Heat And Mass Transfer MCQ
Test your knowledge with important Heat And Mass Transfer MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Heat And Mass Transfer MCQs on Bissoy. Bissoy App
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The energy distribution of an ideal reflector at higher temperatures is largely in the range of
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In counter flow heat exchangers
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In counter current flow heat exchanger, the logarithmic temperature difference between the fluids is ________ as compared to parallel flow heat exchanger.
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Upto the critical radius of insulation,
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The product of Reynolds number and Prandtl number is known as
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The ratio of Nusselt number and the product of Reynold's number and Prandtl number is equal to
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A steam pipe is to be lined with two layers of insulating materials of different thermal conductivities. For the minimum heat transfer,
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In a heat exchanger with one fluid evaporating or condensing, the surface area required is least in
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Absorptivity of a body will be equal to its emissivity
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According to Newton's law of cooling, the heat transfer from a hot body to a cold body is
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Fourier's law of heat conduction is valid for
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The process of heat transfer from one particle of the body to another by the actual motion of the heated particles, is called
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The process of heat transfer from one particle of the fluid to another by the actual movement of the fluid particles due to difference of density caused by temperature of the particle is known as
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In a shell and tube heat exchanger, baffles are provided on the shell side to
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Fourier's law of heat conduction gives the heat flow for
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Radiation is the process of heat transfer in which heat flows from a ________, in a straight line, without affecting the intervening medium.
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Which of the following is a case of steady state heat transfer?
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The ratio of surface convection resistance to the internal conduction resistance is known as
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Moisture would find its way into insulation by vapour pressure unless it is prevented by
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An ordinary passenger aircraft requires a cooling system of capacity.
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The thermal diffusivities for gases are generally
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Heat is closely related with
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Thermal conductivity of water in general with rise in temperature
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Thermal conductivity of air with rise in temperature
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Thermal conductivity of non-metallic amorphous solids with decrease in temperature
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The critical temperature is the temperature
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According to Stefan's law, the total radiation from a black body per second per unit area is proportional to
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Thermal conductivity of air at room temperature in kcal/m hr °C is of the order of
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Metals are good conductors of heat because
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Kirchhoff's law states that