An important characteristic of absorption system of refrigeration is__________________?

A. Nosiy operation
B. Quiet operation
C. Cooling below 0°c
D. Very little power consumption

Vapor compression refrigeration is some what like ____________________?

A. carnot cycle
B. rankine cycle
C. reversed camot cycle
D. reversed rankine cycle

Ammonia-absorption refrigeration cycle requires__________________?

A. Very little work input
B. Maximum work input
C. Nearly same work input as for vapour compression cycle
D. Zero work input

One ton refrigeratiqn corresponds to_________________?

A. 50 kcal/min
B. 50 kcal/kr
C. 80 kcal/min
D. 80 kcal/hr

A standard ice point temperature corresponds to the temperature of ___________________?

A. water at 0°c
B. ice at – 4°c
C. solid and dry ice
D. mixture of ice, water and vapour under equilibrium conditions under ntp conditions

In vapour compression cycle the condition of refrigerant is superheated vapour _____________________?

A. After passing through the condenser
B. Before passing through the condenser
C. After passing through the expansion or throttle valve
D. Before [entering the expansion valve

One ton of refrigeration is equal to the refrigeration effect corresponding to melting of 1000 kg of ice_________________?

A. In 1 hour
B. In 1 minute
C. In 24 hours
D. In 12 hours

Critical temperature is’ the temperature above which _____________________?

A. A gas will never liquefy
B. A gas will immediately liquefy
C. Water will evaporate
D. Water will never evaporate

The COP of a domestic refrigerator___________________?

A. Is less than 1
B. Is more than 1
C. Is equal to 1
D. Depends upon the make

Presence of moisture in a refrigerant affects the working of___________________?

A. Compressor
B. Condenser
C. Evaparator
D. Expansion valve