MCQ PracticeThe function of the relay valve in a compressed air brake system is toSubject: Automobile EngineeringTopic: Automobile EngineALimit the maximum pressure reached in brake chambersBRelieve air pressure in brake chambers when it reaches a maximum valueCReduce the effort required at the brake pedalDSpeed up the supply of air to brake chambers located at a distance from brake valveCorrect Answer: APractice 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