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Process Equipment and Plant Design

Process Equipment and Plant Design
The testing pressure of storage tanks and pressure vessels designed as per Indian standard codes should be about __________ times.the design pressure.

1.5 to 2
>5
3 to 4
4 to 5

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Process Equipment and Plant Design
In case of a continuous distillation column, increase in reflux ratio may result in the

All of these
Lower fixed charges for the column
Greater cost for the condenser coolant
Greater cost for the reboiler heat supply

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Process Equipment and Plant Design
A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

95
80
60
45

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Process Equipment and Plant Design
The dust collection efficiency of electrostatic precipitator increases with increase in the

Neither A nor B
Both A & B
Electrode area
Gas flow rate

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Process Equipment and Plant Design
In a shell and tube heat exchanger, the shortest centre to centre distance between the adjacent tubes is

Always less than the diameter of the tube
Called tube pitch
Called tube clearance
None of these

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Process Equipment and Plant Design
Cylinderical shell thickness of rotary drier is generally __________ mm.

43864
18-22
44180
43990

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