Boiler operator study guide CORRECT 100%
Safety valve - ANSWER Prevents boiler pressure from rising above the setting of the valve by relieving
excessive steam pressure, guarding against hazards of over pressure.
Steam supply stop valve - ANSWER The valve installed at the steam outlet of the boiler to shut off the
flow of steam.
Steam pressure gauge - ANSWER Indicates the steam pressure in the boiler in pounds per square inch, or
p s i.
Steam gauge syphon - ANSWER The device installed between the steam gauge and the boiler to provide
a water seal, so that live steam will not enter the gauge to cause a false reading or damage to the gauge.
Inspector's test gauge connection and cock - ANSWER Provides the necessary connection to check the
accuracy of the steam pressure gauge on the boiler.
Water column - 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 this.
Water glass and gauge fixtures - ANSWER Visibly show the water level in the boiler.
Water feed inlet check valve - ANSWER Check valve on the water feed inlet that closes to prevent water
or steam from the boiler backing up into the water feed line.
Low water cutoff - ANSWER A 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 - ANSWER To maintain the desired steam operating pressure on the
boiler by regulating the burner to the steam pressure setting.
Safety valve - ANSWER Prevents boiler pressure from rising above the setting of the valve by relieving
excessive steam pressure, guarding against hazards of over pressure.
Steam supply stop valve - ANSWER The valve installed at the steam outlet of the boiler to shut off the
flow of steam.
Steam pressure gauge - ANSWER Indicates the steam pressure in the boiler in pounds per square inch, or
p s i.
Steam gauge syphon - ANSWER The device installed between the steam gauge and the boiler to provide
a water seal, so that live steam will not enter the gauge to cause a false reading or damage to the gauge.
Inspector's test gauge connection and cock - ANSWER Provides the necessary connection to check the
accuracy of the steam pressure gauge on the boiler.
Water column - 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 this.
Water glass and gauge fixtures - ANSWER Visibly show the water level in the boiler.
Water feed inlet check valve - ANSWER Check valve on the water feed inlet that closes to prevent water
or steam from the boiler backing up into the water feed line.
Low water cutoff - ANSWER A 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 - ANSWER To maintain the desired steam operating pressure on the
boiler by regulating the burner to the steam pressure setting.
