KERALA UNIVERSITY Class 7 refrigeration and air conditioning Question Paper 2019

Practice authentic previous year questions for better exam preparation.

Sample Questions

Derive an expression for specific humidity and show that it is function of vapour pressure and barometric pressure of air.
Derive an expression for finding out the mass of motive steam required per kg of water vapour produced. P.T.O.
The following data relate to a steam ejector refrigeration system: Condition of the motive steam $=7$ bar, dry saturated, Temperature of water in the flash chamber $=4.5^{\circ} \mathrm{C}$, Temperature at which the make-up water is supplied $=18^{\c...
Discuss briefly the following systems of lubrication: (i) Splash lubrication system and (ii) Pressure lubrication system.
Atmospheric air at a pressure of 760 mm Hg has temperature of $32^{\circ} \mathrm{C}$ and a percentage saturation as determined from a psychrometric chart of $52 \%$. Calculate: (i) The partial pressure of the vapour and the dry air, (ii) The specifi...