Time Left - 12:00 mins
BARC 2021 ME: Refrigeration & Air conditioning Nuclear Quiz 2
Attempt now to get your rank among 366 students!
Question 1
In ammonia water absorption system heat is supplied to generator by condensing steam at 0.2 MPa, 120.2oC. The Temperature to be maintained in refrigerator is -10oC and surrounding temperature is 30oC . Find Maximum COP of refrigerator.
Question 2
A vapour absorption refrigeration system works with generator, ambient and evaporator temperature as 360 k, 310 k and 260 k respectively. If the evaporator temperature falls to 250 k what should be the generator temperature in order to operate the system with same COP ?
Question 3
Air after passing from a heating coil of temperature 45℃ is obtained at 38℃. Calculate inlet air temperature, if the bypass factor of the coil is 0.35.
Question 4
During chemical dehumidification process of air _______.
Question 5
There is a refrigeration machine which have coefficient of performance equal to 1.5. It is used to remove heat at the rate of 1000 kJ/min. The power required for this machine is:
Question 6
Which of the following statements is incorrect with respect to air standard refrigeration cycle
Question 7
Air is compressed in a compressor with isentropic efficiency 85%. The inlet and outlet temperature of air is 300 k and 430 k respectively. The theoretical temperature at the outlet of compressor will be (in K)
Question 8
Condensing temperature in a refrigerator is the temperature ____________.
Question 9
Heat Rejection Factor (H.R.F) is given by
(where the COP is that of a refrigerator)
Question 10
The un-desirable property of a refrigerant is
- 366 attempts
- 2 upvotes
- 3 comments
Aug 10ESE & GATE ME
