Intake manifold gaskets on a V-type engine can fail due to what ...

[s.tung]

Intake manifold gaskets on a V-type engine can fail due to what factor?
 
  A) Relative movement between the intake manifold and the cylinder head
  B) Fretting
  C) Coolant damage
  D) All of the above

Question 2

Coolant drained from the cooling system when replacing a thermostat or water pump should be ________.
 
  A) Poured down a toilet B) Filtered and reinstalled after the repair
  C) Disposed of properly or recycled D) Reused

[gabrielle_lawrence]

Answer to Question 1

D

Answer to Question 2

C