Which type of space heater is most likely to NOT pass a local inspection?
A) Catalytic B) Gravity operated C) Vented D) Unvented
[Ques. 2] Symptoms of an inefficient compressor include:
A) High suction pressure, high discharge pressure, and low amp draw.
B) High suction pressure, low discharge pressure, and low amp draw.
C) Low suction pressure, low discharge pressure, and high amp draw.
D) Low suction pressure, high discharge pressure, and high amp draw.
[Ques. 3] When troubleshooting an induced-draft gas furnace, what should be checked if the induced-draft fan comes on but the igniter is never energized?
A) Check the draft pressure switch to see if it is closed.
B) Check the microamp signal of the flame sensor.
C) Check the incoming gas pressure.
D) Check the control transformer.
[Ques. 4] A weeping relief valve on a hot water boiler may be an indication of:
A) A water-logged expansion tank problem.
B) Low return water temperature.
C) An extinguished pilot light.
D) A circulating pump that is running continuously.
[Ques. 5] When a geothermal heat pump system uses antifreeze in the loop, how is antifreeze added to the loop?
A) By pouring the antifreeze in the loop after it is connected
B) By temporarily connecting a purge unit
C) By pouring the antifreeze in the loop before it is connected
D) By pumping the antifreeze in under pressure
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