The domestic refrigerator uses following type of compressor ____________________?

Related Mcqs:

1. 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.

2. 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

3. Rating of a domestic refrigerator is of the order of__________________?

   A. 0.1 ton
   B. 5 tons
   C. 10 tons
   D. 40 tons
   E. 100 tons

4. The bank of tubes at the back of domestic refrigerator are _________________?

   A. condenser tubes
   B. evaporator tubes
   C. refrigerant cooling tubes
   D. capillary tubes
   E. throttling device

5. The vapor compression refrigerator employs the following cycle_________________?

   A. Rankine
   B. Carnot
   C. Reversed Rankine
   D. Brayton
   E. Reversed Carnot

6. The refrigerant for a refrigerator should have ___________________?

   A. high sensible heat
   B. high total heat
   C. high latent heat
   D. low latent heat
   E. low sensible heat

7. 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
   E. under some conditions small and under some conditions high

8. In refrigerator, liquid receiver is required between condenser and flow controlling device, if quantity of refrigerant for system is_____________________?

   A. less than 2 kg
   B. more than or equal to 3.65 kg
   C. more than 10 kg
   D. there is no such consideration
   E. pone of the above

9. Condensing temperature in a refrigerator is the temperature_________________?

   A. of cooling medium
   B. of freezing zone
   C. of evaporator
   D. at which refrigerant gas becomes liquid
   E. condensing temperature of ice

10. Formation of frost on evaporator in refrigerator ________________?

    A. results in loss of heat due to poor heat transfer
    B. increases heat transfer rate
    C. is immaterial
    D. can be avoided by proper design
    E. decreases compressor power