Question

which of the following is not a source of unusual noises on forced induction engines?
o a. loose or damaged ducting
o b. clogged air filter
o c. leaking pressurizes hoses
o d. internal bearing failures

Explanation:

A clogged air - filter mainly affects air intake and engine performance like power and fuel efficiency, rather than producing unusual noises directly. Loose or damaged ducting can cause rattling or whistling, leaking pressurized hoses can make hissing sounds, and internal bearing failures can create grinding or knocking noises.

Answer:

B. Clogged air filter