Boiler Exam Sample Questions with
Correct Answers 100% Pass 2025-
2026
Which valve is between the boiler and the return pump CORRECT ANSWER check valve
what is the function of the check valve CORRECT ANSWER
prevent the water from returning to the condensation tank from the boiler after the pump shuts
off
four safety features required on the steam boiler are CORRECT ANSWER
safety relief valve, blow-down valve, low water cut-off, and pressure gauge
safety relief valves should be set by CORRECT ANSWER qualified safety valve technician
which pressure in considered to be that of a low-pressure boiler CORRECT ANSWER
0- 15 PSI MAWP
what could happen if a steam valve is opened quickly CORRECT ANSWER
water could be siphoned out of the boiler causing damage to boiler and steam lines
why are steam lines insulated CORRECT ANSWER to prevent heat loss during steam transfer
what operating pressure indicated a high-pressure boiler CORRECT ANSWER 16 PSI and above
a steam valve should be opened slowly true or false CORRECT ANSWER true
improper mixtures of gas and air causes soot in boiler flues true or false CORRECT ANSWER
true
Correct Answers 100% Pass 2025-
2026
Which valve is between the boiler and the return pump CORRECT ANSWER check valve
what is the function of the check valve CORRECT ANSWER
prevent the water from returning to the condensation tank from the boiler after the pump shuts
off
four safety features required on the steam boiler are CORRECT ANSWER
safety relief valve, blow-down valve, low water cut-off, and pressure gauge
safety relief valves should be set by CORRECT ANSWER qualified safety valve technician
which pressure in considered to be that of a low-pressure boiler CORRECT ANSWER
0- 15 PSI MAWP
what could happen if a steam valve is opened quickly CORRECT ANSWER
water could be siphoned out of the boiler causing damage to boiler and steam lines
why are steam lines insulated CORRECT ANSWER to prevent heat loss during steam transfer
what operating pressure indicated a high-pressure boiler CORRECT ANSWER 16 PSI and above
a steam valve should be opened slowly true or false CORRECT ANSWER true
improper mixtures of gas and air causes soot in boiler flues true or false CORRECT ANSWER
true
