A rattling noise is heard when the engine is running and the air conditioning is off.Technician A says this may be caused by a too narrow gap between the compressor's armature and rotor.Technician B says a quick accurate test is to switch on the air conditioning to see if the noise stops.Who is correct? A) Technician A only B) Technician B only C) Both A and B D) Neither A nor B

Question

Quizplus · Accepted Answer

The rattling noise when the air conditioning is off is likely not related to the air conditioning itself, so Technician B's suggestion to turn it on to see if the noise stops is not a quick and accurate test. However, Technician A's suggestion that the noise may be caused by a too narrow gap between the compressor's armature and rotor is plausible, as this could cause a rattling noise in the compressor.

A Rattling Noise Is Heard When the Engine Is Running