Technician A says that harsh noises and vibrations from the road and vibrations that may come from various rotating mechanical parts is referred to as NIV. Technician B says that oil or other fluids that leak into the cylinders from a rollover crash may cause "hydraulic lockup" of the engine. Who is correct?
A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

Technician A is correct in defining NIV as harsh noises and vibrations from the road and other rotating mechanical parts. However, Technician B is incorrect as hydraulic lockup is caused when fluid accumulates in the combustion chamber, typically due to a leaking fuel injector or a failed head gasket, not from oil or other fluids leaking into the cylinders from a rollover crash.

Technician a Says That Harsh Noises and Vibrations from the Road