Which of the following lengths of heat exchanger tubes are normally not used in practice ?

Related Mcqs:

The minimum baffle height should be ______________?

A. Equal to the impeller diameter B. Twice the impeller diameter C. Twice the tank diameter D. 3/4 of the tank height...

Frame thickness in the plate and frame filter press is normally in the range of ______________ inches?

A. 0.25 to 4 B. 0.25 to 8 C. 1 to 5 D. 1 to 12...

Pick out the wrong statement ?

A. Plate efficiency increases with increase in superficial vapour velocity till entrainment limit B. Increase in depth of the liquid about the slots increases the plate efficiency, particularly if the liquid depth is < 1" C. Too small a plate spacing can cause a low efficiency, if the vapour velocity is greater than the allowable … Pick out the wrong statement ?Read More...

Normally, the ratio of the total riser area to the tower cross sectional area (for bubble cap towers of diameter more than 3 ft) is around_______________?

A. 0.4-0.6 B. 0.35-0.75 C. 0.1-0.2 D. 0.55-0.85...

Pick out the wrong statement about the design of sieve plate column and the bubble cap column ?

A. The downcomer design and the residence time in the downcomer is almost same for sieve plate and bubble cap columns B. Weir length for a bubble cap plate is the same as that for the sieve plate C. Weir height for a bubble cap plate column is the same as that for a sieve … Pick out the wrong statement about the design of sieve plate column and the bubble cap column ?Read More...