Normally, the length to diameter ratio of rotary dryers varies from 4 to 10 and for its economic operation; the number of transfer units (NTU) for such dryers varies from ?

Related Mcqs:

___________ tower is the most suitable gas-liquid contacting device involving highly corrosive fluids?

A. Sieve plate B. Packed C. Bubble cap plate D. None of these...

Value of Peclet number = ∞, is the representative of___________________?

A. Laminar flow B. Complete back mixing C. Plug flow D. Eddy diffusivity = 0...

Filtration rate is affected by the________________?

A. Pressure drop across the cake & filter medium B. Cake & filter medium resistance C. Area of filtering surface & the viscosity of filtrate D. All A., B. and C....

The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the_________________?

A. Equal sized reactors are the best B. Smaller reactor should come first C. Larger reactor should come first D. None of these...

The thickness of segmental baffles (25 -35% cut truncated plates usually) is generally _____________ the tube wall thickness?

A. Equal to B. Twice C. Four times D. Half...