In case of heat transfer by conduction in a hollow cylinder, ______________ mean area is used to calculate the heat transfer rate?

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...

LMTD for counter-flow and parallel flow heat exchanger will be the same, when the_________________?

A. Cold fluid is heated to a certain temperature by condensing steam (isothermal fluid) B. Outlet temperature of both the hot and cold fluid are same C. Outlet temperature of hot fluid is less than the outlet temperature of the cold fluid D. None of these...

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...

Economy of a multiple effect evaporator depends upon the _____________________?

A. Heat balance consideration B. Rate of heat transfer C. Both A. and B. D. Neither A. nor B....

Nusselt number (for forced convection heat transfer) is a function of the _____________ number?

A. Prandtl B. Reynolds C. Both A. & B. D. Neither A. nor B....