Heat Transfer Which of the following forced convection heat transfer equation accounts for the liquid viscosity effect for viscous liquids? Nusselt equation None of these Dittus-Boeltier equation Sieder-Tate equation Nusselt equation None of these Dittus-Boeltier equation Sieder-Tate equation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which one gives the monochromatic emissive power for black body radiation ? Wien's law Kirchhoffs law Stefan-Boltzman law Planck's law Wien's law Kirchhoffs law Stefan-Boltzman law Planck's law ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Arithmetic mean area can be used in heat transfer problem to calculate the heat flow by conduction through a cylinder which is Both B and C Thin walled having the value of Ao Ai/< 2 Having the value of Ao/Ai > 2 Thick walled Both B and C Thin walled having the value of Ao Ai/< 2 Having the value of Ao/Ai > 2 Thick walled ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer As the difference between the wall temperature and bulk temperature increases, the boiling heat transfer co-efficient goes through a maximum. goes through a minimum continues to increase continues to decrease goes through a maximum. goes through a minimum continues to increase continues to decrease ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A black body does not __________ radiation. Reflect Refract Both B & C Absorb or emit Reflect Refract Both B & C Absorb or emit ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Solid angle subtended by the finite surface at the radiating element is proportional to the square of the distance between surfaces called the angle of vision called the view factor. expressed in terms of radians proportional to the square of the distance between surfaces called the angle of vision called the view factor. expressed in terms of radians ANSWER DOWNLOAD EXAMIANS APP
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