Solar heat gain is considered when calculating:
A) The heat gain on all the house surfaces. B) The heat loss of the windows.
C) Both the heat gain and loss of the windows. D) The heat gain of the windows.
[Ques. 2] A technician needs to check the heating operation of a heat pump that has no gauge access ports. The technician should start by:
A) Installing bolt-on piercing valves on both the gas line and the liquid line.
B) Recovering the system refrigerant using piercing pliers and installing permanent braze-on service valves.
C) Checking the temperature rise across the indoor coil.
D) Installing bolt-on piercing valves on both the high side and low side of the compressor.
[Ques. 3] How does the water vapor from the lithium bromide solution return to the evaporator?
A) It condenses in the heat exchanger. B) It passes through the condenser.
C) It condenses in the chiller. D) It passes through the chiller.
[Ques. 4] Where are packaged water-source heat pumps normally located?
A) Outside near the water source B) In the garage
C) Inside the building D) Outside close to the building power entrance
[Ques. 5] When testing combustion efficiency, the technician should measure:
A) Stack temperature, ambient temperature, and CO2 flue gas percentage.
B) Stack temperature, flue gas density, and flue gas water percentage.
C) Oil pump pressure, stack temperature, ambient temperature, and CO2 flue gas percentage.
D) Ambient temperature, return air temperature, supply air temperature, and stack temperature.
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