Tubes are fixed to the tube sheet (a thick circular metallic plate) by the method of tube rolling and brazing (non-removable) or ferrule connection (removable). Thickness of the tube, sheet is normally ____________ the outside diameter of the tube but in no case it should be less than 22 mm (7/8″)?

Related Mcqs:

In distillation columns, bubble caps are held in place over trays by ________________?

A. Rivets B. A hold down bar C. Bolts D. Both 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 ideal size of round bubble caps to be used in industrial distillation column having a diameter of 3-6 metres is ________________ cms?

A. 5 B. 15 C. 7.5 D. 50...

25 per cent cut segmental baffle means that the baffle__________________?

A. Height is 75% of the I.D. of the shell B. Height is 25% of the I.D. of the shell C. Spacing is 75% of its height D. Width is 25% of its height...

In a thin cylindrical shell, the hoop stress is ________________ stress?

A. Radial B. Circumferential tensile C. Compressive D. Longitudinal...