Heat Transfer The critical radius of insulation for cylindrical pipe is (where, hi = heat transfer coefficient at inside of the pipe ) hi/K 2hi/K 2K/h0 K/h0 hi/K 2hi/K 2K/h0 K/h0 ANSWER DOWNLOAD EXAMIANS APP
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 Unsteady state heat conduction occurs, when Temperature distribution is dependent on time Heat flows in one direction only Three dimensional heat flow is concerned Temperature distribution is independent of time Temperature distribution is dependent on time Heat flows in one direction only Three dimensional heat flow is concerned Temperature distribution is independent of time ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which has the lowest Prandtl number? Aqueous solution Liquid metal Lube oil Water Aqueous solution Liquid metal Lube oil Water ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in temperature, the thermal conductivity of a gas May increase or decrease depending on the type of gas Remains same Decreases Increases May increase or decrease depending on the type of gas Remains same Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the highest thermal conductivity ? Air Black Silver Water Air Black Silver Water ANSWER DOWNLOAD EXAMIANS APP
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