A. high triiscibility with oil
B. low boiling point
C. good electrical conductor
D. large latent heat
E. non-inflammable
Refrigeration and Air Conditioning
Refrigeration and Air Conditioning
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
A. 1 : 1
B. 1 : 9
C. 9 : 1
D. 1 : 3
E. 3 : 1
A. non-toxic
B. non-inflammable
C. toxic and non-inflammable
D. highly toxic and inflammable
E. none of the above
A. constant pressure lines
B. constant temperature lines
C. constant total heat lines
D. constant entropy lines
E. constant volume lines
A. the standard unit used in refrigeration problems
B. the cooling effect produced by melting 1 ton of ice
C. the refrigeration effect to freeze 1 ton of water at 0°C into ice at 0°C in 24 hours
D. the refrigeration effect to produce 1 ton of ice at NTP conditions
E. the refrigeration effect to produce 1 ton of ice in 1 hour time
