Heat Transfer Bulk of the convective heat transfer resistance from a hot tube surface to the fluid flowing in it, is None of these Uniformly distributed throughout the fluid Mainly confined to a thin film of fluid near the surface In the central core of the fluid None of these Uniformly distributed throughout the fluid Mainly confined to a thin film of fluid near the surface In the central core of the fluid ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fluid motion in the natural convection heat transfer between a solid surface and a fluid in contact with it, results from the Existence of thermal boundary layer None of these Temperature gradient produced due to density difference Buoyancy of the bubbles produced at active nucleation site Existence of thermal boundary layer None of these Temperature gradient produced due to density difference Buoyancy of the bubbles produced at active nucleation site ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Value of Prandtl number for water ranges from L to 2 100 to 500 1000 to 2000 5 to 10 L to 2 100 to 500 1000 to 2000 5 to 10 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Controlling heat transfer film co-efficient is the one, which offers __________ resistance to heat transfer. the least lower no the largest the least lower no the largest 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 L < 1 0.1 >1 L < 1 0.1 >1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Finned tube heat exchangers facilitate very large temperature drop through tube wall use metal fins of low thermal conductivity give larger area per tube are used for smaller heat load facilitate very large temperature drop through tube wall use metal fins of low thermal conductivity give larger area per tube are used for smaller heat load ANSWER DOWNLOAD EXAMIANS APP
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