Question

technician a says that if the engine is running rough, listen to the starter when cranking the engine over. technician b says that the starter will make an even cranking sound if a compression fault is present. who is correct?
select one:
a. technician a
b. technician b
c. both a and b
d. neither a nor b

Explanation:

When an engine has a compression fault, the cranking sound of the starter will be uneven. So Technician B is wrong. Listening to the starter when cranking the engine over is not a relevant way to diagnose an engine running rough (engine running rough is more related to issues like fuel - air mixture, ignition, etc. rather than listening to the starter during cranking). So Technician A is also wrong.

Answer:

d. Neither A nor B