Domestic refrigerator usually works on the _____________ refrigeration cycle?

Related Mcqs:

1. Pressure-enthalpy chart is useful in refrigeration. The change in internal energy of an ideal fluid used in ideal refrigeration cycle is_____________________?

   A. Positive B. Negative C. Zero D. Infinity...

2. A refrigeration cycle is a reversed heat engine. Which of the following has the maximum value of the co-efficient of performance (COP) for a given refrigeration effect ?

   A. Vapor compression cycle using expansion valve B. Air refrigeration cycle C. Vapor compression cycle using expansion engine D. Carnot refrigeration cycle...

3. A refrigeration cycle is the same as a _____________ cycle?

   A. Turbine B. Heat engine C. Reversed heat engine D. None of these...

4. Refrigeration capacity of a household refrigerator may be round about _____________ tons?

   A. 0.15 B. 1.5 C. 4.5 D. 6.5...

5. COP of a refrigerator drawing 1 kW of power per ton of refrigeration is about____________________?

   A. 0.5 B. 3.5 C. 4.5 D. 8.5...

6. A refrigerator works on the principle of _____________ law of thermodynamics?

   A. Zeroth B. First C. Second D. Third...

7. What is the value of maximum COP in case of absorption refrigeration, if refrigeration provided is at temperature, TR (where, T1 and T2 are source & surrounding temperatures respectively.) ?

   A. TR/(T2 – TR) × (T1 – T2)/T1 B. TR/(T2 – TR) × T1/(T1 – T2) C. TR/(T1 – TR) × (T1 – T2)/T1 D. None of these...

8. A domestic refrigerator has a/an ____________ cooled condenser?

   A. Water B. Air C. Evaporative D. Gas...

9. The Carnot co-efficient of performance (COP) of a domestic air conditioner compared to a household refrigerator is__________________?

   A. Less B. More C. Same D. Dependent on climatic conditions...

10. Which of the following units is not present in both the vapor compression refrigeration system and absorption refrigeration system ?

    A. Expansion valve B. Condenser C. Refrigerator D. Compressor...