What effect do noncondensable gases have on system performance? ...

[RRMR]

What effect do noncondensable gases have on system performance?
 
  A) They cause an increase in head pressure and a decrease in capacity.
  B) They cause a decrease in head pressure and an increase in capacity.
  C) Noncondensables do not affect condenser pressure because they do not condense.
  D) They cause a decrease in both head pressure and capacity.

Question 2

Where is the mixed-air temperature measure on an air handler?
 
  A) Outside by the fresh air intake
  B) In the VAV box where the conditioned air and room air are mixed
  C) Inside near the return air grille
  D) In the mixing box

[xMRAZ]

Answer to Question 1

A

Answer to Question 2

D

[RRMR]

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