Question

Technician A says that when using an impact wrench to remove a bolt from the front of an engine's crankshaft, the crankshaft must be held to keep it from turning. Technician B says that when using an impact wrench to remove lug nuts on a raised vehicle, the brakes must be applied. Who is right?
a. Technician A
b. Technician B
c. Both A and B
d. Neither A nor B

Answer 1

Answer:

d. Neither A nor B

Explanation:

Mostly for exhaust bolts we use impact wrenches. Impact wrenches are very useful on flywheels because the crank shaft needs to be fixed from rotating. Also impact wrenches are useful on cars for loosening wheel nuts.  The wheels need not to be restrained or the brakes need not to be applied to fiz wheels in position.