Heat Transfer Thermal conductivities of most of the liquids __________ with rise in temperature. Increases Decreases May increase or decrease; depends on the liquid Remains unchanged Increases Decreases May increase or decrease; depends on the liquid Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Fourier number (defined as a.t/L²) is used in the analysis of problem involving heat transfer by Natural convection Steady state conduction Transient conduction Forced convection Natural convection Steady state conduction Transient conduction Forced convection ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Rate of heat transfer by vaporisation from pools of water is affected by the All of these Nature of heating surface and distribution of bubbles Surface tension of water Viscosity of water All of these Nature of heating surface and distribution of bubbles Surface tension of water Viscosity of water ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer When warm and cold liquids are mixed, the heat transfer is mainly by radiation convection conduction none of the listed here radiation convection conduction none of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Multiple effect evaporation accounts for Lower operating costs None of these Steam economy Investment economy Lower operating costs None of these Steam economy Investment economy ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For what value of Prandtl number, the Col-burn analogy is valid ? 1 to 103 0.06 to 120 0.6 to 120 l to 50 1 to 103 0.06 to 120 0.6 to 120 l to 50 ANSWER DOWNLOAD EXAMIANS APP
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