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Kwilliams85 Kwilliams85
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6 years ago
How much would system capacity be increased by subcooling the liquid refrigerant leaving the condenser an extra 12F?
 
  A) Subcooling does not increase system capacity. B) 12F  1/F = 12 increased capacity
  C) 12F  5/F = 60 increased capacity D) 12F  0.5/F = 6 increased capacity


[Ques. 2] What is the difference between schedule 40 and schedule 80 iron pipe?
 
  A) Schedule 40 has a heavier wall than schedule 80.
  B) Schedule 80 is easier to bend than schedule 40.
  C) Schedule 80 has a heavier wall than schedule 40.
  D) They have a different metallurgical composition.


[Ques. 3] Galvanized iron pipe has been dipped in molten zinc to make it:
 
  A) Resistant to water. B) Resistant to heat.
  C) More aesthetically appealing. D) Corrosion resistant.


[Ques. 4] Which of the following categories of pipe is black pipe?
 
  A) Gold pipe B) Aluminum pipe C) Iron pipe D) Copper pipe


[Ques. 5] What material is most commonly used today for cold-water piping in houses?
 
  A) PVC B) Galvanized iron pipe
  C) CPVC D) Copper
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MarinMarin
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6 years ago
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Kwilliams85 Author
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6 years ago
Smart ... Thanks!
dedricgard
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Yesterday
You make an excellent tutor!
Lawson1981
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2 hours ago
Thanks for your help!!
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