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Process Equipment and Plant Design

Process Equipment and Plant Design
Rivets are generally specified by the

None of these
Head diameter
Shank diameter
Overall length

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Process Equipment and Plant Design
To keep the power input constant for a stirred vessel operating under fully developed turbulent flow conditions (constant power number), if the impeller diameter is increased by 20%, the impeller speed should be decreased by a factor of

(1.2)2/3
(1.2)5/3
(1.2)3/5
(1.2)3/2

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Process Equipment and Plant Design
A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

45
80
60
95

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Process Equipment and Plant Design
The buckling tendency of compression members is always in the direction of the

Axis of the load
Perpendicular to the axis of the load
Least radius of gyration
None of these

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Process Equipment and Plant Design
Hole diameter of the seive trays in the distillation column ranges from __________ mm.

3 to 12.5
L to 3
4 to 8
12.5 to 18.5

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Process Equipment and Plant Design
In common bubble cap distillation column design practice, riser area is approximately equal to (where, Aa = Annular passage area, and Sa = Slot area)

Aa = 1.5 Sa
Sa = 1.5 Aa
Aa = Sa
1.2 Aa = 1.2 Sa

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