Heat Transfer Rate of heat transfer by vaporisation from pools of water is affected by the Viscosity of water All of these Surface tension of water Nature of heating surface and distribution of bubbles Viscosity of water All of these Surface tension of water Nature of heating surface and distribution of bubbles ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Nusselt number is the ratio of the Temperature gradient of the wall to that across the entire pipe None of these Heat flux at the wall to that across the entire pipe Temperature difference to the temperature gradient at the wall Temperature gradient of the wall to that across the entire pipe None of these Heat flux at the wall to that across the entire pipe Temperature difference to the temperature gradient at the wall ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The film co-efficient is decreased due to the presence of non-condensing gases in the vapors. The film co-efficient of superheated vapor as compared to that of saturated vapor is More Less Some Either more or less ; depends on the nature of vapor More Less Some Either more or less ; depends on the nature of vapor ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Steam traps are provided in steam carrying pipelines to remove condensate and inert gases none of the listed here release excess steam pressure by bleeding steam. condense steam remove condensate and inert gases none of the listed here release excess steam pressure by bleeding steam. condense steam ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer According to Reynolds analogy, Stanton number is equal to (where, f = Fanning friction factor) 2f f f/4 f/2 2f f f/4 f/2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Low thermal conductivity of heat insulating materials is due to its High specific heat Dense structure None of these High proportion of air space High specific heat Dense structure None of these High proportion of air space ANSWER DOWNLOAD EXAMIANS APP
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