Question

which of the following is a common cause for a cracked mounting flange?
loose mounting brackets
faulty ignition timing
impact loading
too much torque to mounting bolts

Explanation:

Impact loading can cause sudden and high - stress forces on the mounting flange, leading to cracking. Loose mounting brackets may cause vibrations but not typically direct cracking like impact loading. Faulty ignition timing affects engine performance rather than directly cracking the mounting flange. Excessive torque on mounting bolts can cause bolt - related issues but impact loading is more directly associated with cracking the flange itself.

Answer:

Impact loading