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Heat Transfer MCQs | Page - 8
Dear candidates you will find MCQ questions of Heat Transfer here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
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Q. For a laminar flow of fluid in a circular tube, 'h1' is the convective heat transfer co-efficient at velocity 'V1'. If the velocity is reduced by half and assuming the fluid properties are constant, the new convective heat transfer co-efficient is
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Q. If h₁ = inner film co-efficient and /h₂ = outer film co-efficient, then the overall heat transfer co-efficient is
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Q. Pick out the wrong statement.
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Q. Economy of a multiple effect evaporator is not influenced much by the
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Q. Heat transfer co-efficient equation for forced convection, Nu = 0.023 Re0.8 . Prn, is not valid, if the value of
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Q. LMTD for evaporators & condensers for a given terminal parameters & set of conditions for counterflow is equal to that for parallel flow. In such heat exchangers, with one of the fluids condensing or evaporating, the surface area required is the least in the __________ flow.
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Q. In evaporators, lowering the feed temperature
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Q. The unit of heat transfer co-efficient is
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Q. If average heat transfer co-efficient is
ha
and the local coefficient at the end of the plate is
hl
then in case of heat transfer to a fluid flowing over a flat plate, heated over its entire length
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