HAC vocabulary quiz 19

What does SEER stand for in the context of residential central air conditioners?

• Specific Energy Efficiency Rating

• Seasonal Energy Efficiency Ratio

• Systematic Energy Efficiency Report

• Standard Environmental Efficiency Ratio

What is the purpose of a sight glass installed in the liquid line of a refrigeration system?

• To measure the temperature of the refrigerant

• To regulate the flow of refrigerant

• To detect vapor in the liquid refrigerant

• To monitor the pressure of the refrigerant

What is the specific heat of a substance?

• The volume of a substance per unit of mass

• The reciprocal of density

• The amount of heat necessary to change the temperature of one pound of a substance 10 F

• The heat capacity of a substance per unit mass

What is the specific volume of a substance?

• The volume of a substance per unit of mass

• The reciprocal of density

• The heat capacity of a substance per unit mass

• The amount of heat necessary to change the temperature of one pound of a substance 10 F

What is slugging in the context of a refrigeration system?

• A technique to measure the pressure of the refrigerant

• A method of detecting vapor in the liquid refrigerant

• A process of regulating the flow of refrigerant in the system

• A condition in which a quantity of liquid enters the compressor causing hammering and possible compressor damage