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Dual Duct System - answer-A system in which hot air and cold air are supplied
by separate ducts and mixed at each controlled space to provide the desired
supply air temperature. This method consumes a great deal of energy.
Muiltizone System - answer-an a/c system in which the zone control is
obtained by mixing hot and cold air at the unit in response to a room
thermostat
Load Calulations - answer-take the sensible heat and the latent heat into
consideration
, In commercial buildings heat generated by lights does not seriously affect the
control of the heating system - answer-false
the human body's feeling of well being depends upon.... - answer-The body's
metabolism
which of the following natural laws has the greatest bearing on the science of
air conditioning? - answer-Boyles' Law, Charles' Law, Dalton's Law
Why is a pitch pocket commonly used? - answer-To protect the piping and seal
the roof from refrigeration lines passing through it
Which of the following is an evaporative type condenser and what governs its
cooling? - answer-a cooling tower governed by web bulb temperature
on an evaporative condenser what is the purpose of the eliminator - answer-to
separate the moisture carry over
specific heat of a substance - answer-the amount of heat necessary to raise the
temperature of one pound of a substance one degree Fahrenheit
Latent Heat - answer-the amount of heat necessary to change a liquid to a
vapor with no change in temperature
The difference between a pump, a fan and a compressor is.... - answer-pumps
pump liquid, fans and compressors pump air