Heat Transfer The overall resistance for heat transfer through a series of flat resistance, is the __________ of the resistances. Geometric mean Sum Product Average Geometric mean Sum Product Average ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer When does the heat generated by fluid friction becomes appreciable compared to the heat transferred between the fluids? When fluid flows past a smooth surface At low velocity At high fluid velocity None of these When fluid flows past a smooth surface At low velocity At high fluid velocity None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Maximum heat transfer rate is obtained in __________ flow. Creeping Laminar Turbulent Transition region Creeping Laminar Turbulent Transition region ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a multipass shell and tube heat exchanger, the LMTD correction factor is always < 1 1 > 1 Between 1 & 2 < 1 1 > 1 Between 1 & 2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Multiple effect evaporators are commonly used in the manufacture of P. Paper Q. Superphosphate R. Sugar S. Fats P and S P and R P and Q R and S P and S P and R P and Q R and S ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A 10 cm dia steam pipe, carrying steam at 180°C, is covered with an insulation (conductivity = 0.6 W/m.°C). It losses heat to the surroundings at 30°C. Assume a heat transfer co-efficient of 0.8 W/m².°C for heat transfer from surface to the surroundings. Neglect wall resistance of the pipe and film resistance of steam. If the insulation thickness is 2 cms, the rate of heat loss from this insulated pipe will be Greater than that for uninsulated steam pipe Equal to that of the uninsulated steam pipe Less than that of the uninsulated steam pipe Less than the steam pipe with 5 cms insulation Greater than that for uninsulated steam pipe Equal to that of the uninsulated steam pipe Less than that of the uninsulated steam pipe Less than the steam pipe with 5 cms insulation ANSWER DOWNLOAD EXAMIANS APP
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