All of the following conditions could cause poor passenger compartment heating system performance EXCEPT:
A. An air pocket in the heater core.
B. Thermostat stuck in the closed position.
C. A heater control valve stuck in the closed position.
D. A restricted heater core.
Answer: B
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a. oil b. solvents c. ozone d. high pressure
The published SEER rating of a unit is accurate:
A) Only at the AHRI "A" design condition. B) Only with an AHRI match coil. C) With any coil under any condition. D) With any coil the unit is connected to.
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A. quality B. power factor C. bandwidth D. resonance
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A. trade in value B. flat rate C. highest dollar D. salvage value