jH factor for heat transfer depends upon the ____________ number?

Related Mcqs:

With increase in temperature, the total emissivity of conductors____________________?

A. Increases B. Decreases C. Remain same D. Decreases linearly...

Open pan evaporators are preferred to be used, when the solution to be concentrated is_________________?

A. Scaling B. Highly viscous C. Corrosive D. Salty...

Extremely large or small volumes of fluids are generally best routed through the shell side of a shell and tube heat exchanger, because of the________________?

A. Less corrosion problems B. Flexibility possible in the baffle arrangement C. Low pressure drop D. High heat transfer co-efficient...

Nusselt number is the ratio of the ____________________?

A. Temperature gradient of the wall to that across the entire pipe B. Temperature difference to the temperature gradient at the wall C. Heat flux at the wall to that across the entire pipe D. None of these...

The wavelength at which the maximum monochromatic emissive power occurs for a black body, is (where, T = absolute temperature of the black body)?

A. αT B. α × 1/T C. α T4 D. Independent of T...