Pressure/temperature

A pressure/temperature chart tells us how much superheat and subcooling there is.

• True

• False

A pressure/temperature chart can only tell us the temperature of a saturated refrigerant

• True

• False

A pressure/temperature chart can tell us what gauge pressure should be.

• True

• False

Gauge pressure is always saturation pressure

• True

• False

The type of refrigerant used in a system can be identified based on its gauge pressure and temperature

• True

• False

If gauge pressures and corresponding temperatures do not match a particular refrigerant, then it is likely that the system has become contaminated by air

• True

• False

The mixing of two different refrigerants can result in temperature and gauge readings that do not correspond to a single refrigerant in the pressure/temperature chart

• True

• False

Charles Law tells us that when the temperature of a gas increases and its pressure stays the same, its volume will drop

• True

• False

Boyles Law tells us that if temperature stays the same and pressure drops then the volume of a gas gets bigger

• True

• False

You can use gauge pressure readings when calculating with gas laws

• True

• False