162) The refrigerant carbon dioxide is not widely used because of its __________ power require ments per tonne of refrigeration and high operating pressures.

163) The by-pass factor of a cooling coil decreases with

164) Dehydration is the process of removing water vapour from the surrounding air.

165) The cooling of air, without any change in its specific humidity, is known as sensible cooling.

166) The capacity of the cooling tower and spray ponds __________ as the wet bulb temperature of air decreases.