Process Equipment and Plant Design MCQs

The shell side pressure drop in a shell and tube heat exchanger is maximum for __________ baffle.

Pressure drop due to pipe fittings can be estimated by the equation, $$\frac{{\Delta {\text{p}}}}{\rho } = 4{\text{f}}.\frac{{{{\text{L}}_{\text{e}}}}}{{\text{D}}}.\frac{{{{\text{V}}^2}}}{{2{\text{gc}}}},$$    where, L_e = equivalent length of straight pipeline which will incur the same frictional loss as the fitting and D = diameter of the fitting. The value of $$\frac{{{{\text{L}}_{\text{e}}}}}{{\text{D}}}$$ (dimensionless) for 45° elbow and 180° close return bends would be respectively around

The length of straight rectangular weir used on cross-flow trays is generally __________ the column diameter.

Brass valves are usually made for pipe sizes __________ inches.

Commercial packed scrubbers are normally designed for a pressure drop range of __________ mm water coloumn per metre of packed height.

Pick out the wrong statement.

Bracket supports are the most suitable for supporting __________ vessels.

Pick out the wrong statement pertaining to the design of the distillation column.

Cylinderical shell thickness of rotary drier is generally __________ mm.