A measure of the extent to which viscous heating is important relative to the heat flow resulting from the impressed temperature difference is represented by the _______________ number?

Related Mcqs:

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?

A. Parabolic B. Hyperbolic C. Linear D. Logarithmic...

The thermal boundary layer at NPr > 1 ?

A. Is thicker than hydrodynamic boundary layer B. Is thinner than hydrodynamic boundary layer C. And the hydrodynamic boundary layers are identical D. Disappears...

Heat transfer by conduction in the turbulent core of a fluid flowing through a heated pipe is negligible, if the value of Prandtl number is_______________?

A. 0.2 B. 0.4 C. 0.6 D. 0.8...

For _______________ Prandtl number values, the heat conduction will be negligible in the buffer zone?

A. Extremely low B. Low C. High D. No...

Extremely large or small volumes of fluids are generally best routed through the shell side of a shell and tube heat exchanger, because of the________________?

A. Less corrosion problems B. Flexibility possible in the baffle arrangement C. Low pressure drop D. High heat transfer co-efficient...