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Process Equipment and Plant Design

Process Equipment and Plant Design
Minimum tube pitch recommended for shell and tube heat exchangers is about __________ times the outside diameter of the tube.

1.75
2.5
3.5
1.25

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Process Equipment and Plant Design
For given number of passes, pitch & tube diameter, the maximum number of tubes that can be accommodated in a shell of tripled inside diameter will be __________ times.

Considerably more than 9
About 3
About 9
Considerably less than 9

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Process Equipment and Plant Design
Hold up of material in a operating rotary drier is in the range of

0.25 to 0.50
0.5 to 0.8
0.8 to 0.9
0.05 to 0.15

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Process Equipment and Plant Design
For a 25 mm hole drilled in plates to be rivetted, the shank diameter of the rivet should be __________ mm.

27
26
23
25

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Process Equipment and Plant Design
The ratio of linear stress to linear strain is termed as the

Bulk modulus
Modulus of rigidity
Modulus of elasticity
None of these

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Process Equipment and Plant Design
Overall mass transfer co-efficient in case of absorption of __________ in water is based on the gas film co-efficient only, as the mass transfer process is gas film (phase) controlling.

SO₂
CO₂
None of these
NH₃

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