engineering recuitment NCL Assistant Foreman (Trainee) Mock Test 2024 Refrigeration and Air Conditioning Refrigeration Cycles and Devices Heat Engine, Heat Pump and Refrigerator
Consider the following statements:
1. Heat pumps and air conditioners have the same mechanical components.
2. The same system can be used as heat pump in winter and as air conditioner in summer.
3. The capacity and efficiency of a heat pump fall significantly at high temperatures.
Which of the above statements are correct?
1
1 and 2 only
2
1 and 3 only
3
2 and 3 only
4
1, 2 and 3