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Process Equipment and Plant Design

Process Equipment and Plant Design
The testing pressure of storage tanks and pressure vessels designed as per Indian standard codes should be about __________ times.the design pressure.

1.5 to 2
>5
3 to 4
4 to 5

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

Temperature
Pressure/pressure fluctuation
Noise
Turbulence

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Process Equipment and Plant Design
Shortest distance between two tubes is

None of these
Called tube pitch
Called tube clearance
More in case of triangular pitch as compared to square pitch of tube layout

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Process Equipment and Plant Design
The thermal stress in a metallic bar does not depend upon the

Changes in temperature
Cross-sectional area
Neither A nor B
Both A & B

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Process Equipment and Plant Design
The minimum plate spacing in most of the pertroleum refinery distillation columns (of dia > 3 ft) is normally __________ inches.

34
12
6
18

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Process Equipment and Plant Design
Normally, the length to diameter ratio of rotary dryers varies form 4 to 10 and for its economic operation, the number of transfer units (NTU) for such dryers varies from

7.5-10.0
1.5-2.5
3.5-5.5
44119

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