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 MCQsThe secondary winding of which of the following transformers is always kept closMinimum voltage regulation occurs when the power factor of the load isThe term ‘cogging’ is associated with