Question

The most important reason for not operating a bus with the engine knocking is to prevent (14-166)

Answer 1

Not operating a bus with engine knocking is crucial to prevent serious engine damage, as engine knocking can reduce power output and damage engine components like valves and pistons.

Step-by-step explanation:

The most important reason for not operating a bus with an engine knocking is to prevent serious engine damage. Engine knocking occurs when the fuel in an internal combustion engine ignites prematurely, leading to uneven combustion. This abnormal combustion pattern can lead to various issues in the engine.

According to LibreTexts™, when an engine is running with a gasoline that has an octane rating too low for its design, it can result in premature ignition. Premature ignition can cause knocking or pinging, which can have several harmful effects: it reduces the power output of the engine and can damage vital components such as valves, pistons, bearings, and other parts of the engine. Therefore, operating a vehicle in this condition may result in costly repairs and potential safety hazards.