Q. In a psychrometric process, the sensible heat added is 30 kJ/s and the latent heat added is 20 kJ/s. The sensible heat factor for the process will be

View solution

Q. The amount of radiation mainly depends upon the

View solution

Q. For ammonia refrigerating systems, the tubes of a shell and tube condenser are made of

View solution

Q. The highest thermal diffusivity is of

View solution

Q. While designing the refrigeration system of an aircraft, the prime consideration is that the

View solution

Q. The heat transfer takes place according to

View solution

Q. An electrolux refrigerator is called a __________ absorption system.

View solution

Q. The heat transfer by radiation __________ a medium.

View solution

Q. Thermal conductivity of water __________ with rise in temperature.

View solution

Q. The critical radius is the insulation radius at which the resistance to heat flow is

View solution

Q. In case of solids, the heat transfer takes place according to radiation.

View solution

Q. A water cooled condenser operates at a __________ condensing temperature than an air-cooled condenser.

View solution

Q. The relative humidity decreases as air gets wet.

View solution

Q. The temperature of ammonia after compression in a vapour compression system is

View solution

Q. During adiabatic saturation process on unsaturated air __________ remains constant.

View solution

Q. The thickness of thermal and hydrodynamic boundary layer is equal if Prandtl number is

View solution

Q. A perfect black body is one which

View solution

Q. Degree of saturation or percentage humidity is

View solution

Q. The coefficient of performance of Heat Pump is always __________ one.

View solution

Q. The wet bulb temperature during sensible heating of air

View solution