NYC Health Hospitals Boiler Maker
Exam Practice Questions And Correct
Answers (Verified Answers) Plus
Rationale 2026 Q&A| Instant Download
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1. A boiler maker working in a hospital power plant is inspecting a high-
pressure boiler that has been shut down for maintenance. Before
entering the boiler for internal inspection, which procedure is most
important to ensure worker safety?
A. Increase the boiler pressure slightly to test the shell strength
B. Open all safety valves and leave the fuel supply connected
C. Lock out and tag out all energy sources, verify zero pressure, and ensure
proper ventilation
D. Remove only the pressure gauge and begin inspection
Answer: C
,The correct answer is C because boiler entry requires complete isolation of
hazardous energy sources, confirmation that pressure has been relieved,
and safe atmospheric conditions before personnel enter confined spaces.
2. A boiler maker notices that a boiler safety relief valve is leaking
continuously while the boiler is operating at normal pressure. What is
the most appropriate action?
A. Block the valve outlet to stop water loss
B. Inspect the valve condition and report the issue for correction
C. Increase the boiler pressure to reseat the valve
D. Adjust the valve spring without authorization
Answer: B
The correct answer is B because a leaking safety relief valve may indicate a
defective safety device, and it must be inspected and corrected according
to safety procedures rather than blocked or improperly adjusted.
3. The primary purpose of a boiler safety relief valve is to:
A. Control combustion air flow
B. Remove dissolved solids from water
C. Prevent excessive pressure buildup
D. Increase steam temperature
Answer: C
,The correct answer is C because safety relief valves protect boilers by
automatically releasing pressure when it exceeds the safe operating limit.
4. During boiler operation, the water level suddenly drops below the
visible range of the gauge glass. What should the boiler maker do first?
A. Add cold water immediately to the boiler
B. Increase firing rate to restore steam pressure
C. Shut down the burner and follow emergency procedures
D. Remove the gauge glass for cleaning
Answer: C
The correct answer is C because a low-water condition can expose boiler
heating surfaces and cause catastrophic failure; immediate shutdown is
required.
5. In a fire-tube boiler, hot combustion gases primarily travel through:
A. Tubes surrounded by water
B. Water pipes surrounded by steam
C. The feedwater tank
D. The steam drum only
Answer: A
The correct answer is A because fire-tube boilers pass hot gases through
tubes that are surrounded by boiler water, transferring heat to generate
steam.
, 6. The main function of a boiler feedwater pump is to:
A. Remove ash from the furnace
B. Supply water to the boiler at the required pressure
C. Increase steam temperature
D. Reduce combustion efficiency
Answer: B
The correct answer is B because feedwater pumps deliver treated water
into the boiler against internal pressure to maintain proper operating
levels.
7. A boiler maker performing welding repairs on pressure vessels must be
most concerned with:
A. Decorative appearance of the weld
B. Proper welding procedures and material compatibility
C. Reducing the number of weld passes
D. Avoiding all heat treatment
Answer: B
The correct answer is B because pressure vessel welding must follow
approved procedures to maintain structural integrity and prevent failure
under pressure.
8. The purpose of a boiler blowdown system is to:
Exam Practice Questions And Correct
Answers (Verified Answers) Plus
Rationale 2026 Q&A| Instant Download
1. A boiler maker working in a hospital power plant is inspecting a high-
pressure boiler that has been shut down for maintenance. Before
entering the boiler for internal inspection, which procedure is most
important to ensure worker safety?
A. Increase the boiler pressure slightly to test the shell strength
B. Open all safety valves and leave the fuel supply connected
C. Lock out and tag out all energy sources, verify zero pressure, and ensure
proper ventilation
D. Remove only the pressure gauge and begin inspection
Answer: C
,The correct answer is C because boiler entry requires complete isolation of
hazardous energy sources, confirmation that pressure has been relieved,
and safe atmospheric conditions before personnel enter confined spaces.
2. A boiler maker notices that a boiler safety relief valve is leaking
continuously while the boiler is operating at normal pressure. What is
the most appropriate action?
A. Block the valve outlet to stop water loss
B. Inspect the valve condition and report the issue for correction
C. Increase the boiler pressure to reseat the valve
D. Adjust the valve spring without authorization
Answer: B
The correct answer is B because a leaking safety relief valve may indicate a
defective safety device, and it must be inspected and corrected according
to safety procedures rather than blocked or improperly adjusted.
3. The primary purpose of a boiler safety relief valve is to:
A. Control combustion air flow
B. Remove dissolved solids from water
C. Prevent excessive pressure buildup
D. Increase steam temperature
Answer: C
,The correct answer is C because safety relief valves protect boilers by
automatically releasing pressure when it exceeds the safe operating limit.
4. During boiler operation, the water level suddenly drops below the
visible range of the gauge glass. What should the boiler maker do first?
A. Add cold water immediately to the boiler
B. Increase firing rate to restore steam pressure
C. Shut down the burner and follow emergency procedures
D. Remove the gauge glass for cleaning
Answer: C
The correct answer is C because a low-water condition can expose boiler
heating surfaces and cause catastrophic failure; immediate shutdown is
required.
5. In a fire-tube boiler, hot combustion gases primarily travel through:
A. Tubes surrounded by water
B. Water pipes surrounded by steam
C. The feedwater tank
D. The steam drum only
Answer: A
The correct answer is A because fire-tube boilers pass hot gases through
tubes that are surrounded by boiler water, transferring heat to generate
steam.
, 6. The main function of a boiler feedwater pump is to:
A. Remove ash from the furnace
B. Supply water to the boiler at the required pressure
C. Increase steam temperature
D. Reduce combustion efficiency
Answer: B
The correct answer is B because feedwater pumps deliver treated water
into the boiler against internal pressure to maintain proper operating
levels.
7. A boiler maker performing welding repairs on pressure vessels must be
most concerned with:
A. Decorative appearance of the weld
B. Proper welding procedures and material compatibility
C. Reducing the number of weld passes
D. Avoiding all heat treatment
Answer: B
The correct answer is B because pressure vessel welding must follow
approved procedures to maintain structural integrity and prevent failure
under pressure.
8. The purpose of a boiler blowdown system is to:
