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Process Equipment and Plant Design

Process Equipment and Plant Design
Pressure drop (Δp) and the superficial gas mass velocity (G) in case of packed absorption tower operating in the preloading range are related as

Δp = 1/G0.6
Δp = G
Δp = G2
Δp = G0.5

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Process Equipment and Plant Design
Circumferential (hoop) stress in a thin cylindrical vessel under internal pressure is __________ the longitudinal stress.

Eight times
Twice
Equal to
Half

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Process Equipment and Plant Design
The distance between the centre of a rivet hole to the nearest edge of the plate is called

None of these
Back pitch
Margin
Pitch

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Process Equipment and Plant Design
In packed towers provided with saddle packing, liquid redistributors are positioned at every __________ times column diameter or 6 metres whichever is less.

43864
44119
20-25
43959

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Process Equipment and Plant Design
Tube side pressure drop in a 1-2 heat exchanger (for turbulent flow of fluids through the tubes) is about __________ times, that in a 1-1 heat exchanger having the same size & number of tubes and operated at the same liquid flow rate.

1/2
8
4
2

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Process Equipment and Plant Design
A pipe is generally made of circular cross-section, because a circular cross-section has the

Higher structural strength
Lowest surface area requirement for a given volume
None of these
Both A & B

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