Two technicians are testing maximum engine speed for a mechanical governor. Technician A says that you check the emission decal on the engine or the engine's service literature to find its high-idle speed or rated rpm. Technician B says that the engine should typically reach 10-20% above rated rpm speed with no-load acceleration. Who is right?
A)A only"
B)B only"
C)Both A and B
D)Neither A nor B"

Question

Quizplus · Accepted Answer

Technician A is correct because the emission decal or service literature provides the manufacturer's specified high-idle speed or rated rpm. Technician B is incorrect because engines should not exceed their rated rpm by 10-20% during no-load acceleration, as this could cause damage.

Two Technicians Are Testing Maximum Engine Speed for a Mechanical