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Process Equipment and Plant Design

Process Equipment and Plant Design
Height of the flights in the rotary drier is in the range of

0.5 to 0.6 d
0.08 to 0.12 d
0.2 to 0.5 d
0.02 to 0.05 d

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Process Equipment and Plant Design
Needle valves are generally not used for

Smaller sizes of pipe
Very large diameter pipes
High pressure throttling service
Very accurate flow control

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

1.2 Aa = 1.2 Sa
Aa = 1.5 Sa
Aa = Sa
Sa = 1.5 Aa

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Process Equipment and Plant Design
Most of the storage vessels/tanks are made cylindrical, because of the fact that a cylinder

Has greater structural strength
Is easy to fabricate
Both A & B
Neither A nor B

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Process Equipment and Plant Design
Which of the following is the best tube material from thermal conductivity point of view alone?

Carbon steel
Stainless steel
Copper
Aluminium

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Process Equipment and Plant Design
__________ of water makes it a widely used coolant in heat exchangers.

Low viscosity
Low corrosiveness
Low dirt factor
High specific heat

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