Tube wall thickness depends on the corrosiveness of the fluids and their operating pressure & temperature and is specified by Birmingham wire gauge (B.W.G)-a number which varies from 8 to 18 with the numbers 14 and 16 being more commonly used. Outside diameter of tubes varies from about 15 to 50 mm; however a tube of less than _____________ mm outside diameter is generally not recommended for fouling fluids ?

Related Mcqs:

The design stress, which is more than the damaging stress, is the least unit stress that will render a member unfit for service before the end of its normal life. The design stress factor or factor of safety indicates the margin between design stress and the _______________ stress?

A. Working B. Damaging C. Allowable D. None of these...

Liquid redistribution should be done in a packed tower packed with raschig rings every 6 metres or ______________ times the column diameter, whichever is lower?

A. 2.5-3.0 B. 5-7.5 C. 10-12.5 D. 15-20...

Rotary driers are most economically designed for the number of heat transfer units (HTU) from _________________?

A. 0.01 to 1 B. 1.5 to 2.5 C. 5 to 10 D. 10 to 20...

The safe distance of habitation from a hazardous chemical plant (TLV of its product < 1000 ppm) should be about ______________ kms?

A. 1 B. 5 C. 15 D. 25...

The wall thickness for a large high pressure pipeline is determined by the consideration of the____________________?

A. Axial tensile stress in the pipe B. Forces exerted by static and dynamic action at bends C. Circumferential pipe-wall tension D. Temperature stresses...