A. Freon-12
B. NH3
C. C02
D. Freon-22
E. S02
Related Mcqs:
- Freon group of refrigerants are___________________?
A. inflammable
D. toxic
C. non-inflammable and toxic
D. non-toxic and inflammable
E. non-toxic and non-inflammable - Where does the lowest temperature occur in a vapour compression cycle ?
A. condenser
B. evaporator
C. compressor
D. expansion valve
E. receiver - Which of the following cycles uses air as the refrigerant__________________?
A. Ericsson
B. Stirling
C. Carnot
D. Bell-coleman
E. none of the above - The vapor compression refrigerator employs the following cycle_________________?
A. Rankine
B. Carnot
C. Reversed Rankine
D. Brayton
E. Reversed Carnot - Domestic refrigerator working on vapour compression cycle uses the following type of expansion device____________________?
A. electrically operated throttling valve
B. manually operated valve
C. thermostatic valve
D. capillary tube
E. expansion valve. - The domestic refrigerator uses following type of compressor ____________________?
A. centrifugal
B. axial
C. miniature sealed unit
D. piston type reciprocating
E. none of the above - Refrigeration in aeroplanes usually employs the following refrigerant___________________?
A. Co2
B. Freon-11
C. Freon-22
D. Air
E. none of the above - Cooling water is required for following equipment in ammonia absorption plant__________________?
A. condenser
B. evaporator
C. absorber
D. condenser and absorber
E. condenser, absorber and separator (rectifier) - The general rule for rating refrigeration systems (excepting for C02 system) is to approximate following h.p. per ton of refrigeration__________________?
A. 0.1 to 0.5 h.p. per ton of refrigeration
B. 0.5 to 0.8 h.p. per ton of refrigeration
C. 1 to 2 h.p. per ton of refrigeration
D. 2 to 5 h.p. per ton of refrigeration
E. 5 to 10 h.p. per ton refrigeration - Absorption system normally uses the following refrigerant___________________?
A. Freon-11
B. Freon-22
C. C02
D. S02
E. ammonia
