Q441
Open questionIntermittant tube cleaning is possible to be done in case of a __________ evaporator.
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Heat Transfer
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Q442
Open questionSteam is routed through the tube in case of a __________ evaporator.
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Q443
Open questionIn a shell and tube heat exchanger,
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Q444
Open questionWhich of the following parameters of the fluid is not very important, while deciding its route in a shell and tube heat exchanger?
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Q445
Open questionPick out the wrong statement.
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Q446
Open questionOpen pan evaporators are preferred to be used, when the solution to be concentrated is
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Q447
Open questionIn thermal radiation for a black body (where, ε is emissivity and α is absorptivity)
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Q448
Open questionOut of 100 kcal/second of incident radiant energy on the surface of a thermally transparent body, 300 kcal/second is reflected back. If the transmissivity of the body is 0.25, the emissivity of the surface will be
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Q449
Open questionFor shell and tube heat exchanger, with increasing heat transfer area, the purchased cost per unit heat transfer area
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Q450
Open questionSteam trap is used to
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Q451
Open questionFor flow over a flat plate, the ratio of thermal boundary layer thickness, 'xt' and hydrodynamic boundary layer thickness 'x' is equal to (where, NPr = Prandtl number)
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Q452
Open questionThe critical radius 'r' of insulation on a pipe is given by
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Q453
Open questionHeat transfer efficiency leading of energy conservation in a heat exchanger can be achieved by
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Q454
Open questionWhich of the following is the most controlling factor for the rate of bubble detachment from the hot solid surface?
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Q455
Open questionLeidenfrost point is a term concerned with the
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Q456
Open questionThe unit of conductance in SI unit is
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Q457
Open questionWith increase in the distance between the heat source and the object receiving the heat, the radiation heat transfer
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Q458
Open questionFluid 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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Q459
Open questionFor a multipass shell and tube heat exchanger, the LMTD correction factor is always
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Q460
Open questionThe energy radiated from a surface Q at absolute temperature T is related as
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