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Process Equipment and Plant Design

Process Equipment and Plant Design
The normal range of velocity of water in pipes is __________ m/sec.

10-50
1-2
15-30
0.1-0.5

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Process Equipment and Plant Design
In a heat exchanger, shell side fluid velocity can be changed by changing the tube

Pitch
Neither A nor B
Layout
Both A & B

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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
5
30
20

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Process Equipment and Plant Design
Normally, the ratio of the total riser area to the tower cross sectional area (for bubble cap towers of diameter more than 3 ft) is around

0.35-0.75
0.1-0.2
0.55-0.85
0.4-0.6

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

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

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Process Equipment and Plant Design
Speed of industrial paddle agitator ranges from __________ rpm.

1 to 5
500 to 750
20 to 100
1000 to 2000

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