As the temperature of the air sample increases, the amount of moisture that a given air sample can hold greatly increases.
Answer the following statement true (T) or false (F)
True
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Power is generated by using high-pressure air and a turbine. Air, flowing at 2 kg/s enters an insulated turbine at 1200 kPa and 400ºC and exits at 120 kPa. Assume negligible kinetic energy change and constant specific heat. The maximum power produced by the turbine is nearest:
A) 420 kW B) 570 kW C) 650 kW D) 710 kW
Which of the following statements is true regarding waterless urinals?
A) Some codes jurisdictions prohibit their use. B) They are required in the state of Arizona. C) They are required by LEED.
In a two piece, articulating piston assembly in a commercial diesel engine, what material is typically used for the crown?
A. aluminum alloy B. cast iron alloy C. ceramic fiber D. Ni-Resist
Split-system heat pumps have a third service valve that is not connected to either refrigerant line. This extra valve:
A) Is a backup in case one of the other service valves quits functioning. B) Is always connected to the low side of the system regardless of the operating cycle. C) Is used to read the defrost pressures during the defrost cycle. D) Is only needed during the cooling cycle.