Heat Transfer Which of the following is the most widely used heat insulating material for pipelines carrying steam? Tar dolomite bricks followed by asbestos Fireclay refractory followed by aluminium sheet 85% magnesia cement and glass wool Cotton followed by aluminium foil Tar dolomite bricks followed by asbestos Fireclay refractory followed by aluminium sheet 85% magnesia cement and glass wool Cotton followed by aluminium foil ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A backward feed multiple effect evaporator is better than forward feed for concentrating cold feed, because it provides Both A & B Lower capacity Higher economy Lower economy Both A & B Lower capacity Higher economy Lower economy ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Overall thermal resistance for conductive heat transfer through a series of flat resistances is equal to the Maximum resistance in the series Minimum resistance presents in the series Average of all resistances Sum of all resistances Maximum resistance in the series Minimum resistance presents in the series Average of all resistances Sum of all resistances ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, floating head is used for Less corrosion of tubes Large temperature differentials Low pressure drop High heat transfer co-efficient Less corrosion of tubes Large temperature differentials Low pressure drop High heat transfer co-efficient ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer co-efficient (h1) for liquids increases with Decreasing temperature Increasing temperature Decreasing Reynolds number None of these Decreasing temperature Increasing temperature Decreasing Reynolds number None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer As the difference between the wall temperature and bulk temperature increases, the boiling heat transfer co-efficient goes through a maximum. goes through a minimum continues to increase continues to decrease goes through a maximum. goes through a minimum continues to increase continues to decrease ANSWER DOWNLOAD EXAMIANS APP
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