题目内容

Subcooling increases the( )of the refrigeration cycle.

A. capacity
B. refrigeration effect
C. mass flow rate
D. volume flow rate

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The temperature at which a fluid boils or condenses, is known as( )and varies withpressure.

A. saturation temperature
B. superheated temperature
C. sub-cooled temperature
D. wet bulb temperature

The boiling and condensation points of a refrigerant depend on the( )exerted upon it.

A. pressure
B. temperature
C. superheat
D. super-cool

The refrigerant entering the evaporator coil, at a temperature( )than that of thesurrounding secondary coolant ( air or brine) receives latent heat and( )

A. higher; condenses
B. lower; evaporates
C. lower; compresses
D. higher; evaporates

The dew point of air is reached when the wet bulb temperature is( )

A. twice the dry bulb temperature
B. 10°C above the dry bulb temperature
C. 5° C above the dry bulb temperature
D. equal to the dry bulb temperature

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