Heat Transfer Heat transfer occurs by natural convection because change in temperature causes difference in Thermal conductivity Heat capacity Density Viscosity Thermal conductivity Heat capacity Density Viscosity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is generally considered as opaque surface towards radiations? Solids Liquids Gases Both solids & liquids Solids Liquids Gases Both solids & liquids ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in the distance between the heat source and the object receiving the heat, the radiation heat transfer Decreases Increases Increases exponentially Remains unaffected Decreases Increases Increases exponentially Remains unaffected ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of heat flow by conduction for a cylindrical body with an internal heat source, the nature of temperature distribution is Linear Parabolic Hyperbolic None of these Linear Parabolic Hyperbolic None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Conduction occurs in the buffer zone for a fluid flowing through a heated pipe, only when Prandtl number is < 1 L >1 0.1 < 1 L >1 0.1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The capacity of double-effect evaporator is less than half of the capacity of two single effects, each of which is operating over same terminal temperature difference, when the None of these Evaporators operate under vacuum Solution has an elevation of boiling point Evaporators opreate at atmospheric pressure None of these Evaporators operate under vacuum Solution has an elevation of boiling point Evaporators opreate at atmospheric pressure ANSWER DOWNLOAD EXAMIANS APP
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