What is the purpose of a plenum thermostat?
A) To control the plenum heat strips that prevent the supply air temperature from dropping too low
B) To control the heating and cooling equipment to maintain the desired temperature in the supply plenum at all times
C) To cycle off the heating or cooling equipment if the air gets too hot or cold in the plenum when only one or two zones are calling
D) To control the zone dampers based on the plenum temperature
C
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What is the latest Navistar diagnostic software introduced in 2007 known as?
A. Master Diagnostics (MD) B. Electronic Technician (ET) C. InSite D. ServiceMaxx (SM)
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What is the primary advantage of a remote air cooled condenser on an ice machine?
A) The compressor noise is reduced. B) Installation is easier. C) The heat generated by the ice machine is expelled outside instead of in the kitchen. D) The ice freezes faster.
Shearing removes a sheep's natural insulation, which may cause a decrease in energy requirements.
Answer the following statement true (T) or false (F)