BOILER EXAM QUESTIONS AND ANSWERS #8
Safety Valve - correct answer Prevents boiler pressure from rising above the setting of
the valve by relieving excessive steam pressure, guarding against hazards of
overpressurization.
Steam Supply Stop Valve - correct answer The valve installed at the steam outlet of the
boiler to shut off the flow of steam.
Steam Pressure Gauge - correct answer Indicates the steam pressure in the boiler in
pounds per square inch.
Steam Gauge Syphon - correct answer Device installed between the steam gauge and
the boiler to provide a water seal so that steam will not enter the gauge to give a false
reading or damage the gauge.
Inspector's Test Gauge Connection and Cock - correct answer Provides the necessary
connection to check the accuracy of the steam pressure gauge on the boiler.
Water Column - correct answer The hollow casting or forging connected at the top to
the boiler's steam space and at the bottom to the water space. The water gauge glass
and water test cocks are installed on the column.
Water Glass and Gauge Fixtures - correct answer To visibly show the water level in the
boiler.
Water Test Gauges or Try Cocks - correct answer For testing the water level in the
boiler should the the water glass be temporarily out of service for any reason.
Drain Valve under the Water Column and Switch - correct answer To provide for a
means of daily flushing under the water column and water level controls to keep the
chamber and lines clean so the water will register accurately in the glass. Also provides
a means of testing the low water cutoff.
Blowoff or Blowdown Valve - correct answer To provide a method of draining, flushing,
and blowing off the boiler at the low point to remove the concentrated solids, sediment,
seals and sludge to keep the boiler clean.
Water Feed Inlet Check Valve - correct answer The check Valve on the water feed inlet
that closes to prevent steam or water from the boiler backing up into the water feed line.
Low Water Cutoff - correct answer The control required on all boilers to shut off the
main fuel burner when the water reaches the lowest, safe, permissible level.
Steam Pressure Operating Control - correct answer To maintain the desired steam
operating pressure by regulating the burner to steam pressure setting.
Safety Valve - correct answer Prevents boiler pressure from rising above the setting of
the valve by relieving excessive steam pressure, guarding against hazards of
overpressurization.
Steam Supply Stop Valve - correct answer The valve installed at the steam outlet of the
boiler to shut off the flow of steam.
Steam Pressure Gauge - correct answer Indicates the steam pressure in the boiler in
pounds per square inch.
Steam Gauge Syphon - correct answer Device installed between the steam gauge and
the boiler to provide a water seal so that steam will not enter the gauge to give a false
reading or damage the gauge.
Inspector's Test Gauge Connection and Cock - correct answer Provides the necessary
connection to check the accuracy of the steam pressure gauge on the boiler.
Water Column - correct answer The hollow casting or forging connected at the top to
the boiler's steam space and at the bottom to the water space. The water gauge glass
and water test cocks are installed on the column.
Water Glass and Gauge Fixtures - correct answer To visibly show the water level in the
boiler.
Water Test Gauges or Try Cocks - correct answer For testing the water level in the
boiler should the the water glass be temporarily out of service for any reason.
Drain Valve under the Water Column and Switch - correct answer To provide for a
means of daily flushing under the water column and water level controls to keep the
chamber and lines clean so the water will register accurately in the glass. Also provides
a means of testing the low water cutoff.
Blowoff or Blowdown Valve - correct answer To provide a method of draining, flushing,
and blowing off the boiler at the low point to remove the concentrated solids, sediment,
seals and sludge to keep the boiler clean.
Water Feed Inlet Check Valve - correct answer The check Valve on the water feed inlet
that closes to prevent steam or water from the boiler backing up into the water feed line.
Low Water Cutoff - correct answer The control required on all boilers to shut off the
main fuel burner when the water reaches the lowest, safe, permissible level.
Steam Pressure Operating Control - correct answer To maintain the desired steam
operating pressure by regulating the burner to steam pressure setting.
