Never remove more material from the tip of a valve than ________ ...

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Never remove more material from the tip of a valve than ________ inches.
 
  A) 0.020 B) 0.050 C) 0.002 D) 0.001

Question 2

If an interference angle is machined on a valve or seat, the angle is usually ________.
 
  A) 0.005 degree B) 0.5-0.75 degree C) 1-3 degree D) 1 degree

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Answer to Question 1

A

Answer to Question 2

D