Heat Transfer For a perfectly transparent surface (like gases), the Transmissivity = 1 Absorptivity = 0 Reflectivity = 0 All of these Transmissivity = 1 Absorptivity = 0 Reflectivity = 0 All of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer If the baffle spacing in a shell and tube heat exchanger increases, then the Reynolds number of the shell side fluid Decreases Increases or decreases depending on number of shell passes Remains unchanged Increases Decreases Increases or decreases depending on number of shell passes Remains unchanged Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A cube, sphere & a thin circular plate (all having same mass and made of same material) are all heated to 300°C and allowed to cool in natural air. Which one will cool the slowest ? Plate Cube All of these Sphere Plate Cube All of these Sphere 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 Area of the wall perpendicular to heat flow Material of the wall Thickness of the wall Temperature difference between the two surfaces of the wall Area of the wall perpendicular to heat flow Material of the wall Thickness of the wall ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which is the most suitable for cold viscous feed? Parallel feed Forward feed Backward feed Mixed feed Parallel feed Forward feed Backward feed Mixed feed ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A measure of the extent to which viscous heating is important relative to the heat flow resulting from the impressed temperature difference is represented by the __________ number. Brinkman Grashoff Condensation Stantan Brinkman Grashoff Condensation Stantan ANSWER DOWNLOAD EXAMIANS APP
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