Safety Valves Quiz
In accordance with accepted practice, the type of valve located between the boiler and
the safety valve must be a/an: - answer no valve
What is the primary purpose of a "pressure relief device"? - answer Primary purpose is
to maintain the system integrity
Safety valves are designed to operate in what fashion? - answer pop open
Which of the following describes the function of a safety valve? - answer Provide
overpressure protection to limit the internal pressure in vessels.
If a safety valve sticks open, what is the best thing for an operator to do? - answer The
operator in his best judgment should immediately shut the boiler down.
The relieving capacity of a steam boiler safety valve is measured in: - answerless/hr that
it is discharging
If a discharge valve is opened to the atmosphere, what will happen to the pressure on
the upstream side of the valve? - answerdecrease, and the pressure on the downstream
side will remain the same.
Which of the following statements describes the difference between a typical safety
relief and a typical safety valve? - answerAs the pressure increases above the setpoint
a relief valve gradually opens; on a safety valve the valve opens fully at setpoint
pressure.
The steam pressure on a safety valve acts upon the upperside of the valve disc, which
is held down on the valve seat by a spring that pushes down. - answerFalse
What type of device is the safety valve: - answerprevents boiler explosion
In accordance with accepted practice, the type of valve located between the boiler and
the safety valve must be a/an: - answer no valve
What is the primary purpose of a "pressure relief device"? - answer Primary purpose is
to maintain the system integrity
Safety valves are designed to operate in what fashion? - answer pop open
Which of the following describes the function of a safety valve? - answer Provide
overpressure protection to limit the internal pressure in vessels.
If a safety valve sticks open, what is the best thing for an operator to do? - answer The
operator in his best judgment should immediately shut the boiler down.
The relieving capacity of a steam boiler safety valve is measured in: - answerless/hr that
it is discharging
If a discharge valve is opened to the atmosphere, what will happen to the pressure on
the upstream side of the valve? - answerdecrease, and the pressure on the downstream
side will remain the same.
Which of the following statements describes the difference between a typical safety
relief and a typical safety valve? - answerAs the pressure increases above the setpoint
a relief valve gradually opens; on a safety valve the valve opens fully at setpoint
pressure.
The steam pressure on a safety valve acts upon the upperside of the valve disc, which
is held down on the valve seat by a spring that pushes down. - answerFalse
What type of device is the safety valve: - answerprevents boiler explosion
