Net stack temperature identifies _____

a. actual flue gas temperature
b. heat lost to the ambient
c. burner flame temperature
d. heat created by combustion


d

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A ____ works by holding the forces on both sides of a diaphragm in balance.

A. cylinder valve B. regulator C. safety disc D. torch valve

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The work done by the vapor on the piston is nearest:

The frictionless piston shown in its initial position provides a pressure of 600 kPa in the cylinder. Energy is added until the temperature reaches 250°C.

A) 65 J
B) 55 J
C) 45 J
D) 35 J

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Pressure switch circuits are ____ type switches.

A. transducer B. simple on-off C. sensor D. actuator

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Which of the following statements is TRUE about double risers within suction lines?

A) During full-load operation, refrigerant is forced through the smaller riser. B) During full-load operation, refrigerant is forced through the larger riser. C) During part-load operation, refrigerant is forced through the smaller riser. D) During part-load operation, refrigerant is forced through the larger riser.

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