Heat Transfer Bulk of the convective heat transfer resistance from a hot tube surface to the fluid flowing in it, is Uniformly distributed throughout the fluid In the central core of the fluid None of these Mainly confined to a thin film of fluid near the surface Uniformly distributed throughout the fluid In the central core of the fluid None of these Mainly confined to a thin film of fluid near the surface ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Vent pipes are provided in a condenser to Purge the condenser Remove non-condensable gases Facilitate easy cleaning of tubes None of these Purge the condenser Remove non-condensable gases Facilitate easy cleaning of tubes None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Overall thermal resistance for conductive heat transfer through a series of flat resistances is equal to the Average of all resistances Minimum resistance presents in the series Sum of all resistances Maximum resistance in the series Average of all resistances Minimum resistance presents in the series Sum of all resistances Maximum resistance in the series ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A hot body will radiate heat most rapidly, if its surface is White & polished Black & polished Black & rough White & rough White & polished Black & polished Black & rough White & rough ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In regenerative air preheater (as practised in heating of coke ovens), the heat is transferred By heating an intermediate material (like chequor bricks) and then heating the air from this hot material By direct contact of hot flue gas with air None of these Through a metallic wall By heating an intermediate material (like chequor bricks) and then heating the air from this hot material By direct contact of hot flue gas with air None of these Through a metallic wall ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The critical radius 'r' of insulation on a pipe is given by r = 2k/h r = k/h r = h/k r = k/2h r = 2k/h r = k/h r = h/k r = k/2h ANSWER DOWNLOAD EXAMIANS APP
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