Technician A says a multiple-pass plate and fin evaporator can be spotted by the use of an oil return line. Technician B says the multiple-pass plate and fin evaporator has been replaced by a later design. Who is right?

All of the following statements about tube and fin coils are true, except:

All of the following statements about axial compressors are true, except:

The ambient air switch is designed to disengage the compressor clutch when the temperature is at all of the following except:

The most likely condition under which the low pressure cutoff switch would cut off current to the compressor clutch is:

A reed valve is opened and closed by:

A patient with severe blood loss (hypovolemia) would show which compensatory response?

Which of the following air doors is used to select airflow from the heater outlet or air conditioner vents?

During systole, which valves are CLOSED?

A patient has aortic valve stenosis (narrowed opening). Predict the effect on the left ventricle: