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Process Equipment and Plant Design

Process Equipment and Plant Design
The units of Young's modulus of elasticity and __________ are the same.

None of these
Stress
Modular ratio
Strain

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Process Equipment and Plant Design
What is the minimum recommended ligament for square pitch arrangement in case of heat exchangers?

6.5 mm
6.5 cms
Equal to tube I.D
Equal to tube O.D

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Process Equipment and Plant Design
Which of the following efficiencies can be greater than 100%?

Overall plate efficiency
Point efficiency
None of these
Murphree plate efficiency

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Process Equipment and Plant Design
In the allocated cap area, bubble caps are generally arranged on equilateral triangular pitch. Number of caps fixed on a plate is with a

Neither A nor B
Cap pitch of 1.3-2 times the cap diameter
Either A or B
Clearance of 25-75 mm

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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
Holes of a sieve tray are arranged in triangular pitch of __________ times the hole diameter.

1.5 to 2
5 to 10
2.5 to 5
10 to 15

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