Clapeyron equation is applicable for registration at___________________?

Related Mcqs:

1. Clapeyron equation is a relation between___________________?

   A. temperature, pressure and enthalpy
   B. specific volume and enthalpy
   C. temperature and enthalpy
   D. temperature, pressure, and specil volume
   E. temperature, pressure, specific volur and’enthalpy

2. Allowable pressure on high-pressure side or ammonia absorption system is of the order of_________________?

   A. atmospheric pressure
   B. slightly above atmospheric pressure
   C. 2-4 bars
   D. 5-6 bars
   E. 7-10 bars

3. Critical temperature is’ the temperature above which _____________________?

   A. a gas will never liquefy
   B. a gas will immediately liquefy
   C. water will evaporate
   D. water will never evaporate
   E. none of the above

4. Critical pressure of a liquid is the pressure_________________?

   A. above which liquid will remain liquid
   B. above which liquid becomes gas
   C. above which liquid becomes vapour
   D. above which liquid becomes solid
   E. at which all the three phases exist together

5. In a flooded evaporator refrigerator, an accumulator at suction of compressor is used to___________________?

   A. collect liquid refrigerant and prevent it from going to compressor
   B. detect liquid in vapour
   C. superheat the vapour
   D. collect vapours
   E. increase refrigeration effect

6. Super heating in a refrigeration cycle __________________?

   A. increases COP
   B. decreases COP
   C. COP remains unaltered
   D. other factors decide COP
   E. unpredictable

7. Most of the domestic refrigerators work on the following refrigeration system _________________?

   A. vapour compression
   B. vapour absorption
   C. carnot cycle
   D. electrolux refrigerator
   E. dual cycle

8. The suction pipe diameter of refrigerating unit compressor in comparison to delivery side is_________________?

   A. bigger
   B. smaller
   C. equal
   D. smaller/bigger depending on capacity
   E. unpredictable

9. Which of the following is not a desirable property of a refrigerant_________________?

   A. high triiscibility with oil
   B. low boiling point
   C. good electrical conductor
   D. large latent heat
   E. non-inflammable

10. Absorption system normally uses the following refrigerant___________________?

    A. Freon-11
    B. Freon-22
    C. C02
    D. S02
    E. ammonia