Heat Transfer Grashhoff number is given by gD2βΔtρ/μ² gD³.β.Δtρ²/μ² gD³βΔtP²/μ gD2βΔtP²μ gD2βΔtρ/μ² gD³.β.Δtρ²/μ² gD³βΔtP²/μ gD2βΔtP²μ ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The advantage of using a 1 - 2 shell and tube heat exchanger over a 1 - 1 shell and tube heat exchanger is Higher shell side heat transfer co-efficient Lower shell side pressure drop Higher tube side heat transfer co-efficient Lower tube side pressure drop Higher shell side heat transfer co-efficient Lower shell side pressure drop Higher tube side heat transfer co-efficient Lower tube side pressure drop ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In regenerative air preheater (as practised in heating of coke ovens), the heat is transferred None of these By direct contact of hot flue gas with air Through a metallic wall By heating an intermediate material (like chequor bricks) and then heating the air from this hot material None of these By direct contact of hot flue gas with air Through a metallic wall By heating an intermediate material (like chequor bricks) and then heating the air from this hot material ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A black body does not __________ radiation. Reflect Absorb or emit Refract Both B & C Reflect Absorb or emit Refract Both B & C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following forced convection heat transfer equation accounts for the liquid viscosity effect for viscous liquids? Dittus-Boeltier equation Nusselt equation None of these Sieder-Tate equation Dittus-Boeltier equation Nusselt equation None of these Sieder-Tate equation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer rate described by Fourier's law will decrease, if the __________ increases. Temperature difference Thickness Thermal conductivity Heat transfer area Temperature difference Thickness Thermal conductivity Heat transfer area ANSWER DOWNLOAD EXAMIANS APP
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