STATIONARY ENGINEER LOCAL 99 FINAL
PAPER 2026 FULL QUESTIONS AND
CORRECT ANSWERS EXPERT REVIEW
GRADED A+
⩥ A barometer measures _______________________
A. flue gas temperature
B. volume of air flow
C. atmospheric pressure
D. difference in air pressure.
Answer: C. atmospheric pressure
⩥ A manometer measures ________________________
A. flue gas temperature
B. volume of air flow
C. atmospheric pressure
D. difference in air pressure.
Answer: D. difference in air pressure
⩥ The operating range of a steam boiler is controlled by a(n)
_________________________
A. pressure control
,B. air flow interlock
C. scanner
D. program clcok.
Answer: A. pressure control
⩥ ________________________ dioxide is a major cause of air
pollution, and is caused by burning fuel oil.
A. Nitrous
B. Vanadium
C. Hydrogen
D. Sulfur.
Answer: D. Sulfur
⩥ The pour point of fuel is the ____________________ temperature at
which fuel oil will ________________________
A. lowest, burn
B. lowest, flow
C. highest, burn
D. highest, flow.
Answer: B. lowest, flow
⩥ ______________________ is necessary to burn the volatile matter in
coal more efficiently
,A. Underfire air
B. Overfire air
C. An increased amount of moisture in coal
D. Some anthracite coal.
Answer: B. Overfire air
⩥ In a coal-fired boiler with a balanced draft system, the pressure over
the fire should be approximately _________".
A. -.02
B. -.05
C. +.2
D. +.5.
Answer: B. -.05
⩥ The rotary cup fuel oil burner must be adjusted so that the flame
_________________
A. hits all sides of the combustion chamber
B. is bright yellow
C. does not strike the rear wall of the combustion chamber
D. is white hot.
Answer: C. does not strike the rear wall of the combustion chamber
, ⩥ Foaming can lead to carryover.
A. True
B. False.
Answer: A. True
⩥ A boiler feedwater pump cannot become steambound
A. True
B. False.
Answer: B. False
⩥ Steam traps and sued wherever air or condensate collects
A. True
B. False.
Answer: A. True
⩥ Steam traps are only used on high-temperature water systems
A. True
B. False.
Answer: B. False
⩥ Waterwalls permit a greater heat release per cubic foot of furnace
volume than refractory walls.
PAPER 2026 FULL QUESTIONS AND
CORRECT ANSWERS EXPERT REVIEW
GRADED A+
⩥ A barometer measures _______________________
A. flue gas temperature
B. volume of air flow
C. atmospheric pressure
D. difference in air pressure.
Answer: C. atmospheric pressure
⩥ A manometer measures ________________________
A. flue gas temperature
B. volume of air flow
C. atmospheric pressure
D. difference in air pressure.
Answer: D. difference in air pressure
⩥ The operating range of a steam boiler is controlled by a(n)
_________________________
A. pressure control
,B. air flow interlock
C. scanner
D. program clcok.
Answer: A. pressure control
⩥ ________________________ dioxide is a major cause of air
pollution, and is caused by burning fuel oil.
A. Nitrous
B. Vanadium
C. Hydrogen
D. Sulfur.
Answer: D. Sulfur
⩥ The pour point of fuel is the ____________________ temperature at
which fuel oil will ________________________
A. lowest, burn
B. lowest, flow
C. highest, burn
D. highest, flow.
Answer: B. lowest, flow
⩥ ______________________ is necessary to burn the volatile matter in
coal more efficiently
,A. Underfire air
B. Overfire air
C. An increased amount of moisture in coal
D. Some anthracite coal.
Answer: B. Overfire air
⩥ In a coal-fired boiler with a balanced draft system, the pressure over
the fire should be approximately _________".
A. -.02
B. -.05
C. +.2
D. +.5.
Answer: B. -.05
⩥ The rotary cup fuel oil burner must be adjusted so that the flame
_________________
A. hits all sides of the combustion chamber
B. is bright yellow
C. does not strike the rear wall of the combustion chamber
D. is white hot.
Answer: C. does not strike the rear wall of the combustion chamber
, ⩥ Foaming can lead to carryover.
A. True
B. False.
Answer: A. True
⩥ A boiler feedwater pump cannot become steambound
A. True
B. False.
Answer: B. False
⩥ Steam traps and sued wherever air or condensate collects
A. True
B. False.
Answer: A. True
⩥ Steam traps are only used on high-temperature water systems
A. True
B. False.
Answer: B. False
⩥ Waterwalls permit a greater heat release per cubic foot of furnace
volume than refractory walls.
