Heat Transfer While the total emissivity of a perfect black body is unity, the same for a real body is between 0 and 1 >1 0 1 between 0 and 1 >1 0 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Walls of a cubical oven are of thickness l, and they are made of material of thermal conductivity k. The temperature inside the oven is 100°C and the inside heat transfer co-efficient is 3k/l. If the wall temperature on the outside is held at 25°C, what is the inside wall temperature in degree centigrade? 35.5 81.25 48.25 43.75 35.5 81.25 48.25 43.75 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Choose the most important factor on which the heat conducted through a wall in a unit time will depend on? Temperature difference between the two surfaces of the wall Thickness of the wall Material of the wall Area of the wall perpendicular to heat flow Temperature difference between the two surfaces of the wall Thickness of the wall Material of the wall Area of the wall perpendicular to heat flow ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is concerned with both heat and mass transfer ? Froude number Nusselt number Lewis relationship Kutateladze number Froude number Nusselt number Lewis relationship Kutateladze number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat flux through several resistances in series in analogous to the current flowing through several. resistances in series none of the listed here resistances in parallel capacitors in series resistances in series none of the listed here resistances in parallel capacitors in series ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For small temperature difference, the heat transfer rate as per Newton's law of cooling is proportional to (where, Δt = excess temperature) √Δt Δt Δt³ Δt² √Δt Δt Δt³ Δt² ANSWER DOWNLOAD EXAMIANS APP
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