A forced-circulation hot water heating system is vented to the atmosphere.
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A(n) ___ is a heat exchanger that removes heat from a high-p…
A(n) ___ is a heat exchanger that removes heat from a high-pressure refrigerant vapor.
A handhole is a hole in a boiler shell that provides access…
A handhole is a hole in a boiler shell that provides access for a person during maintenance and repair operations.
Nonadhering sludge is best removed when a boiler is ___.
Nonadhering sludge is best removed when a boiler is ___.
Sodium sulfite is an oxygen scavenger that is commonly used…
Sodium sulfite is an oxygen scavenger that is commonly used to treat boiler water.
A forced-circulation hot water heating system is vented to t…
A forced-circulation hot water heating system is vented to the atmosphere.
In a refrigeration system, the specific volume of the refrig…
In a refrigeration system, the specific volume of the refrigerant is used in determining the size of the required compressor.
Expansion bends are used to route steam lines around obstacl…
Expansion bends are used to route steam lines around obstacles.
High surface tension on boiler water is shown by ___.
High surface tension on boiler water is shown by ___.
One-pipe systems include direct-return and reverse-return sy…
One-pipe systems include direct-return and reverse-return systems.