EXAMIANS
Which of the following is the most widely used heat insulating material for pipelines carrying steam?
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Prandtl and Reynold's analogies are identical for Prandtl number value of
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To reduce the tube side pressure drop for the same flow rate, the heat exchanger recomended is
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The value of Stefan-Boltazman constant in SI unit is
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The driving potential for the crystal growth during crystallisation is the __________ of the solution.
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A composite flat wall of a furnace is made of two materials 'A' and 'B'. The thermal conductivity of 'A' is twice of that of material 'B', while the thickness of layer of 'A' is half that of B. If the temperature at the two sides of the wall are 400 and 1200°K, then the temperature drop (in °K) across the layer of material 'A' is
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Calburn analogy is applicable for the value of Prandtl number from
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For a given ambient air temperature with increase in the thickness of insulation of a hot cylinderical pipe, the rate of heat loss from the surface would
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Which of the following has the lowest Prandtl number?
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With increase in temperature, the thermal conductivity of non-metallic amorphous solids
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