Umbrella-type valve stem seals ________. A) Fit tightly onto ...

[AEWBW]

Umbrella-type valve stem seals ________.
 
  A) Fit tightly onto the valve guide
  B) Fit tightly onto the valve stem
  C) Fit on the valve face to prevent combustion leaks
  D) Lock under the valve retainer

Question 2

Dampers (damper springs) are used inside some valve springs to ________.
 
  A) Decrease valve spring pressure B) Retain valve stem seals
  C) Prevent valve spring surge D) Keep the valve spring attached to the valve

[yasmina]

Answer to Question 1

B

Answer to Question 2

C

[AEWBW]

Thanks for the timely response, appreciate it

[diana chang]

Excellent