Heat Transfer Choose the most important factor on which the heat conducted through a wall in a unit time will depend on? Material of the wall Temperature difference between the two surfaces of the wall Area of the wall perpendicular to heat flow Thickness of the wall Material of the wall Temperature difference between the two surfaces of the wall Area of the wall perpendicular to heat flow Thickness of the wall ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a liquid-liquid heat exchanger, for the same process temperature, the ratio of the LMTD in parallel flow to the LMTD in counter flow is always 1 < 1 > 1 ∞ 1 < 1 > 1 ∞ ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The absorptivity of a grey body at a given temperature __________ with increasing wavelength of radiation. Increases Remains constant Decreases May increase or decrease ; depends on the material Increases Remains constant Decreases May increase or decrease ; depends on the material ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer (NRe.NPr)(D/L) is called the __________ number Peclet None of these Graetz Stanton Peclet None of these Graetz Stanton ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A metal wire of 0.01 m dia and thermal conductivity 200 W/m.K is exposed to a fluid stream with a convective heat transfer coefficient of 100 W/m².K. The Biot number is 3.5 5.6 0.0035 0.025 3.5 5.6 0.0035 0.025 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Mechanical recompression evaporation is used in the production of Salt Distilled water Fruits jam Alcohol Salt Distilled water Fruits jam Alcohol ANSWER DOWNLOAD EXAMIANS APP