The COP of a domestic refrigerator Is more than 1 Is equal to 1 Is less than 1 Depends upon the make TRUE ANSWER : ? YOUR ANSWER : ?
The heat rejection factor (HRF) is given by 1 + (1/C.O.P) 1 - C.O.P. 1 - (1/C.O.P) 1 + C.O.P TRUE ANSWER : ? YOUR ANSWER : ?
In a lithium bromide absorption refrigeration system Water is used as a refrigerant and lithium bromide as an absorbent Lithium bromide is used as a refrigerant and water as an absorbent Ammonia is used as a refrigerant and lithium bromide as an absorbent None of these TRUE ANSWER : ? YOUR ANSWER : ?
During adiabatic saturation process on unsaturated air ___ remains constant. Dry bulb temperature Dew point temperature Wet bulb temperature Relative humidity TRUE ANSWER : ? YOUR ANSWER : ?
In which of the following refrigeration system, waste heat can be effectively used? None of the listed here Vapour compression cycle Vapour absorption cycle Air refrigeration cycle TRUE ANSWER : ? YOUR ANSWER : ?
Air refrigeration operates on Reversed Carnot cycle Rankine’s cycle Brayton cycle Carnot cycle TRUE ANSWER : ? YOUR ANSWER : ?
The horizontal and non-uniformly spaced lines on a psychrometric chart indicates Dry bulb temperature Dew point temperature Wet bulb temperature Specific humidity TRUE ANSWER : ? YOUR ANSWER : ?
In case of sensible heating of air, the coil efficiency is given by (where B.P.F. = Bypass factor) P.F. - 1 1 + B.P.F. 1/ B.P.F. 1 - B. P.F. TRUE ANSWER : ? YOUR ANSWER : ?
Ammonia absorption refrigeration cycle requires Nearly same work input as for vapour compression cycle Zero work input Very little work input Maximum work input TRUE ANSWER : ? YOUR ANSWER : ?
In aqua ammonia and Lithium bromide water absorption refrigeration systems, the refrigerants are respectively Ammonia and lithium bromide Water and lithium bromide Ammonia and water Water and water TRUE ANSWER : ? YOUR ANSWER : ?