Which of the following is correct ?

Related Mcqs:

Dittus-Boelter equation used for the determination of heat transfer co-efficient is valid ___________________?

A. For fluids in laminar flow B. For fluids in turbulent flow C. When Grashoff number is very important D. For liquid metals...

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...

Latent heat absorbed by 1 lb of water at 212°F, when it is changed to steam at 212°F, may be around ______________ BTU?

A. 180 B. 970 C. 3.97 D. None of these...

A backward feed multiple effect evaporator is better than forward feed for concentrating cold feed, because it provides __________________?

A. Higher economy B. Lower capacity C. Both A. & B. D. Lower economy...