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ASE Heating and Air Conditioning Practice Test
Multiple Choice
ASE Heating and Air Conditioning
Multiple Choice Practice Test
Question 1 of 3
57% Get this Question Right
All of the following could cause poor heating performance except:
A
Heater core return hose much cooler than inlet hose
B
Radiator coolant temp below 150 degrees
C
stuck open heater control valve
D
Defective temperature blend door actuator
A stuck open heater control valve woulc cause problems when heat is not wanted, but because coolant flow to the heater core is not interrupted, the heater valve would not cause poor performance.
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