Heat Transfer In Biot number, the characteristic length used is the ratio of the __________ of the solid. Surface area to perimeter Perimeter to surface area Surface area to volume Volume to surface area Surface area to perimeter Perimeter to surface area Surface area to volume Volume to surface area ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The non-dimensional temperature gradient in a liquid at the wall of a pipe is the Heat flux Schmidt number Nusselt number Prandtl number Heat flux Schmidt number Nusselt number Prandtl number 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 Δt³ √Δt Δt² Δt Δt³ √Δt Δt² 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? 81.25 48.25 43.75 35.5 81.25 48.25 43.75 35.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In which mode of heat transfer, the Biot number is important? Natural convection Transient heat conduction Radiation Forced convection Natural convection Transient heat conduction Radiation Forced convection ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Multiple effect evaporators are commonly used in the manufacture of P. Paper Q. Superphosphate R. Sugar S. Fats P and S R and S P and R P and Q P and S R and S P and R P and Q ANSWER DOWNLOAD EXAMIANS APP
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