Heat Transfer Which of the following is the most controlling factor for the rate of bubble detachment from the hot solid surface? Hot surface temperature Interfacial tension Liquid density Liquid viscosity Hot surface temperature Interfacial tension Liquid density Liquid viscosity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Air is to be heated by condensing steam. Two heat exchangers are available (i) a shell and tube heat exchanger and (ii) a finned tube heat exchanger. Tube side heat transfer area are equal in both the cases. The recommended arrangement is Shell and tube heat exchanger with air inside tubes and steam on shell side Finned tube heat exchanger with air outside and steam inside Shell and tube heat exchanger with air on shell side and steam inside tubes Finned tube heat exchanger with air inside and steam outside Shell and tube heat exchanger with air inside tubes and steam on shell side Finned tube heat exchanger with air outside and steam inside Shell and tube heat exchanger with air on shell side and steam inside tubes Finned tube heat exchanger with air inside and steam outside ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Prandtl number is the reciprocal of Mass diffusivity x Momentum diffusivity Thermal diffusivity x Mass diffusivity Thermal diffusivity/Momentum diffusivity Thermal diffusivity x Momentum Mass diffusivity x Momentum diffusivity Thermal diffusivity x Mass diffusivity Thermal diffusivity/Momentum diffusivity Thermal diffusivity x Momentum ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Unsteady state heat conduction occurs, when Temperature distribution is dependent on time Three dimensional heat flow is concerned Temperature distribution is independent of time Heat flows in one direction only Temperature distribution is dependent on time Three dimensional heat flow is concerned Temperature distribution is independent of time Heat flows in one direction only ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In forced convection, the heat transfer depends on Re, Pr none of the listed here mainly Gr Re, Gr Re, Pr none of the listed here mainly Gr Re, Gr ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a fluid flowing in an annulus space, the wetted perimeter for heat transfer and pressure drop are Never different Different Linearly related Same Never different Different Linearly related Same ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS