Why is it most important to take special precautions when working ...

[saliriagwu]

Why is it most important to take special precautions when working with Schrader valves?
 
  A) They can cause irreparable system damage if improperly used.
  B) The type of refrigerant that passes through them is exceptionally toxic.
  C) They are most easily broken during the process of tightening.
  D) Their opening leads to the release of a large amount of refrigerant.

Question 2

Why are positive shutoff devices used when removing gauge manifold sets from Schrader valves?
 
  A) To restart the system for installation B) To prevent postremoval refrigerant venting
  C) To reduce the release of refrigerants D) To automatically loosen Schrader valves

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Answer to Question 1

D

Answer to Question 2

C

[saliriagwu]

Excellent

[xthemafja]

Gracias!