Superheat and Subcool Quiz 1.0

What two temperatures are needed to find target super heat?

• Return air dry-bulb temperature and condenser ambient air wet-bulb temperature

• Return air wet-bulb temperature and condenser ambient air dry-bulb temperature

What is the formula for actual super heat?

• suction line temp. - compound gauge saturated temperature

• liquid line temp. - compound gauge saturated temperature

• suction line temp + compound gauge saturated temperature

• liquid line temp. + compound gauge saturated temperature

What does saturated evaporator temperature refer to?

• The temperature at which vapor becomes a gas

• The temperature at which a gas(Vapor) becomes a liquid

• The temperature at which a liquid becomes a gas(Vapor)

Which line is the temperature taken from when checking for super heat?

• suction line with the system running and the refrigerant is in a low-pressure & temperature state.

• liquid line with system off and pressures and temperatures have equalized

• Suction line with the system off and pressure and temperatures have stabalized

• liquid line with the system running and the refrigerant is in a high-pressure & temperature state.

If your target super heat is 10 degrees but your calculations show 5 then is the system undercharged or overcharged?

• Undercharged

• Overcharged

What kind of chart is used to convert the pressure reading used in finding super heat to a temperature?

• Number chart

• Pressure-temperature chart

• Sliding superheat chart

• Subcool adjustment chart

What is the formula for subcool?

• High-side gauge temperature + liquid line temperature

• Low-side gauge temperature - liquid line temperature

• Low-side gauge temperature + liquid line temperature

• High-side gauge temperature - liquid line temperature

Saturated condenser temperature means what and can be found where?

• The temperature at which a gas becomes a liquid.

• The temperature at which a liquid becomes a gas.

• The temperature at which a gas is running out.

• The temperature at which a gas becomes a combustable.

Which line is the line temp taken and what is the state of the refrigerant for subcool?

• The liquid line with system running and refrigerant at high-temperature & pressure liquid

• The suction line with system off. Refrigerant is equalized.

• The liquid line with system running and refrigerant at a low pressure & temperature.

• The suction line with the system running and refrigerant at high-temperature and pressure vapor

The subcooling target is 10 degrees and actual subcooling measured is 5 degrees. Is the system overcharged or undercharged?

• overcharged

• undercharged