Heat Transfer To reduce the tube side pressure drop for the same flow rate, the heat exchanger recomended is 3-2 heat exchanger 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 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The critical radius of insulation for cylindrical pipe is (where, hi = heat transfer coefficient at inside of the pipe ) 2K/h0 2hi/K K/h0 hi/K 2K/h0 2hi/K K/h0 hi/K ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a heat exchanger with steam outside the tubes, a liquid gets heated to 45°C, when its flow velocity in the tubes is 2 m/s. If the flow velocity is reduced to 1 m/s, other things remaining the same, the temperature of the exit liquid will be More than 45°C Initially decreases and remains constant thereafter Equal to 45°C Less than 45°C More than 45°C Initially decreases and remains constant thereafter Equal to 45°C Less than 45°C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The local surface conductance for laminar film condensation on vertical surface is (where, t = film thickness) Independent of 't' ∝ 1/t ∝ √t ∝ t Independent of 't' ∝ 1/t ∝ √t ∝ t ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Among liquids, water has a comparatively high value of thermal conductivity, due to its Low density Dense structure High viscosity Partial ionisation Low density Dense structure High viscosity Partial ionisation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Thermal conductivities of most of the liquids __________ with rise in temperature. Remains unchanged Increases May increase or decrease; depends on the liquid Decreases Remains unchanged Increases May increase or decrease; depends on the liquid Decreases ANSWER DOWNLOAD EXAMIANS APP
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