MCQ PracticeWhat is positive crank case ventilation?Subject: Automobile EngineeringTopic: Air Pollution And Its Control In AutomobileAUse of back pressure to increase efficiencyBHC present in blow by drawn outCHC present in the blow by reusedDIncrease the crank case dilutionCorrect Answer: CPractice QuizBack to MCQsRelated MCQsCurrent flows in a circuit whenEighttenths coulomb passes a point in 4 s. The current in amperes isThe unit of electrical charge is the