Safety valve capacity is the amount of ___, in pounds per hour (lb/hr), that the safety valve is capable of venting at the rated pressure of the safety valve.
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A photocell sensor senses ___ light.
A photocell sensor senses ___ light.
An outside-stem-and-yoke valve is a ___ valve that indicates…
An outside-stem-and-yoke valve is a ___ valve that indicates whether it is open or closed by the position of the stem.
The stop valve on the feedwater line should be located as cl…
The stop valve on the feedwater line should be located as close to the boiler as practical for isolating the boiler from feedwater accessories during service.
The range of pressure on a vacuum switch on a vacuum pump is…
The range of pressure on a vacuum switch on a vacuum pump is usually 2″ Hg to 8″ Hg.
The stop valve on the feedwater line should be located as cl…
The stop valve on the feedwater line should be located as close to the boiler as practical for isolating the boiler from feedwater accessories during service.
___ regulations place restrictions on the design and install…
___ regulations place restrictions on the design and installation of fuel oil tanks.
Specific heat has no unit of measurement since it is a ratio…
Specific heat has no unit of measurement since it is a ratio, but it is almost identical numerically to the heat capacity because of the way the Btu is defined.
The internal resistance of fuel oil to flow is the ___.
The internal resistance of fuel oil to flow is the ___.
In a float thermostatic trap, the ball float opens and close…
In a float thermostatic trap, the ball float opens and closes a discharge valve depending on the amount of ___ in the chamber.