When troubleshooting a residential air conditioning system, the technician notices the condenser fan motor operating, but the compressor is not. What is the most likely cause?
A. high-voltage circuit breaker for condensing unit is tripped
B. high-pressure switch is open
C. defective compressor
D. defective contactor
Answer: C
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What types of circuits are used when wiring houses?
A) Series B) Conducting C) Parallel D) Grounding
Abraham Lincoln won the 1860 Republican party presidential nomination in part because he
A. had been a strong supporter of William Seward. B. had never taken a stand on the issue of slavery in the territories. C. had made fewer enemies than front-runner William Seward. D. had more political experience than his opponents. E. None of these choices are correct.
What is the purpose of the vehicle module scan report?
What will be an ideal response?
What advantage is there to maintaining a negative pressure on the heat exchanger?
A) Combustion air can only be drawn into the oil burner if a negative pressure is maintained B) Safety, to insure combustion products do not leak out into the air stream C) The vent will not work unless the heat exchanger is at a negative pressure D) The negative pressure helps draw in return air from the house, increasing efficiency