A heat pump thermostat will typically attempt to start the electric heat to supplement the heat pump ...

A heat pump thermostat will typically attempt to start the electric heat to supplement the heat pump when
  the setpoint is _____.
 
  a. 1F above the room temperature
  b. 1F below the room temperature
  c. 2F to 3F above the room temperature
  d. 4F to 5F above the room temperature

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[Ques. 2] Which of the following statements is correct?
 
  a. The three most critical items that should appear on all technician documents are the make, model, and
  serial number of the unit serviced.
  b. Documents completed by a technician cannot be used in legal proceedings.
  c. The customer's signature on a service ticket is of very little importance.
  d. Past service documentation is of little or no value when a system begins having performance
  problems.

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[Ques. 3] Most electronic thermostats maintain their programming when the batteries are removed using a built-in
  _____.
 
  a. diode
  b. resistor
  c. light cell
  d. capacitor

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[Ques. 4] The most common heating fuel in the United States is _____.
 
  a. gas
  b. fuel oil
  c. electricity
  d. coal

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[Ques. 5] Once the hantavirus has entered the lungs, the survival rate is less than _____.
 
  a. 10 percent
  b. 30 percent
  c. 40 percent
  d. 50 percent