type of valve is best for shutting off water completely in
an emergency?
A. Gate valve
B. Ball valve
C. Check valve
D. Globe valve
Rationale: Ball valves provide full shutoff with a simple quarter-turn,
making them ideal for emergency isolation.
11. What is the primary purpose of grounding electrical equipment?
A. Improve efficiency
B. Prevent electric shock
C. Reduce noise
D. Increase voltage
Practice Exam Questions And Correct
Answers (Verified Answers) Plus
Rationales 2025|2026 Q&A | Instant
Download Pdf
1. What is the primary purpose of a lockout/tagout procedure?
A. Increase productivity
B. Prevent unauthorized access
C. Protect workers from hazardous energy
D. Reduce energy consumption
Rationale: Lockout/tagout ensures machinery is de-energized before
maintenance to prevent accidental startup and injuries.
2. When working near overhead power lines, what is the minimum safe
distance for utility workers?
A. 3 feet
B. 10 feet
, C. 20 feet
D. 5 feet
Rationale: OSHA requires a minimum clearance of 10 feet from
energized overhead lines to prevent electrocution.
3. Which type of PPE is essential when entering a confined space with
low oxygen?
A. Hard hat
B. Steel-toed boots
C. Self-contained breathing apparatus (SCBA)
D. Safety glasses
Rationale: SCBA provides breathable air in oxygen-deficient
environments, preventing asphyxiation.
4. Which tool is commonly used to measure voltage in a circuit?
A. Wrench
B. Hammer
C. Multimeter
D. Screwdriver
Rationale: A multimeter measures voltage, current, and resistance,
making it essential for electrical testing.
5. What is the function of a water meter?
A. Filter impurities
B. Measure water usage
C. Regulate pressure
, D. Remove chlorine
Rationale: Water meters record the volume of water consumed for
billing and monitoring usage.
6. Which chemical is commonly used to disinfect drinking water?
A. Sodium hydroxide
B. Chlorine
C. Ammonia
D. Sulfuric acid
Rationale: Chlorine kills bacteria and pathogens in water treatment,
ensuring safe drinking water.
7. Which of the following is a symptom of heat exhaustion?
A. Chest pain
B. Broken bones
C. Heavy sweating and weakness
D. Vision loss
Rationale: Heat exhaustion results from prolonged exposure to high
temperatures, causing dehydration, weakness, and sweating.
8. How often should a utility worker inspect fire extinguishers?
A. Monthly
B. Every 5 years
C. Annually
D. Weekly
, Rationale: Annual inspection ensures fire extinguishers are functional
and compliant with safety regulations.
9. A backflow preventer is used to:
A. Increase water pressure
B. Filter sediment
C. Prevent contaminated water from entering the supply
D. Measure flow rate
Rationale: Backflow preventers stop water from flowing backward
into potable systems, protecting public health.
10. Which type of valve is best for shutting off water completely in
an emergency?
A. Gate valve
B. Ball valve
C. Check valve
D. Globe valve
Rationale: Ball valves provide full shutoff with a simple quarter-turn,
making them ideal for emergency isolation.
11. What is the primary purpose of grounding electrical equipment?
A. Improve efficiency
B. Prevent electric shock
C. Reduce noise
D. Increase voltage
