Heat Transfer __________ paint has the minimum absorption co-efficient. Grey Black White lead Light cream Grey Black White lead Light cream ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In counter flow compared to parallel flow, More surface area is required for a given heat transfer rate Both A and B LMTD is greater Less surface area is required for a given heat transfer rate More surface area is required for a given heat transfer rate Both A and B LMTD is greater Less surface area is required for a given heat transfer rate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A 10 cm dia steam pipe, carrying steam at 180°C, is covered with an insulation (conductivity = 0.6 W/m.°C). It losses heat to the surroundings at 30°C. Assume a heat transfer co-efficient of 0.8 W/m².°C for heat transfer from surface to the surroundings. Neglect wall resistance of the pipe and film resistance of steam. If the insulation thickness is 2 cms, the rate of heat loss from this insulated pipe will be Greater than that for uninsulated steam pipe Less than the steam pipe with 5 cms insulation Less than that of the uninsulated steam pipe Equal to that of the uninsulated steam pipe Greater than that for uninsulated steam pipe Less than the steam pipe with 5 cms insulation Less than that of the uninsulated steam pipe Equal to that of the uninsulated steam pipe ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Multipass heat exchangers are used To reduce the pressure drop For low heat load Because of simplicity of fabrication To obtain higher heat transfer co-efficient and shorter tube To reduce the pressure drop For low heat load Because of simplicity of fabrication To obtain higher heat transfer co-efficient and shorter tube ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Steam trap is used to Condense the steam flowing in the pipeline Stop the supply of steam Remove water resulting from partial condensation of steam None of these Condense the steam flowing in the pipeline Stop the supply of steam Remove water resulting from partial condensation of steam None of these 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 Mainly confined to a thin film of fluid near the surface None of these In the central core of the fluid Uniformly distributed throughout the fluid Mainly confined to a thin film of fluid near the surface None of these In the central core of the fluid Uniformly distributed throughout the fluid ANSWER DOWNLOAD EXAMIANS APP
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