The ratio of momentum diffusivity to thermal diffusivity is the ______________ number?

Related Mcqs:

Evaporator tubes are generally_____________________?

A. Horizontal B. Vertical C. Inclined D. Random...

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...

To reduce the tube side pressure drop for the same flow rate, the heat exchanger recommended is _______________?

A. 1-2 heat exchanger B. 1-1 heat exchanger C. 3-2 heat exchanger D. 2-4 heat exchanger...

Stefan-Boltzmann law which describes the radiation heat transfer states that, it is proportional to (where, t = temperature in °C T = absolute temperature in ° K) ?

A. t4 B. T4 C. 1/t4 D. 1/T4...