Category: Refrigeration and Air Conditioning

A. bigger
B. smaller
C. equal
D. smaller/bigger depending on capacity
E. unpredictable

A. near critical temperature of refrigerant
B. above critical temperature
C. at critica. temperature
D. much below critical temperature
E. could be anywhere

A. high, of the order of 25°
B. as low as possible (3 to 11°C)
C. zero
D. any value
E. none of the above

A. high triiscibility with oil
B. low boiling point
C. good electrical conductor
D. large latent heat
E. non-inflammable

A. very little work input
B. maximum work input
C. nearly same work input as for vapour compression cycle
D. zero work input
E. none of the above

A. inflammable
D. toxic
C. non-inflammable and toxic
D. non-toxic and inflammable
E. non-toxic and non-inflammable

A. atmospheric pressure
B. slightly above atmospheric pressure
C. 2-4 bars
D. 5-6 bars
E. 7-10 bars

A. Carnot cycle
B. Rankine cycle
C. reversed Camot cycle
D. reversed Rankine cycle
E. none of the above

A. after passing through the condenser
B. before passing through the condensei
C. after passing through the expansion throttle valve
D. before entering the expansion valve
E. before entering the compressor

A. electrically operated throttling valve
B. manually operated valve
C. thermostatic valve
D. capillary tube
E. expansion valve.