1. Electric resistance coils
2. Hot water passed through coils
3. Steam passed through coils
4. All of the above
All of the above
1. Increases COP
2. Reduce cooling
3. Increases work of compression
4. Reduce condenser size
Increases COP
1. Below which a gas is always liquefied
2. Above which a gas will never be liquefied
3. Above which a gas will explode
4. Below which a gas does not obey gas laws
Above which a gas will never be liquefied
1. More than critical temperature
2. Less than critical temperature
3. Equal to critical temperature
4. None of these
Less than critical temperature
1. Below which a liquid will remains a liquid
2. Above which a liquid will remains a liquid
3. Above which a liquid will turn into vapour
4. Above which a liquid will explode
Above which a liquid will remains a liquid
1. 2
2. 3
3. 4
4. 6
2
1. More
2. Equal
3. Less
4. None of these
More
1. Gives quit operator
2. Cools below 00C
3. Requires little power
4. All of the above
All of the above
1. See back effect
2. Thomson effect
3. Peltier effect
4. Thermocouple effect
See back effect
1. Increases as atmospheric temperature
2. Increases as air gets wet
3. Increases as air becomes drier
4. Remains constant always
Increases as air becomes drier