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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
0.1-0.5
15-30
1-2

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Process Equipment and Plant Design
The equivalent diameter for fluid flow through a channel of constant non-circular cross section of area 'A' is given by (where, P = perimeter of the channel in contact with the fluid)

4 A/P
√A
A/P
4 P/A

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Process Equipment and Plant Design
A single pass air heater is connected to a two pass unit. For the air flow rate and other conditions remaining the same, the film heat transfer co-efficient for air will vary in the ratio of

20.2
20.8
None of these
2

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Process Equipment and Plant Design
Movement of pipeline caused by thermal expansion is taken care by providing

Change in the shape of pipeline
Expansion joint
Changes in its direction
All of these

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Process Equipment and Plant Design
Tube side heat transfer co-efficient for turbulent flow of liquid through tubes is proportional to

G0.5
G0.8
G0.2
G1.5

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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.

35
5
55
20

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