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NYC Health + Hospitals Utilities Systems
Operator Examination Practice Exam
2026 | 100 Questions & Answers with
Detailed Rationales | Complete Exam
Prep & Study Guide
1. What is the primary purpose of a hospital utilities systems operator?
A. Perform clinical diagnoses
B. Operate, monitor, and maintain building utility systems safely and reliably
C. Manage patient records
D. Dispense medications
**Answer: Operate, monitor, and maintain building utility systems safely and
reliably
Rationale: Utilities systems operators are responsible for the safe operation and
monitoring of systems such as HVAC, steam, chilled water, electrical
distribution, domestic water, and related mechanical equipment.
2. Which utility is most critical for maintaining continuous operation of
essential hospital equipment?
A. Landscaping water
B. Decorative lighting
C. Reliable electrical power
D. Irrigation
,**Answer: Reliable electrical power
Rationale: Hospitals depend on continuous electrical power for life-support
equipment, lighting, communications, medical equipment, fire systems, and
other essential services.
3. What does HVAC stand for?
A. High Voltage Air Control
B. Heating, Ventilation, and Air Conditioning
C. Hospital Vacuum Air Control
D. Heat Valve Adjustment Control
**Answer: Heating, Ventilation, and Air Conditioning
Rationale: HVAC systems control temperature, humidity, air movement,
ventilation, and indoor environmental conditions.
4. What is the purpose of a steam pressure-reducing valve?
A. Increase boiler pressure
B. Remove condensate
C. Reduce steam pressure to a controlled downstream pressure
D. Increase water flow
**Answer: Reduce steam pressure to a controlled downstream pressure
Rationale: Pressure-reducing valves lower higher upstream steam pressure to a
suitable and controlled downstream pressure.
5. What instrument is commonly used to measure pressure?
A. Thermometer
B. Tachometer
C. Pressure gauge
D. Hygrometer
**Answer: Pressure gauge
,Rationale: A pressure gauge measures the pressure of gases or liquids within a
system.
6. What does a pump primarily do in a water circulation system?
A. Reduce temperature
B. Move fluid by developing flow and pressure
C. Remove electrical current
D. Generate steam
**Answer: Move fluid by developing flow and pressure
Rationale: Pumps transfer water or other liquids through piping systems by
converting mechanical energy into fluid movement and pressure.
7. What is cavitation in a centrifugal pump?
A. Excessive electrical voltage
B. Formation and collapse of vapor bubbles within the pump
C. Complete loss of lubrication
D. Excessive discharge temperature only
**Answer: Formation and collapse of vapor bubbles within the pump
Rationale: Cavitation occurs when local fluid pressure falls below vapor
pressure, causing bubbles that can collapse violently and damage pump
components.
8. Which condition can contribute to pump cavitation?
A. Excessive suction pressure
B. Insufficient net positive suction head
C. Low discharge pressure only
D. Clean strainers
**Answer: Insufficient net positive suction head
, Rationale: Inadequate suction conditions can cause the liquid to vaporize at the
pump inlet, resulting in cavitation.
9. What is the function of a strainer in a piping system?
A. Increase voltage
B. Remove debris from flowing fluid
C. Increase steam temperature
D. Measure pressure
**Answer: Remove debris from flowing fluid
Rationale: Strainers protect pumps, valves, heat exchangers, and other
components from particulate contamination.
10.What is the purpose of a heat exchanger?
A. Convert electricity directly into pressure
B. Transfer heat between fluids without normally mixing them
C. Remove all water from a system
D. Increase electrical resistance
**Answer: Transfer heat between fluids without normally mixing them
Rationale: Heat exchangers transfer thermal energy between separate fluid
streams through conductive surfaces.
11.Which device is commonly used to measure temperature?
A. Manometer
B. Flowmeter
C. Thermometer
D. Ammeter
**Answer: Thermometer
Rationale: A thermometer measures temperature and may be used to monitor
water, steam, air, or equipment temperatures.
NYC Health + Hospitals Utilities Systems
Operator Examination Practice Exam
2026 | 100 Questions & Answers with
Detailed Rationales | Complete Exam
Prep & Study Guide
1. What is the primary purpose of a hospital utilities systems operator?
A. Perform clinical diagnoses
B. Operate, monitor, and maintain building utility systems safely and reliably
C. Manage patient records
D. Dispense medications
**Answer: Operate, monitor, and maintain building utility systems safely and
reliably
Rationale: Utilities systems operators are responsible for the safe operation and
monitoring of systems such as HVAC, steam, chilled water, electrical
distribution, domestic water, and related mechanical equipment.
2. Which utility is most critical for maintaining continuous operation of
essential hospital equipment?
A. Landscaping water
B. Decorative lighting
C. Reliable electrical power
D. Irrigation
,**Answer: Reliable electrical power
Rationale: Hospitals depend on continuous electrical power for life-support
equipment, lighting, communications, medical equipment, fire systems, and
other essential services.
3. What does HVAC stand for?
A. High Voltage Air Control
B. Heating, Ventilation, and Air Conditioning
C. Hospital Vacuum Air Control
D. Heat Valve Adjustment Control
**Answer: Heating, Ventilation, and Air Conditioning
Rationale: HVAC systems control temperature, humidity, air movement,
ventilation, and indoor environmental conditions.
4. What is the purpose of a steam pressure-reducing valve?
A. Increase boiler pressure
B. Remove condensate
C. Reduce steam pressure to a controlled downstream pressure
D. Increase water flow
**Answer: Reduce steam pressure to a controlled downstream pressure
Rationale: Pressure-reducing valves lower higher upstream steam pressure to a
suitable and controlled downstream pressure.
5. What instrument is commonly used to measure pressure?
A. Thermometer
B. Tachometer
C. Pressure gauge
D. Hygrometer
**Answer: Pressure gauge
,Rationale: A pressure gauge measures the pressure of gases or liquids within a
system.
6. What does a pump primarily do in a water circulation system?
A. Reduce temperature
B. Move fluid by developing flow and pressure
C. Remove electrical current
D. Generate steam
**Answer: Move fluid by developing flow and pressure
Rationale: Pumps transfer water or other liquids through piping systems by
converting mechanical energy into fluid movement and pressure.
7. What is cavitation in a centrifugal pump?
A. Excessive electrical voltage
B. Formation and collapse of vapor bubbles within the pump
C. Complete loss of lubrication
D. Excessive discharge temperature only
**Answer: Formation and collapse of vapor bubbles within the pump
Rationale: Cavitation occurs when local fluid pressure falls below vapor
pressure, causing bubbles that can collapse violently and damage pump
components.
8. Which condition can contribute to pump cavitation?
A. Excessive suction pressure
B. Insufficient net positive suction head
C. Low discharge pressure only
D. Clean strainers
**Answer: Insufficient net positive suction head
, Rationale: Inadequate suction conditions can cause the liquid to vaporize at the
pump inlet, resulting in cavitation.
9. What is the function of a strainer in a piping system?
A. Increase voltage
B. Remove debris from flowing fluid
C. Increase steam temperature
D. Measure pressure
**Answer: Remove debris from flowing fluid
Rationale: Strainers protect pumps, valves, heat exchangers, and other
components from particulate contamination.
10.What is the purpose of a heat exchanger?
A. Convert electricity directly into pressure
B. Transfer heat between fluids without normally mixing them
C. Remove all water from a system
D. Increase electrical resistance
**Answer: Transfer heat between fluids without normally mixing them
Rationale: Heat exchangers transfer thermal energy between separate fluid
streams through conductive surfaces.
11.Which device is commonly used to measure temperature?
A. Manometer
B. Flowmeter
C. Thermometer
D. Ammeter
**Answer: Thermometer
Rationale: A thermometer measures temperature and may be used to monitor
water, steam, air, or equipment temperatures.
