Question 124Motor Plants - Assistant Engineer

The correct answer is B) removes combustible gases. The crankcase ventilation system in a diesel engine is designed to remove any combustible gases that may accumulate in the crankcase. This is an important safety feature as the buildup of these gases could potentially lead to an explosion or fire. By venting the crankcase and removing the combustible gases, the ventilation system helps prevent such hazardous situations. The other answer choices are incorrect because: A) preventing spark generation is not the primary function of the crankcase ventilation system, C) the ventilation system does not determine the level of combustible gases but rather removes them, and D) the ventilation system does not provide inert gas generation in the crankcase.