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roddyrodrod roddyrodrod
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6 years ago
What is the most common form of switching used for mechanical thermostats?
 
  A) Mercury bulb B) Spring and bellows
  C) Warped discs D) Magnets


[Ques. 2] On PSC multi-speed indoor blowers the wire that is wired to power regardless of speed is the ________ wire.
 
  A) Common B) Blue C) Orange D) Red


[Ques. 3] What use is THHN wire suitable for?
 
  A) Underground burial B) Dry or damp locations
  C) Wet or oily locations D) Dry locations only


[Ques. 4] Which type of thermostats provide the closest temperature control?
 
  A) Mechanical line voltage thermostats
  B) There is no difference in the ability of different thermostats to maintain close temperature control.
  C) Mechanical low-voltage thermostats
  D) Electronic low-voltage thermostats


[Ques. 5] Vertical mount fan motors require ________ to handle the force of the shaft pushing against the end bells of the motor.
 
  A) flat washers B) thrust washers C) thrust bearings D) bronze bearings
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bcoleman2353bcoleman2353
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6 years ago
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roddyrodrod Author
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#2
6 years ago
Thanks a whole bunch
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