Motorcycle Permit Practice Test

Being low on oil can cause the engine to lock because oil is essential for lubricating the moving parts of the engine. Without proper lubrication, the metal parts within the engine can rub against each other and create excessive heat and friction, leading to the engine seizing up or locking. It is crucial to regularly check and maintain the oil level in your motorcycle to prevent engine damage. Options B, C, and D are incorrect because while overheating, using improper fuel, and an oil leak can cause issues with the engine, they do not directly result in the engine locking up like being low on oil does.