CERTIFICATION EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) Q&A
2026|INSTANT DOWNLOAD PDF
1. What is the primary purpose of preventive maintenance in
building systems?
A. Increase energy consumption
B. Reduce equipment lifespan
C. Prevent unexpected equipment failure
D. Eliminate the need for inspections
Rationale: Preventive maintenance focuses on early servicing
to avoid breakdowns and extend system life.
Correct Answer: C
2. Which system is responsible for regulating indoor air quality
and temperature?
A. Electrical system
B. HVAC system
C. Plumbing system
D. Structural system
Rationale: HVAC systems control heating, ventilation, and air
conditioning.
Correct Answer: B
,3. What is the main function of a circuit breaker in a building?
A. Increase voltage supply
B. Store electrical energy
C. Protect circuits from overload
D. Ground electrical systems
Rationale: Circuit breakers automatically stop current during
overloads.
Correct Answer: C
4. Which material is commonly used for water supply piping in
modern buildings?
A. Wood
B. Copper or PEX
C. Paper
D. Glass
Rationale: Copper and PEX are durable and corrosion-resistant.
Correct Answer: B
5. What does HVAC stand for?
A. Heating, Ventilation, and Air Conditioning
B. High Voltage Air Control
C. Hydraulic Vacuum Air Cooling
D. Heat Vapor Adjustment Circuit
,Rationale: HVAC refers to environmental control systems in
buildings.
Correct Answer: A
6. What is the purpose of a building fire alarm system?
A. Provide entertainment alerts
B. Detect and warn occupants of fire hazards
C. Control HVAC systems
D. Manage electrical loads
Rationale: Fire alarm systems improve life safety by early fire
detection.
Correct Answer: B
7. Which tool is commonly used to measure electrical voltage?
A. Thermometer
B. Multimeter
C. Manometer
D. Hygrometer
Rationale: A multimeter measures voltage, current, and
resistance.
Correct Answer: B
8. What is the main purpose of insulation in buildings?
, A. Increase sound leakage
B. Reduce heat transfer
C. Increase water flow
D. Strengthen wiring
Rationale: Insulation improves energy efficiency by reducing
heat loss/gain.
Correct Answer: B
9. Which component controls water flow in plumbing
systems?
A. Transformer
B. Valve
C. Fuse
D. Compressor
Rationale: Valves regulate or stop water flow in pipes.
Correct Answer: B
10. What is a common sign of HVAC system failure?
A. Consistent airflow
B. Increased efficiency
C. Uneven room temperatures
D. Reduced electricity usage