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Process Equipment and Plant Design

Process Equipment and Plant Design
Generally, no corrosion allowance in wall thickness of a part is required, if the thickness is more than __________ mm.

10
30
5
20

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Process Equipment and Plant Design
Nominal size of a pipe is an indication of its __________ diameter.

Outer
Approximate
Inner
None of these

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Process Equipment and Plant Design
A cylinderical pressure vessel of volume 6 πm³ has to be designed to withstand a maximum internal pressure of 10 atm. The allowable design stress of the material is 125N/mm² and corrosion allowance is 2 mm. The thickness of the vessel for a length/diameter ratio of 3 will be close to

5 mm
6 mm
8 mm
10 mm

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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

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

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Process Equipment and Plant Design
Which of the following is the most common type of baffle used in industrial shell and tube heat exchanger?

75% cut segmental baffle
Disk and doughnut baffle
25% cut segmental baffle
Orifice baffle

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Process Equipment and Plant Design
Which of the following factors affect the pressure drop in a co-current gas-liquid absorption packed tower?

All of these
Fluid flow rates
Size, shape, orientation and surface of the packing particles
Density and viscosity of fluids

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