Heat Transfer The absorptivity of a body is equal to its emissivity at a particular temperature for circular bodies under thermal equilibrium none of the listed here at a particular temperature for circular bodies under thermal equilibrium none of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The wavelength at which the maximum monochromatic emissive power occurs for a black body, is (where, T = absolute temperature of the black body) αT α 1/T Independent of T α T⁴ αT α 1/T Independent of T α T⁴ ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Prandtl and Reynold's analogies are identical for Prandtl number value of 1 0.5 5 1 0.5 5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is not used as a medium for high temperature heating ? None of the listed here dowtherm mercury liquid metal None of the listed here dowtherm mercury liquid metal ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Boiling point elevation of an ideal solution Increases rapidly with temperature rise Both B and C Decreases rapidly with temperature rise In independent of pressure Increases rapidly with temperature rise Both B and C Decreases rapidly with temperature rise In independent of pressure ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Thermal conductivities of most of the liquids __________ with rise in temperature. Decreases Increases Remains unchanged May increase or decrease; depends on the liquid Decreases Increases Remains unchanged May increase or decrease; depends on the liquid ANSWER DOWNLOAD EXAMIANS APP
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