Heat Transfer A multiple effect evaporator as compared to a single effect evaporator of the same capacity has Lower steam economy Lower heat transfer area Higher solute concentration in the product Higher steam economy Lower steam economy Lower heat transfer area Higher solute concentration in the product Higher steam economy ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Three solid objects of the same material and of equal mass-a sphere, a cylinder (length = diameter) and a cube are at 500°C initially. These are dropped in a quenching bath containing a large volume of cooling oil each attaining the bath temperature eventually. The time required for 90% change in temperature is the smallest for Cube Cylinder Equal for all the three Sphere Cube Cylinder Equal for all the three Sphere ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer An insulator should have High thermal conductivity A porous structure Low thermal conductivity Less resistance to heat flow High thermal conductivity A porous structure Low thermal conductivity Less resistance to heat flow ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following parameters of the fluid is not very important, while deciding its route in a shell and tube heat exchanger? Density Pressure Viscosity Corrosiveness & fouling characteristics Density Pressure Viscosity Corrosiveness & fouling characteristics ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface temperature follows __________ law. Logarithmic Parabolic Hyperbolic Linear Logarithmic Parabolic Hyperbolic Linear ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dropwise condensation occurs on __________ surfaces smooth clean contaminated cooling polished clean and dirt free smooth clean contaminated cooling polished clean and dirt free ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS