Question 49Motor Plants - QMED

The correct answer is C) The intake system's function is to ensure an adequate supply of clean air to support engine combustion and scavenging. The intake system on a diesel engine is responsible for drawing in and delivering clean air to the engine cylinders. This air is necessary for the combustion process, where the air mixes with the injected diesel fuel to produce the power that drives the engine. The intake system also helps with the scavenging process, which removes the exhaust gases from the cylinders after combustion has occurred. The other answer choices are incorrect because they do not accurately describe the primary function of the intake system. The intake system is not responsible for lubricating the engine (option A), cooling the engine (option B), or ventilating the crankcase (option D).