CERTIFICATION EXAM QUESTIONS AND ORRECT
ANSWERS (VERIFIED ANSWERS) Q&A 2026
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1. Which organization establishes most workplace safety
standards in the United States?
A. EPA
B. OSHA
C. CDC
D. ANSI
*Correct answer: B. OSHA
Rationale: OSHA (Occupational Safety and Health
Administration) sets and enforces workplace safety standards
to reduce hazards and injuries in the workplace.
2. What is the primary purpose of Personal Protective
Equipment (PPE)?
A. Improve worker speed
B. Reduce equipment wear
C. Protect workers from hazards
D. Replace safety training
*Correct answer: C. Protect workers from hazards
,Rationale: PPE is designed to reduce exposure to physical,
chemical, and biological hazards.
3. Which color is commonly used to indicate caution or
potential hazard areas?
A. Blue
B. Green
C. Yellow
D. Purple
*Correct answer: C. Yellow
Rationale: Yellow is widely used in safety signage to indicate
caution, warning, or potential danger.
4. What is the first step before performing any maintenance
task on electrical equipment?
A. Replace the fuse
B. Turn on the equipment
C. Apply lubricant
D. Disconnect power source
*Correct answer: D. Disconnect power source
Rationale: Always isolate and disconnect power to prevent
electrical shock or injury.
,5. What does a preventive maintenance program primarily
aim to do?
A. Increase breakdown repairs
B. Eliminate all repairs
C. Reduce unexpected equipment failures
D. Replace equipment annually
*Correct answer: C. Reduce unexpected equipment failures
Rationale: Preventive maintenance helps detect issues early
and reduce costly breakdowns.
6. Which tool is best suited for tightening or loosening nuts
and bolts?
A. Chisel
B. Wrench
C. Hacksaw
D. File
*Correct answer: B. Wrench
Rationale: Wrenches are designed specifically for gripping and
turning fasteners.
7. What is the function of a circuit breaker?
A. Store electricity
B. Increase voltage
, C. Protect circuits from overload
D. Generate current
*Correct answer: C. Protect circuits from overload
Rationale: Circuit breakers automatically shut off power when
excessive current flows.
8. Which HVAC component removes moisture from air?
A. Compressor
B. Evaporator
C. Dehumidifier coil
D. Thermostat
*Correct answer: B. Evaporator
Rationale: The evaporator coil cools air and removes moisture
through condensation.
9. What is the main purpose of a building work order system?
A. Assign wages
B. Track and manage maintenance tasks
C. Replace supervisors
D. Store inventory only
*Correct answer: B. Track and manage maintenance tasks
Rationale: Work orders organize, assign, and track maintenance
requests and completion.