29. Air refrigeration cycle is used in
A.Domestic refrigerators
B.Commercial refrigerators
C.Air conditioning
D.Gas liquefaction

---

30. In a vapour compression cycle, the refrigerant immediately after expanc;on valve is
A.Liquid
B.Sub-cooled liquid
C.Saturated liquid
D.Wet vapour

---

31. The vapour pressure of refrigerant should be
A.Lower than atmospheric pressure
B.Higher than atmospheric pressure
C.Equal to atmospheric pressure
D.Could be anything

---

32. For better COP of refrigerator, the pressure range corresponding to temperature in evaporator and condenser must be
A.Small
B.High
C.Euqal
D.Anything

---

33. The bank of tubes at the back of domestic refrigerator are
A.Condenser tubes
B.Evaporator tubes
C.Refrigerant cooling tubes
D.Capillary tubes

---

34. The higher temperature in vapour compression cycle occurs at
A.Receiver
B.Compressor discharge.
C.Evaporator
D.Condenser discharge

---

35. Highest temperature encountered in refrigeration cycle should be
A.Near critical temperature- of refrigerant
B.Above critical temperature
C.At criticl.. temperature
D.Much below critical temperature

---