MCQ PracticeTunnel kilns are usually used forSubject: Chemical EngineeringTopic: Furnace TechnologyARoasting of pyritesBDrying/tempering of refractoriesCReheating of slabsDMelting of glassCorrect 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