Heat Transfer Radiation heat transfer rates does not depend upon the distance between the heat source and the object receiving the heat surface area and temperature of the heat source none of the listed here type of absorbing surface distance between the heat source and the object receiving the heat surface area and temperature of the heat source none of the listed here type of absorbing surface ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A diathermaneous substance __________ the thermal radiation completely. Absorbs Transmits Reflects None of these Absorbs Transmits Reflects None of these ANSWER DOWNLOAD EXAMIANS APP
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. Linear Hyperbolic Parabolic Logarithmic Linear Hyperbolic Parabolic Logarithmic ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Reynold's analogy states that (where, St = Stanton number f = friction factor) St = f/4 St = f/2 St = 4f St = f1/2 St = f/4 St = f/2 St = 4f St = f1/2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer An insulator should have Low thermal conductivity A porous structure Less resistance to heat flow High thermal conductivity Low thermal conductivity A porous structure Less resistance to heat flow High thermal conductivity 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