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skyleton skyleton
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6 years ago
Single phase AC power is used:
 
  A) Only in residences. B) In both residential and commercial buildings.
  C) Only in commercial buildings. D) Only in Europe.

 Q. 2

A Wye three phase power supply provides:
 
  A) 120 volts between the legs. B) 208 volts between the legs.
  C) 24 volts between the legs. D) 240 volts between the legs.

 Q. 3

What is the normal pressure range for high pressure gauges made for use on systems with older refrigerants such as R-22 or R-134a?
 
  A) 0 - 30 Hg vacuum and 0 - 120 psig pressure B) 0 - 800 psig pressure
  C) 0 - 500 psig pressure D) 0 - 30 Hg vacuum and 0 - 350 psig pressure
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Ron.MRon.M
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#1
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6 years ago
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skyleton Author
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#2
6 years ago
Excellent answers
wrote...
#3
6 years ago
Thank you
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