1. Air-cooled heat exchangers:
- are less expensive than water-cooled heat exchangers.
- are not as efficient as water-cooled heat exchangers.
- require a water hookup.
- 2 to 4 watts per square inch.
- 4 to 6 watts per square inch.
- 8 to 10 watts per square inch.
- 1 to 2 times pump flow in gpm.
- 2 to 3 times pump flow in gpm.
- 4 to 6 times pump flow in gpm.
- hold enough fluid for the circuit.
- deaerate the returned fluid.
- cool the fluid.
- returns below fluid level.
- returns above fluid level.
- is on the same side as the suction line.
6. Inlet and return lines should:
- terminate below fluid level.
- terminate above fluid level.
- terminate anywhere that is convenient.
- True
- False
- pump on top.
- pump alongside.
- pump underneath.
- wasted energy.
- too large electric motor.
- oversize piping and valves.
- sized 3 to 4 times compressor flow in cfm.
- sized 6 to 8 times compressor flow in cfm.
- the earth's atmosphere.