How have newer versions of the check valve been modified?
A) They are now part of metering devices.
B) The metering devices are now inside the check valves.
C) They are now insulated.
D) One check valves can now connect to two metering devices.
[Ques. 2] What is a wet-bulb temperature reading?
A) A temperature measured with a water-soaked wick around the thermometer bulb
B) A temperature reading taken by submersing the thermometer bulb in a liquid
C) A temperature measured after dipping the thermometer bulb in water
D) A temperature reading taken by placing the thermometer bulb in a stream of flowing liquid
[Ques. 3] Why were split systems developed?
A) Splitting the controls into two panels provides redundancy.
B) Splitting the airflow between two pieces allows for more airflow.
C) Splitting the refrigerant flow between two systems reduces line size.
D) It is not always practical to have all the components of a large air-cooled system located in a single box.
[Ques. 4] The IGCC acts as an overlay on other existing codes, including the provisions of the ________ as a baseline.
A) IGCC B) IECC C) LEED D) EICC
[Ques. 5] What is the temperature rise of a furnace with a supply air temperature of 130F and a return air temperature of 75F, operating in an ambient temperature of 50F?
A) 75F - 50F = 25F temperature rise B) 50F + 75F = 125F temperature rise
C) 130F - 75F = 55F temperature rise D) 130F - 50F = 80F temperature rise
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