Exam 62: Heating and Air-Conditioning Components and Operation

Where in the air conditioning system is the refrigerant a high pressure liquid?

A main source of heat used to warm the passenger compartment is ________.

Which position on the climate control panel should the driver select to avoid having the air-conditioning compressor turn on?

Technician A says that any technician that handles automotive refrigerant must be certified in knowledge of regulations by an EPA approved agency. Technician B says that recycling equipment must be properly approved. Who is correct?

Which of the following is NOT a subsystem in a modern automotive HVAC system?

On a TXV system, the thermal sensing bulb is located at the ________.

What is the function of the desiccant bag inside an accumulator?

The material used to absorb moisture inside an AC system is called ________.

Which type of refrigerant hose is used with an R-134a system?

When heating a substance, latent heat is ________.

Clear water is observed dripping out from beneath the vehicle. Technician A says that is normal. Technician B says that the evaporator housing is defective and should be replaced. Which technician is correct?

What are the state(s) of the refrigerant in the accumulator-drier?

The ozone layer is in which of earth's atmospheric layers?

When the defrost setting is selected the air conditioning compressor operates.

Which of the following is NOT a function of the expansion valve?

Where in the air conditioning system is the refrigerant a low pressure gas?

Technician A says that heat is measured in degrees. Technician B says that temperature is measured in degrees. Which technician is correct?

A front-wheel drive vehicle has a broken condenser line. What other vehicle component may also be defective that could have caused the condenser line to break?

Compressing a vapor ________.

The three states of matter are ________.