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 Buoyancy of the bubbles produced at active nucleation site None of these Temperature gradient produced due to density difference Existence of thermal boundary layer Buoyancy of the bubbles produced at active nucleation site None of these Temperature gradient produced due to density difference ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer To reduce the tube side pressure drop for the same flow rate, the heat exchanger recomended is 1-2 heat exchanger 1-1 heat exchanger 2-4 heat exchanger 3-2 heat exchanger 1-2 heat exchanger 1-1 heat exchanger 2-4 heat exchanger 3-2 heat exchanger ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the lowest overall heat transfer co-efficient? Air Dowtherm Water Molten sodium Air Dowtherm Water Molten sodium ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer 'Fouling factor' used in the design of a multipass shell and tube heat exchanger is a Non-dimensional factor Factor of safety Conversion factor for individual film heat transfer co-efficient to overall heat transfer co-efficient None of these Non-dimensional factor Factor of safety Conversion factor for individual film heat transfer co-efficient to overall heat transfer co-efficient None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Convective heat transfer, in which heat is transferred by movement of warmed matter is described by Fourier's law Fick's law None of these Newton's law of cooling Fourier's law Fick's law None of these Newton's law of cooling ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer in the laminar sublayer in case of a liquid flowing through a pipe, is mostly by Convection None of these Eddies current Conduction Convection None of these Eddies current Conduction ANSWER DOWNLOAD EXAMIANS APP
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