Heat Transfer With increase in temperature, the thermal conductivity of non-metallic amorphous solids remains same increases decreases None of the listed here remains same increases decreases None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In Biot number, the characteristic length used is the ratio of the __________ of the solid. Surface area to perimeter Surface area to volume Perimeter to surface area Volume to surface area Surface area to perimeter Surface area to volume Perimeter to surface area Volume to surface area ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Among liquids, water has a comparatively high value of thermal conductivity, due to its Partial ionisation Low density High viscosity Dense structure Partial ionisation Low density High viscosity Dense structure ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Unsteady state heat conduction occurs, when Temperature distribution is independent of time Temperature distribution is dependent on time Heat flows in one direction only Three dimensional heat flow is concerned Temperature distribution is independent of time Temperature distribution is dependent on time Heat flows in one direction only Three dimensional heat flow is concerned ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A body cools down from 75°C to 70°C in 10 minutes. It will cool down from 70° C to 65° C in __________ minutes. >10 Either B or C, depends on the mass of the body 10 >10 Either B or C, depends on the mass of the body 10 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following parameters is increased by use of finned tube in a multipass shell and tube heat exchanger? Convective heat transfer co-efficient Tube side pressure drop and the heat transfer rate All of these Effective tube surface area for convective heat transfer Convective heat transfer co-efficient Tube side pressure drop and the heat transfer rate All of these Effective tube surface area for convective heat transfer ANSWER DOWNLOAD EXAMIANS APP
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