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2 Boiler Fittings > Key Points > Flashcards

Flashcards in Key Points Deck (17)
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1
Q

Safety valve capacity is the amount of steam in pounds per hour that the safety valve is capable of venting at its rated pressure

A

True

2
Q

According to the ASME boiler and pressure vessel code, a try lever test should be performed every 30 days the boiler is in operation

A

True

3
Q

The safety valve try lever test should be performed at a minimum of 5 psi on a low pressure boiler

A

True

4
Q

A pop test is performed to determine if a safety valve opens at the proper pressure withing allowable tolerances

A

True

5
Q

A steam pressure gauge displays the amount of steam in a boiler

A

True

6
Q

Hydrostatic pressure is the weight of water (0.433 psi per vertical foot)

A

True

7
Q

A siphon provides a water seal to prevent contact with live steam

A

True

8
Q

Water should never be added to the boiler if water is not present in the gauge glass. Adding water to a boiler with a low water condition could cause a boiler explosion

A

True

9
Q

A boiler should never be dumped when hot

A

True

10
Q

Foaming caused by surface impurities can lead to priming and carryover

A

True

11
Q

Some large boilers require a continuous blowdown

A

True

12
Q

A fusible plug is a warning device used to indicate extreme overheating of the boiler from a low water condition

A

True

13
Q

A pressure control is a switch that starts the burner, controls the firing rate, or shuts down the burner based on steam pressure

A

True

14
Q

An operating control initiates the burner start-up sequence and burner shut-down sequence as required

A

True

15
Q

A high limit control senses steam pressure and automatically shuts down the burner if the operating limit control fails

A

True

16
Q

A modulating control controls the firing rate of the burner

A

True

17
Q

If the heat exhanger design allows for fluids to be trapped withing the heat exchanger, the heat exchanger must be protected from overpressure by a thermal expansion safety relief valve or a rupture disc

A

True