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Process Equipment and Plant Design

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

18
12
6
34

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Process Equipment and Plant Design
__________ tower is the most suitable gas-liquid contacting device involving highly corrosive fluids.

None of these
Packed
Bubble cap plate
Sieve plate

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Process Equipment and Plant Design
Friction factor for turbulent flow in a new pipe is given by

f = 16/NRe
f = 0.22 NRe0.05
f = 0.04/NRe0.16
f = 25/NRe

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Process Equipment and Plant Design
For pipe flows, head is proportional to __________ at constant capacity (where D = pipe diameter ).

1/D⁵
D²
1/D²
1/D

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Process Equipment and Plant Design
__________ shaped roof is most commonly used for cylindrical tanks.

Flat
Dome
Cone
Umbrella

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Process Equipment and Plant Design
Diameter of bubble caps used in high pressure columns is __________ as compared to that used in identical vacuum columns.

More
Less
Either A or B; no generalisation can be made
Same

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