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Process Equipment and Plant Design

Process Equipment and Plant Design
Shell side heat transfer co-efficient in case of square pitch as compared to the triangular pitch under similar condition of fluid flow and tube size is

More
Same
Less
Twice

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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.

NH₃
None of these
SO₂
CO₂

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Process Equipment and Plant Design
Angled baffles are preferred in the agitation tank to control the swirling action; if the viscosity of the liquid to be mixed is about 200 poise. However, the baffle may be completely eliminated for mixing liquids having viscoisty above __________ poise.

600
1500
1000
300

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Process Equipment and Plant Design
The wall thickness of thin cylindrical shell with hemispherical ends is __________ that of the spherical ends.

More than
Equal to
Either B or C; depends on maximum permissible internal pressure
Less than

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Process Equipment and Plant Design
Height of the flights in the rotary drier is in the range of

0.2 to 0.5 d
0.02 to 0.05 d
0.08 to 0.12 d
0.5 to 0.6 d

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Process Equipment and Plant Design
An underdesigned steam trap will

Destroy itself of acceleration wear due to rapid recycling
None of these
Waste steam
Back up condensate and cause water hammer in steam line

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