Engineering MCQs

Film coefficient is defined as the ratio of

by
thermal conductivity to the equivalent thickness of the film of fluid
temperature drop through the films of fluids to the thickness of film of fluids
thickness of film of fluid to the thermal conductivity
thickness of film of f
✅ The correct answer is option A.

The assumption made in two stage compression with intercooler is that

by
there is no pressure drop in the intercooler
the compression in both the cylinders is polytropic
the suction and delivery of air takes place at constant pressure
all of the above
✅ The correct answer is option D.