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Process Equipment and Plant Design

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

Stainless steel
Copper
Carbon steel
Aluminium

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Process Equipment and Plant Design
Baffles are provided in a shell and tube heat exchanger to increase the turbulence and velocity of the shell side fluid. Which of the following shaped baffles does not fall in the category of transverse baffle?

Helical type baffle
Flat plate extending across the wall
Segmental baffle
Disk type baffle

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Process Equipment and Plant Design
Lessing ring is formed by the addition of a partition across the centre of a raschig ring, which results in an area increase of about __________ percent.

55
35
5
20

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Process Equipment and Plant Design
Safety valves are provided in chemical equipments to guard against excessive

Noise
Pressure/pressure fluctuation
Turbulence
Temperature

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Process Equipment and Plant Design
An underdesigned steam trap will

Destroy itself of acceleration wear due to rapid recycling
None of these
Back up condensate and cause water hammer in steam line
Waste steam

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Process Equipment and Plant Design
In a thin cylindrical shell, the hoop stress is __________ stress.

Compressive
Circumferential tensile
Longitudinal
Radial

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