Heat and Mass Transfer The thermal diffusivities for solids are generally More or less same as for liquids and gases Less than those for liquids Less than those for gases More than those for liquids and gases More or less same as for liquids and gases Less than those for liquids Less than those for gases More than those for liquids and gases ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Heat conducted through per unit area and unit thick face per unit time when temperature difference between opposite faces is unity, is called Thermal resistance Thermal conductivity Thermal coefficient Temperature gradient Thermal resistance Thermal conductivity Thermal coefficient Temperature gradient ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The process of heat transfer from one particle of the fluid to another by the actual movement of the fluid particles caused by some mechanical means, is known as Radiation Free convection Forced convection Conduction Radiation Free convection Forced convection Conduction ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Planck’s law holds good for black bodies polished bodies all coloured bodies All of these black bodies polished bodies all coloured bodies All of these ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Unit of thermal diffusivity is m²/hr kcal/m² hr m²/hr °C kcal/m. hr °C m²/hr kcal/m² hr m²/hr °C kcal/m. hr °C ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Which of the following is expected to have highest thermal conductivity? Solid ice Steam Melting ice Water Solid ice Steam Melting ice Water ANSWER DOWNLOAD EXAMIANS APP
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