Undersized suction lines: A) Can reduce system efficiency ...

[penguins]

Undersized suction lines:
 
  A) Can reduce system efficiency because of a high pressure drop.
  B) Can cause poor oil return because of high refrigerant velocity.
  C) Can cause poor oil return because of low refrigerant velocity.
  D) Can reduce system efficiency because of a low pressure drop.

Question 2

How can a technician determine when a filter drier is stopped up and needs changing?
 
  A) The pressure drop will exceed 2 psig. B) The drier will vibrate violently.
  C) The clogged filter flag will pop out. D) The indicating chemical disc will change color.

[mcni194]

Answer to Question 1

A

Answer to Question 2

A