Mechanical Engineering :: Refrigeration and Air Conditioning
- Which of the following statement is correct?
- Which of the following statement is correct?
- For ammonia refrigerating systems, the tubes of a shell and tube condenser are made of
- R-12 is generally preferred over R-22 in deep freezers since
- A good refrigerant should have
- Pick up the wrong statement. A refrigerant should have
- For proper refrigeration in a cabinet, if the temperature and vapour pressure difference between cabinet and atmosphere is high, then
- The ratio of actual mass of water vapour in a given volume of moist air to the mass of water vapour in the same volume of saturated air at the same temperature and pressure, is called
- The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure, is called
- The capillary tube, as an expansion device, is used in
Whatsapp
Facebook
|
A.
In vapour absorption refrigerator, the compression of refrigerant is avoided. |
|
B.
Sub-cooling can be achieved by circulating more quantity of cooling water through the condenser. |
|
C.
In vapour compression refrigeration, the vapour is drawn in the compressor cylinder during its suction stroke and is compressed adiabatically during the compression stroke. |
|
D.
All of the above |