The characteristic dimensionless groups for heat transfer to a fluid flowing through a pipe in laminar flow are_______________?

Related Mcqs:

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...

A body cools down from 75°C to 70°C in 10 minutes. It will cool down from 70° C to 65° C in ______________ minutes?

A. 10 B. > 10 C. < 10 D. Either B. or C., depends on the mass of the body...

Nusselt number is a function of Prandtl number and ______________ number of fluid in natural convection heat transfer?

A. Grashoff B. Biot C. Stanton D. Reynolds...

In the free convection regime of pool boiling, the heat flux is proportional to__________________?

A. Δt1/2 B. Δt2 C. Δt5/4 D. Δt...

In case of a vertical tube evaporator, with increase in the liquor level, the ____________ is increased?

A. Velocity of circulation B. Liquor-film co-efficient C. Both A. and B. D. Neither A. and B....