While discussing pulleys, Technician A says that some engines use a vibration damper to minimize vibrations in the crankshaft that could cause it to crack or break. Technician B says that some engines do not use a damper. Instead they have a single-piece pulley with threaded holes to attach the drive belt pulley(s). Who is correct?
A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question

Quizplus · Accepted Answer

Both technicians are partially correct. Some engines do use a vibration damper to minimize crankshaft vibrations, but others use a single-piece pulley with threaded holes for the drive belt pulley(s). It ultimately depends on the design and specifications of the engine.

While Discussing Pulleys, Technician a Says That Some Engines Use