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Process Equipment and Plant Design

Process Equipment and Plant Design
A rivetted joint does not fail by __________ of rivets.

None of these
Shearing
Tearing of the plate across a row
Tearing

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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.

300
1000
600
1500

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Process Equipment and Plant Design
Friction factor for turbulent flow in a new pipe is given by

f = 0.04/NRe0.16
f = 0.22 NRe0.05
f = 25/NRe
f = 16/NRe

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Process Equipment and Plant Design
In a multipass shell and tube heat exchanger, the problem of differential expansion between the shell and tube passes is taken care of by using a

Neither A nor B
U-bend
Either A or B
Floating head tube sheet

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Process Equipment and Plant Design
Which tube arrangement in a heat exchanger would facilitate highest heat transfer rate?

Diagonal square pitch
Square pitch
Triangular pitch
Heat transfer rate is independent of tube arrangement

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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)3/2
(1.2)3/5

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