145) In a psychrometric chart, dew point temperature lines are horizontal and non-uniformly spaced.

146) If the evaporator temperature is kept constant, the coefficient of performance of a refrigeration cycle __________ with the increase in condenser temperature.

147) The evaporator used in house-hold refrigerators is

148) The drier in a refrigeration system removes moisture in the system.

149) The __________ point of ammonia is -77.7?C.