What is one way a technician can make IAQ happen safely and effectively?
A) Let customers know about your company's procedures.
B) Provide solutions to address a customer's concerns.
C) Be proactive by performing troubleshooting on your own without guidance.
D) Get a job done as quickly as possible.
[Ques. 2] What may be safely used to check a system for leaks at pressures of around 100 psig?
A) Nitrogen B) Oxygen C) Neon D) Hydrogen
[Ques. 3] The evaporator in a low-pressure chiller:
A) Is generally higher than the condenser pressure. B) Operates between 10 and 50 psig.
C) Operates in a vacuum. D) Operates between 5 and 10 psig.
[Ques. 4] The emergency heat setting on a heat pump thermostat:
A) Increases the compressor speed to produce more heat.
B) Energizes the auxiliary heat on first stage and does not turn on the compressor and outdoor fan.
C) Operates both the compressor and auxiliary heat to produce the maximum amount of heat possible.
D) Notifies the installing contractor that the system needs immediate service.
[Ques. 5] The resistance of an AC magnetic device will have ________ resistance than Ohm's law predicts.
A) a much lower B) the same C) a much higher
Quick Reply
