All analogy equations connecting friction factor and heat transfer co-efficient apply only to ___________________?

Related Mcqs:

Electro-magnetic spectrum range, which is important for radiation varies from _____________ microns?

A. 1 to 100 B. 0.5 to 50 C. 10 to 100 D. 100 to 1000...

The Sieder-Tate correlation for heat transfer in turbulent flow in pipe gives Nu α Re0.8, where, Nu is the Nusselt number and Re is the Reynolds number for the flow. Assuming that this relation is valid, the heat transfer co-efficient varies with the pipe diameter D. as _________________?

A. D-1.8 B. D-0.2 C. D0.2 D. D1.8...

In sub-cooled boiling ?

A. Temperature of the heating surface is less than the boiling point of the liquid B. Temperature of the heating surface is more than the boiling point of the liquid C. Bubbles from heating surface are absorbed by the mass of the liquid D. Very large vapour space is necessary...

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

A. Δt1/2 B. Δt2 C. Δt5/4 D. Δt...

During crystallisation, formation of crystal can occur in ______________ solution only?

A. Saturated B. Supersaturated C. Under-saturated D. All A., B. and C....