Heat Transfer If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface tempeature follows __________ law. Parabolic Linear Hyperbolic Logarithmic Parabolic Linear Hyperbolic Logarithmic ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Bulk of the convective heat transfer resistance from a hot tube surface to the fluid flowing in it, is Mainly confined to a thin film of fluid near the surface Uniformly distributed throughout the fluid In the central core of the fluid None of these Mainly confined to a thin film of fluid near the surface Uniformly distributed throughout the fluid In the central core of the fluid None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Thermal conductivities of most of the liquids __________ with rise in temperature. Remains unchanged May increase or decrease; depends on the liquid Increases Decreases Remains unchanged May increase or decrease; depends on the liquid Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer An insulator should have Less resistance to heat flow High thermal conductivity Low thermal conductivity A porous structure Less resistance to heat flow High thermal conductivity Low thermal conductivity A porous structure ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A black body does not __________ radiation. Both B & C Reflect Refract Absorb or emit Both B & C Reflect Refract Absorb or emit ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Maximum heat transfer rate is obtained in __________ flow. Transition region Laminar Turbulent Creeping Transition region Laminar Turbulent Creeping ANSWER DOWNLOAD EXAMIANS APP
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