MCQ PracticeThe brake system which is the most efficient among the given, isSubject: Automobile EngineeringTopic: Braking SystemAMechanical brake systemBHydraulic brake systemCVacuum servo brake systemDAir brake systemCorrect 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