KERALA UNIVERSITY Class 7 refrigeration and air conditioning Question Paper 2019

Practice authentic previous year questions for better exam preparation.

Sample Questions

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...
An air-conditioned auditorium is to be maintained at $27^{\circ} \mathrm{C}$ DBT and $60 \% \mathrm{RH}$. The ambient condition is $40^{\circ} \mathrm{C}$ DBT and $30^{\circ} \mathrm{C}$ WBT. The total sensible heat load $10^{5} \mathrm{~kJ} / \mathr...
Give the comparison between vapour absorption and vapour compression systems.