- (A) reduce compressor overheating
- (B) reduce compressor discharge temperature
- (C) increase cooling effect
- (D) ensure that only liquid and not the vapour enters the expansion (throttling) valve
- (E) none of the above
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- (A) more
- (B) less
- (C) same
- (D) more for small capacity and less for high capacity
- (E) less for small capacity and more for high capacity
- (A) results in loss of heat due to poor heat transfer
- (B) increases heat transfer rate
- (C) is immaterial
- (D) can be avoided by proper design
- (E) decreases compressor power
- (A) decreases
- (B) increases
- (C) remains same
- (D) depends on other factors
- (E) none of the above
- (A) high triiscibility with oil
- (B) low boiling point
- (C) good electrical conductor
- (D) large latent heat
- (E) non-inflammable
- (A) strong solution to weak solution
- (B) weak solution to strong solution
- (C) strong solution to ammonia vapour
- (D) ammonia vapour to weak solution
- (E) ammonia vapour to strong solution
- (A) same
- (B) more
- (C) less
- (D) more/less depending on rating
- (E) unpredictable
- (A) critical pressure of refrigerant
- (B) much below critical pressure
- (C) much above critical pressure
- (D) near critical pressure
- (E) there is no such restriction
- (A) Ammonia
- (B) Carbon dioxide
- (C) Freon
- (D) Brine
- (E) Hydrocarbon refrigerant
- (A) condenser
- (B) evaporator
- (C) compressor
- (D) expansion valve
- (E) receiver
