Heat transfer by natural convection is enhanced in system with__________________?

Related Mcqs:

In case of a super-cooled solution, which is on the verge of crystallisation, the free energy of the solution as compared to that of the solid is ________________?

A. More B. Less C. Same D. More or less; depends on the nature of solution...

It is not preferable to use superheated steam in evaporators, because of its very_________________?

A. High temperature B. High pressure C. Low film co-efficient D. None of these...

Heat transfer rate described by Fourier’s law will decrease, if the _____________ increases?

A. Thermal conductivity B. Thickness C. Temperature difference D. Heat transfer area...

The heat transfer co-efficient in film type condensation is _______________ that for dropwise condensation?

A. Greater than B. Lower than C. Is same as D. Half...

In forced convection, the heat transfer depends on _______________?

A. Re, Pr B. Re, Gr C. Mainly Gr D. Re only...