NYC Health Hospitals Senior Power
Plant Operator Exam Practice Questions
And Correct Answers (Verified Answers)
Plus Rationale 2026 Q&A| Instant
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1. A Senior Power Plant Operator working in a large hospital central utility
plant is monitoring a high-pressure steam boiler system during normal
operation. The operator observes that steam pressure is gradually increasing
beyond the normal operating range while the burner firing rate remains
unchanged. Which of the following is the MOST likely cause of this condition
and the appropriate corrective action?
A. The feedwater pump is producing excessive flow and should be
immediately shut down
B. The steam demand has decreased, causing pressure to rise, and the
operator should verify controls and reduce firing rate as needed
C. The safety valve has opened prematurely and should be permanently
disabled
,D. The combustion air fan should be stopped to increase steam production
efficiency
Answer: B
The steam pressure in a boiler is influenced by the balance between steam
generation and steam demand. When demand decreases while firing
continues at the same rate, pressure can rise. The operator should verify
automatic controls, firing rate, and operating conditions while maintaining
safe boiler operation.
2. In a hospital power plant, the Senior Power Plant Operator is
responsible for maintaining reliable steam production for heating,
sterilization, humidification, and other critical services. Which boiler
component is specifically designed to remove dissolved oxygen and
other non-condensable gases from boiler feedwater before it enters
the boiler?
A. Economizer
B. Deaerator
C. Superheater
D. Blowdown separator
Answer: B
A deaerator removes dissolved oxygen and carbon dioxide from feedwater
by heating the water with steam and mechanically separating gases.
,Removing oxygen reduces corrosion within boiler tubes and associated
piping systems.
3. During a routine inspection, a Senior Power Plant Operator notices
that boiler water conductivity has increased above acceptable limits.
Which operating procedure is MOST appropriate to control excessive
dissolved solids in the boiler water?
A. Increase fuel pressure to burn off dissolved solids
B. Perform controlled boiler blowdown according to water treatment
requirements
C. Close all feedwater valves to concentrate the chemicals
D. Increase steam pressure above the rated operating limit
Answer: B
Boiler blowdown removes concentrated dissolved solids and impurities
from boiler water. Proper blowdown control maintains water quality,
prevents scale formation, and protects boiler efficiency and reliability.
4. A power plant operator is preparing to place a large steam turbine
generator into service. Before admitting steam to the turbine, which
condition is MOST important to verify?
A. The turbine casing temperature is completely cold
B. Lubricating oil pressure and turning gear operation are satisfactory
C. The generator breaker is permanently closed
D. The condenser vacuum system is disabled
, Answer: B
Steam turbines require proper lubrication and mechanical preparation
before startup. Adequate oil pressure and proper turning gear operation
prevent bearing damage and excessive thermal stress during startup.
5. A Senior Power Plant Operator receives an alarm indicating low boiler
drum water level. If the condition is not corrected promptly, what is
the PRIMARY hazard?
A. Excessive steam condensation in the building
B. Possible overheating and damage to boiler tubes
C. Reduced electrical generator frequency only
D. Increased cooling tower efficiency
Answer: B
Low boiler water level can expose heating surfaces and allow boiler tubes
to overheat, potentially causing serious equipment failure. Maintaining
proper drum level is one of the most important boiler safety
responsibilities.
6. A hospital power plant uses emergency generators to maintain critical
electrical loads during utility failures. Which device automatically
transfers selected hospital electrical loads from normal utility power to
generator power?
Plant Operator Exam Practice Questions
And Correct Answers (Verified Answers)
Plus Rationale 2026 Q&A| Instant
Download Pdf
1. A Senior Power Plant Operator working in a large hospital central utility
plant is monitoring a high-pressure steam boiler system during normal
operation. The operator observes that steam pressure is gradually increasing
beyond the normal operating range while the burner firing rate remains
unchanged. Which of the following is the MOST likely cause of this condition
and the appropriate corrective action?
A. The feedwater pump is producing excessive flow and should be
immediately shut down
B. The steam demand has decreased, causing pressure to rise, and the
operator should verify controls and reduce firing rate as needed
C. The safety valve has opened prematurely and should be permanently
disabled
,D. The combustion air fan should be stopped to increase steam production
efficiency
Answer: B
The steam pressure in a boiler is influenced by the balance between steam
generation and steam demand. When demand decreases while firing
continues at the same rate, pressure can rise. The operator should verify
automatic controls, firing rate, and operating conditions while maintaining
safe boiler operation.
2. In a hospital power plant, the Senior Power Plant Operator is
responsible for maintaining reliable steam production for heating,
sterilization, humidification, and other critical services. Which boiler
component is specifically designed to remove dissolved oxygen and
other non-condensable gases from boiler feedwater before it enters
the boiler?
A. Economizer
B. Deaerator
C. Superheater
D. Blowdown separator
Answer: B
A deaerator removes dissolved oxygen and carbon dioxide from feedwater
by heating the water with steam and mechanically separating gases.
,Removing oxygen reduces corrosion within boiler tubes and associated
piping systems.
3. During a routine inspection, a Senior Power Plant Operator notices
that boiler water conductivity has increased above acceptable limits.
Which operating procedure is MOST appropriate to control excessive
dissolved solids in the boiler water?
A. Increase fuel pressure to burn off dissolved solids
B. Perform controlled boiler blowdown according to water treatment
requirements
C. Close all feedwater valves to concentrate the chemicals
D. Increase steam pressure above the rated operating limit
Answer: B
Boiler blowdown removes concentrated dissolved solids and impurities
from boiler water. Proper blowdown control maintains water quality,
prevents scale formation, and protects boiler efficiency and reliability.
4. A power plant operator is preparing to place a large steam turbine
generator into service. Before admitting steam to the turbine, which
condition is MOST important to verify?
A. The turbine casing temperature is completely cold
B. Lubricating oil pressure and turning gear operation are satisfactory
C. The generator breaker is permanently closed
D. The condenser vacuum system is disabled
, Answer: B
Steam turbines require proper lubrication and mechanical preparation
before startup. Adequate oil pressure and proper turning gear operation
prevent bearing damage and excessive thermal stress during startup.
5. A Senior Power Plant Operator receives an alarm indicating low boiler
drum water level. If the condition is not corrected promptly, what is
the PRIMARY hazard?
A. Excessive steam condensation in the building
B. Possible overheating and damage to boiler tubes
C. Reduced electrical generator frequency only
D. Increased cooling tower efficiency
Answer: B
Low boiler water level can expose heating surfaces and allow boiler tubes
to overheat, potentially causing serious equipment failure. Maintaining
proper drum level is one of the most important boiler safety
responsibilities.
6. A hospital power plant uses emergency generators to maintain critical
electrical loads during utility failures. Which device automatically
transfers selected hospital electrical loads from normal utility power to
generator power?
