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Heat Transfer MCQs | Page - 38
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. 371) Fluid motion in the natural convection heat transfer between a solid surface and a fluid in contact with it, results from the
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Q. 372) Nusselt number is the ratio of the
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Q. 373) Critical value of the __________ number governs the transition from laminar to turbulent flow in free convection heat transfer.
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Q. 374) Prandtl number is the reciprocal of
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Q. 375) In case of parallel flow heat exchanger, the lowest temperature theoretically attainable by the hot fluid is __________ the outlet temperature of the cold fluid.
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Q. 376) For a multipass shell and tube heat exchanger, the LMTD correction factor is always
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Q. 378) Thermal conductivity of a gas at low density, __________ with increase in temperature.
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Q. 379) Which of the following is the most widely used heat insulating material for pipelines carrying steam?
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Q. 380) The interchange factor for radiation heat transfer from surface 'x' to surface 'y' in case of an infinite parallel planes with emissivities εx & εy is given by
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