MCQ PracticeMain constituents of portland cement are calcium aluminate andSubject: Chemical EngineeringTopic: Chemical ProcessAGypsumBSilicatesCSodium silicateDCarbonatesCorrect Answer: BPractice 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