Arkansas Boiler Operator Study
Questions with answers
Which valve is between the boiler and the return pump? -
CORRECT ANSWERS ✔✔Check Valve
What is the the function of the check valve? - CORRECT
ANSWERS ✔✔To 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 ANSWERS ✔✔Safety relief valve, blow-down
valve, low water cut-off, and pressure gauge.
Safety relief valves should be set by: - CORRECT
ANSWERS ✔✔Qualified safety valve technician/firm.
Which pressure is considered to be that of a low-pressure
boiler? - CORRECT ANSWERS ✔✔0-15 PSI MAWP
What could happen if a steam valve is open too quickly? -
CORRECT ANSWERS ✔✔Water could be siphoned out of
the boiler causing damage to the boiler and steam lines.
, Why are steam lines insulated? - CORRECT ANSWERS
✔✔To prevent loss of heat during steam transfer.
What operating pressure indicates a high pressure boiler?
- CORRECT ANSWERS ✔✔16 PSI and above
A steam valve should be opened slowly? - CORRECT
ANSWERS ✔✔True
Improper mixtures of gas and air causes soot in boiler
flues - CORRECT ANSWERS ✔✔True
What is a water injector (feed pump)? - CORRECT
ANSWERS ✔✔A mechanical device for forcing water into a
boiler against high pressures.
What is the purpose of a baffle wall in a boiler? -
CORRECT ANSWERS ✔✔To distribute flame evenly.
If a boiler is not kept clean internally, scales will form and
cause the boiler not to blister - CORRECT ANSWERS
✔✔False
Questions with answers
Which valve is between the boiler and the return pump? -
CORRECT ANSWERS ✔✔Check Valve
What is the the function of the check valve? - CORRECT
ANSWERS ✔✔To 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 ANSWERS ✔✔Safety relief valve, blow-down
valve, low water cut-off, and pressure gauge.
Safety relief valves should be set by: - CORRECT
ANSWERS ✔✔Qualified safety valve technician/firm.
Which pressure is considered to be that of a low-pressure
boiler? - CORRECT ANSWERS ✔✔0-15 PSI MAWP
What could happen if a steam valve is open too quickly? -
CORRECT ANSWERS ✔✔Water could be siphoned out of
the boiler causing damage to the boiler and steam lines.
, Why are steam lines insulated? - CORRECT ANSWERS
✔✔To prevent loss of heat during steam transfer.
What operating pressure indicates a high pressure boiler?
- CORRECT ANSWERS ✔✔16 PSI and above
A steam valve should be opened slowly? - CORRECT
ANSWERS ✔✔True
Improper mixtures of gas and air causes soot in boiler
flues - CORRECT ANSWERS ✔✔True
What is a water injector (feed pump)? - CORRECT
ANSWERS ✔✔A mechanical device for forcing water into a
boiler against high pressures.
What is the purpose of a baffle wall in a boiler? -
CORRECT ANSWERS ✔✔To distribute flame evenly.
If a boiler is not kept clean internally, scales will form and
cause the boiler not to blister - CORRECT ANSWERS
✔✔False
