Heat Transfer A body cools down from 75°C to 70°C in 10 minutes. It will cool down from 70° C to 65° C in __________ minutes. 10 Either B or C, depends on the mass of the body >10 10 Either B or C, depends on the mass of the body >10 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Thermal conductivity of a gas at low density, __________ with increase in temperature. Decreases May increase or decrease; depends on the gas Remains unchanged Increases Decreases May increase or decrease; depends on the gas Remains unchanged Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat exchangers operating, when the asymptotic range is reached, Results in making part of the heating surface inactive None of these Results in abruptly increased velocity Provide very large heat transfer co-efficient Results in making part of the heating surface inactive None of these Results in abruptly increased velocity Provide very large heat transfer co-efficient ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Value of Prandtl number for water ranges from 1000 to 2000 5 to 10 L to 2 100 to 500 1000 to 2000 5 to 10 L to 2 100 to 500 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a liquid in laminar flow through a very long tube, when the exit fluid temperature approaches the wall temperature, the equation to be used is Nu = 2Gz0.5 Nu = Gz Nu = Gz Nu = 0.023 Re0.8 . Pr0.4 Nu = 2Gz0.5 Nu = Gz Nu = Gz Nu = 0.023 Re0.8 . Pr0.4 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer __________ paint has the minimum absorption co-efficient. White lead Black Grey Light cream White lead Black Grey Light cream ANSWER DOWNLOAD EXAMIANS APP
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