Heat Transfer Nusselt number is the ratio of the temperature gradient at the wall to Temperature difference None of these Heat flux That across the entire pipe Temperature difference None of these Heat flux That across the entire pipe ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of a supercooled solution, which is on the verge of crystallisation, the free energy of the solution as compared to that of the solid is Same More Less More or less; depends on the nature of solution Same More Less More or less; depends on the nature of solution ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer An insulator should have High thermal conductivity Less resistance to heat flow Low thermal conductivity A porous structure High thermal conductivity Less resistance to heat flow Low thermal conductivity A porous structure ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a multipass shell and tube heat exchanger, the LMTD correction factor is always > 1 < 1 Between 1 & 2 1 > 1 < 1 Between 1 & 2 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which one gives the monochromatic emissive power for black body radiation ? Kirchhoffs law Wien's law Stefan-Boltzman law Planck's law Kirchhoffs law Wien's law Stefan-Boltzman law Planck's law ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Air is to be heated by condensing steam. Two heat exchangers are available (i) a shell and tube heat exchanger and (ii) a finned tube heat exchanger. Tube side heat transfer area are equal in both the cases. The recommended arrangement is Finned tube heat exchanger with air outside and steam inside Shell and tube heat exchanger with air on shell side and steam inside tubes Finned tube heat exchanger with air inside and steam outside Shell and tube heat exchanger with air inside tubes and steam on shell side Finned tube heat exchanger with air outside and steam inside Shell and tube heat exchanger with air on shell side and steam inside tubes Finned tube heat exchanger with air inside and steam outside Shell and tube heat exchanger with air inside tubes and steam on shell side ANSWER DOWNLOAD EXAMIANS APP
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