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Author Question: How do the three position service valves differ from other valves? A) They have no closed ... (Read 100 times)

vHAUNG6011

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How do the three position service valves differ from other valves?
 
  A) They have no closed position. B) They are leakproof, if undamaged.
  C) They have multiple closed positions. D) They are spring-loaded.

Question 2

What is the refrigeration effect of a system if the liquid entering the evaporator has an enthalpy of 60 BTU/lb and the vapor leaving the evaporator has an enthalpy of 110 BTU/lb?
 
  A) 110 BTU/lb + 60 BTU/lb = 170 BTU/lb B) 110 BTU/lb/60 BTU/lb = 1.83 BTU/lb
  C) 110 BTU/lb - 60 BTU/lb = 50 BTU/lb D) 110 BTU/lb



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peilian

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Answer to Question 1

A

Answer to Question 2

C




vHAUNG6011

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Reply 2 on: Jul 24, 2018
:D TYSM


meow1234

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Reply 3 on: Yesterday
Excellent

 

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