NYC Health + Hospitals Plant Utilities
Assistant Examination Practice Exam
2026 | 100 Questions & Answers with
Detailed Rationales | Complete Exam
Prep & Study Guide
1. What is the primary responsibility of a Plant Utilities Assistant?
A. Designing hospital buildings
B. Operating and maintaining utility systems and equipment
C. Managing patient care activities
D. Performing medical procedures
Answer: Operating and maintaining utility systems and equipment
Rationale: Plant Utilities Assistants support facility operations by maintaining
and assisting with heating, cooling, electrical, plumbing, and mechanical utility
systems.
2. Which system provides heating to most large buildings?
A. Refrigeration system
B. Boiler system
,C. Fire alarm system
D. Lighting system
Answer: Boiler system
Rationale: Boilers produce steam or hot water used for heating buildings and
supplying other facility needs.
3. What safety device prevents excessive pressure buildup in a boiler?
A. Thermostat
B. Pressure gauge
C. Safety relief valve
D. Flow meter
Answer: Safety relief valve
Rationale: Safety relief valves automatically release pressure when it exceeds
safe operating limits.
4. What is the purpose of a pump in a utility system?
A. To measure temperature
B. To move fluids through piping systems
C. To remove electrical current
D. To control lighting
Answer: To move fluids through piping systems
Rationale: Pumps provide the force needed to circulate water, chemicals, and
other fluids throughout a facility.
5. Which personal protective equipment protects the eyes from hazards?
,A. Gloves
B. Safety glasses
C. Ear plugs
D. Steel-toe boots
Answer: Safety glasses
Rationale: Safety glasses protect workers from flying debris, chemicals, and
other eye hazards.
6. What does HVAC stand for?
A. Heat Voltage Air Control
B. Heating, Ventilation, and Air Conditioning
C. High Volume Air Cooling
D. Heating Valve Adjustment Control
Answer: Heating, Ventilation, and Air Conditioning
Rationale: HVAC systems regulate temperature, air movement, and indoor air
quality.
7. What instrument measures temperature?
A. Thermometer
B. Ammeter
C. Barometer
D. Tachometer
Answer: Thermometer
Rationale: Thermometers measure temperature in mechanical and
environmental systems.
, 8. What is the purpose of preventive maintenance?
A. Increase equipment failures
B. Prevent breakdowns and extend equipment life
C. Eliminate inspections
D. Replace all equipment yearly
Answer: Prevent breakdowns and extend equipment life
Rationale: Preventive maintenance reduces unexpected failures and improves
reliability.
9. What type of energy does an electric motor use?
A. Electrical energy
B. Chemical energy
C. Nuclear energy
D. Solar energy only
Answer: Electrical energy
Rationale: Electric motors convert electrical energy into mechanical motion.
10. Which tool is used to measure electrical current?
A. Voltmeter
B. Ammeter
C. Thermometer
D. Pressure gauge
Answer: Ammeter
Rationale: An ammeter measures electrical current flowing through a circuit.
Assistant Examination Practice Exam
2026 | 100 Questions & Answers with
Detailed Rationales | Complete Exam
Prep & Study Guide
1. What is the primary responsibility of a Plant Utilities Assistant?
A. Designing hospital buildings
B. Operating and maintaining utility systems and equipment
C. Managing patient care activities
D. Performing medical procedures
Answer: Operating and maintaining utility systems and equipment
Rationale: Plant Utilities Assistants support facility operations by maintaining
and assisting with heating, cooling, electrical, plumbing, and mechanical utility
systems.
2. Which system provides heating to most large buildings?
A. Refrigeration system
B. Boiler system
,C. Fire alarm system
D. Lighting system
Answer: Boiler system
Rationale: Boilers produce steam or hot water used for heating buildings and
supplying other facility needs.
3. What safety device prevents excessive pressure buildup in a boiler?
A. Thermostat
B. Pressure gauge
C. Safety relief valve
D. Flow meter
Answer: Safety relief valve
Rationale: Safety relief valves automatically release pressure when it exceeds
safe operating limits.
4. What is the purpose of a pump in a utility system?
A. To measure temperature
B. To move fluids through piping systems
C. To remove electrical current
D. To control lighting
Answer: To move fluids through piping systems
Rationale: Pumps provide the force needed to circulate water, chemicals, and
other fluids throughout a facility.
5. Which personal protective equipment protects the eyes from hazards?
,A. Gloves
B. Safety glasses
C. Ear plugs
D. Steel-toe boots
Answer: Safety glasses
Rationale: Safety glasses protect workers from flying debris, chemicals, and
other eye hazards.
6. What does HVAC stand for?
A. Heat Voltage Air Control
B. Heating, Ventilation, and Air Conditioning
C. High Volume Air Cooling
D. Heating Valve Adjustment Control
Answer: Heating, Ventilation, and Air Conditioning
Rationale: HVAC systems regulate temperature, air movement, and indoor air
quality.
7. What instrument measures temperature?
A. Thermometer
B. Ammeter
C. Barometer
D. Tachometer
Answer: Thermometer
Rationale: Thermometers measure temperature in mechanical and
environmental systems.
, 8. What is the purpose of preventive maintenance?
A. Increase equipment failures
B. Prevent breakdowns and extend equipment life
C. Eliminate inspections
D. Replace all equipment yearly
Answer: Prevent breakdowns and extend equipment life
Rationale: Preventive maintenance reduces unexpected failures and improves
reliability.
9. What type of energy does an electric motor use?
A. Electrical energy
B. Chemical energy
C. Nuclear energy
D. Solar energy only
Answer: Electrical energy
Rationale: Electric motors convert electrical energy into mechanical motion.
10. Which tool is used to measure electrical current?
A. Voltmeter
B. Ammeter
C. Thermometer
D. Pressure gauge
Answer: Ammeter
Rationale: An ammeter measures electrical current flowing through a circuit.
