Can someon help me out with the HVAC multiple choise questions? I will rate it w

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Can someon help me out with the HVAC multiple choise questions? I will rate it with high score if the answers make sence to me. I appriciate it.

Thanks for help

For the questions below, circle the best answer: 1a. Why does the University use ice storage at the central plant north of the AME building? A To allow the refrigeration chillers to run more efficiently. B. Ice is easier to store than water. C. Allow the refrigeration chillers to rest when electrical demand is high. D. The campus needs the lower temperature water to cool buildings. 1b. If site elevation and dry bulb temperature hold constant, but humidity increases, then A. Air becomes less dense. B. Air becomes more dense. C. Sensible heat is removed from the air. D. Sensible heat is added to the air. 1c. If you operate a centrifugal pump with its discharge valve fully closed (no fluid flow) A. It will experience its highest horsepower need and possibly burn out the motor. B. It will likely cavitate because the NPSH is too low. C. It will exceed the prsure rating of the pump and fail. D. It will experience its lowest horsepower need and possibly just heat water. 1d. You should attempt to size a pump motor for non-overloading characteristics because A. It may keep you from damaging the motor if someone allows the discharge pressure to drop B. It uses less copper in the motor windings, therefore less weight C. Provides a safety margin if you undersize the pump. D. Usually the least expensive option when purchasing the motor/pump package 1e. The analogy of a truck delivering 10,000 gallons of fuel while using 10 gllons of fuel to make the delivery is most like: A. B. C. D. Lowering the carbon footprint of a process The Montreal protocol Bigger equipment can often operate at higher efficiencies Coefficient of operating performance

Explanation / Answer

1.a ANS:A

b.ANS:C

c.ANS:C

d.ANS:D

e. ANS:B

f.ANS:A

g.ANS:A

h.ANS:D

i.ANS:C

j.ANS:B

k.ANS:A

l.ANS:D

m.ANS:C

n.ANS:B

o.ANS:C

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