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Process Equipment and Plant Design

Process Equipment and Plant Design
__________ strain is measured using a 'strain rosetter'.

Linear
Volumetric
Shear
None of these

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Process Equipment and Plant Design
For laminar flow (NRe < 2100) in steel pipe, the optimum inside pipe diameter is given by

Di, opt = 3 Q0.36 . ρ1.86 μ0.08
Di, opt = 3 Q0.36 ρ0.18
Di, opt = 7.6 Q0.36 . ρ0.9
Di, opt = 3.9 Q0.45 . ρ0.23

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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.

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

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Process Equipment and Plant Design
Correct use of 'factor of safety' is very important in equipment design. It is defined as the ratio of the

None of these
Ultimate stress to breaking stress
Working stress to ultimate stress
Ultimate stress to working stress

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Process Equipment and Plant Design
Diameter of rivet hole (d, mm) and the plate thickness (t, mm) are related by Unwin's formula as

D = 1.1 t
D = 1.5 t
D = 1.6 √t
D = 3√t

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Process Equipment and Plant Design
The clearance between two tubes in a shell and tube heat exchanger is known as 'ligament', whose minimum value is __________ the outside diameter of the tube, but in no case it should be less than 4.5 mm.

Three fourth
Half
One fourth
Equal to

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