Reversing valves are used to change the ____ of refrigerant in a heat-pump system.

a. amount of flow
b. temperature
c. pressure
d. direction of flow


d. direction of flow

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Two technicians are diagnosing a poorly running engine with no stored DTCs. When the MAF sensor is unplugged, the engine runs better. Technician A says that this means the MAF is supplying incorrect air flow information to the PCM. Technician B says that this indicates the PCM is defective. Who is right?

A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B

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What should be done first before removing the starter motor from the vehicle?

A) Disconnect battery cables B) Disconnect starter relay C) Remove starter solenoid D) Remove battery

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An evaporative condenser

A) Works by evaporating water to cool the condenser coil B) Cools air through the evaporation of refrigerant inside the condenser C) Is really just another name for evaporator D) Works by evaporating refrigerant to cool the condenser coil

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Describe how the type of dielectric material affects the capacitance of a capacitor. Describe a dialectric constant and provide some examples.

What will be an ideal response?

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