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34.
Match List I (Expansion device) with List II (Operation) and select the correct answer :
List I
A. Float value
B. Automatic expansion valve
C. Internally equalized thermostatic
expansion valve
D. Externally equalized thermostatic
expansion valveList II
1. constant degree of superheat at
evaporator exit pressure
2. Constant degree of superheat at
evaporator inlet pressure
3. Constant level of refrigerant in the
evaporator
4. Constant pressure in the evaporator
b. A→3, B→2, C→4, D→1
c. A→3, B→4, C→2, D→1
d. A→1, B→4, C→2, D→3
asked in Mechanical Paper-1, 2001
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36.
Match List I (Refrigerant) with List II (Chemical constituent) and select the correct answer :
List I
A. R – 12
B. R – 22
C. R – 717
D. R – 113List II
1. Trichlorotrifluorethane (CCl2FCClF2)
2. Difluoro monochloro methane (CHF2)
3. Ammonia (NH3)
4. Difluoro dichloro methane(CCl2F2)
b. A→4, B→2, C→3, D→1
c. A→3, B→1, C→4, D→2
d. A→4, B→1, C→3, D→2
asked in Mechanical Paper-1, 2001
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