Q421
Open questionPick out the wrong statement.
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Chemical Engineering · all questionsHeat Transfer
Heat Transfer
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Q422
Open questionThermal diffusivity of a material
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Q423
Open question is termed as the __________ number.
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Q424
Open questionExtended heat transfer surface like fins are used to increase the heat transfer rate. Fin efficiency is defined as the ratio of heat transferred across the fin surface to the theoretical heat transfer across an equal area held at the
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Q425
Open questionDouble pipe heat exchangers are preferably useful, when
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Q426
Open questionThe thermal boundary layer at NPr > 1
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Q427
Open questionMaximum heat transfer rate is achieved in __________ flow.
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Q428
Open question(NRe.NPr)(D/L) is called the __________ number
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Q429
Open questionIn a boiling curve, the peak heat flux is called the __________ point.
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Q430
Open questionSensible heat of hot industrial flue gases can not be recovered by a/an
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Q431
Open questionLMTD correction factor which is to be applied for a cross-flow heat exchanger increases with increase in the number of shell passes. Its value for a single pass cross flow heat exchanger is
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Q432
Open questionMaximum heat transfer rate is obtained in __________ flow.
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Q433
Open question1000 kg of wet solids are to be dried from 60% to 20% moisture (by weight). The mass of moisture removed in kg is
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Q434
Open questionFor the same heat load and mass flow rate in the tube side of a shell and tube heat exchanger, one may use multipass on the tube side, because it
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Q435
Open questionA 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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Q436
Open questionPlanck's distribution law is valid for __________ bodies.
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Q437
Open questionCorrosiveness of steam condensate is due to the presence of
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Q438
Open questionAn equipment which converts the latent or sensible heat of one fluid into the latent heat of vaporisation of another, is called a
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Q439
Open questionSmall scale evaporation is done in a
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Q440
Open questionThe thickness of condensate layer in filmwise condensation depends on the
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