engineering recuitment ISRO Scientist Mechanical Mock Test Refrigeration and Air Conditioning Refrigeration Cycles and Devices Vapour Absorption (V-A) Cycle
Consider the following statements
1. An ammonia absorption refrigerator has a COP of more than 3 and is superior to a vapour compression system.
2. Ammonia absorption machines are preferable where waste heat is available from an existing source.
3. Absorption refrigerator has no moving and hence needs little maintenance.
4. The partial pressure of ammonia vapor varies, being high in the condenser and low in the evaporator.
1
3 and 4
2
1, 2, and 3 only
3
2, 3, and 4 only
4
1 and 4 only