The equivalent diameter for fluid flow through a channel of constant non-circular cross section of area ‘A’ is given by (where, P = perimeter of the channel in contact with the fluid) ?

Related Mcqs:

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 ?

A. 16 B. 19 C. 28 D. 38...

_____________ shaped roof is the most commonly used roof for cylindrical storage tanks?

A. Conical B. Flat C. Dome D. Umbrella...

With increase in pressure drop (for a given particle size), the dust collection efficiency of a cyclone separator will________________?

A. Increase B. Decrease C. Remain unaffected D. Increase or decrease depending on the nature of the dust...

Width and depth of grooves in the tube sheet holes normally are _______________ inch respectively?

A. 1/8 and 1/64 B. 1/64 and 1/8 C. 1/2 and 8 D. 1/2 and 5...

The operating velocity in the absorption tower is usually 40-50% of the flooding velocity. Packed absorption towers are normally designed for a pressure drop of about _________________ mm of water column per metre height of packing?

A. 1-5 B. 20-40 C. 100-150 D. 1000-1500...