In common bubble cap distillation column design practice, riser area is approximately equal to (where, Aa = Annular passage area, and Sa = Slot area) ?

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Which of the following is the best tube material from thermal conductivity point of view alone ?

A. Aluminium B. Stainless steel C. Copper D. Carbon steel...

The dust collection efficiency of a cyclone separator_________________?

A. Decreases with increase in gas flow rate B. Is inversely proportional to the mass of the dust particle C. Is directly proportional to the radius of the dust particle path D. None of these...

The ratio of linear stress to linear strain is termed as the ____________________?

A. Modulus of elasticity B. Modulus of rigidity C. Bulk modulus D. None of these...

The slope of the feed line in distillation operation is given by (where, q = fraction of the feed stream that is liquid ?

A. -q B. -q/(1-q) C. -q/(q-1) D. None of these...

Spherical shaped pressure vessel is considered to be the most ideal, because it can___________________?

A. Withstand higher pressure for a given metallic shell thickness B. Be fabricated very easily C. Be designed without wind load considerations D. Be supported very easily...