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Process Equipment and Plant Design

Process Equipment and Plant Design
Vertical vessels are not supported by

Saddles
Brackets
Skirts
Columns

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Process Equipment and Plant Design
In a multipass shell and tube heat exchanger, the shell side cross flow area does not depend upon

None of these
Pitch
Baffle spacing
Clearance

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Process Equipment and Plant Design
Pressure drop due to pipe fittings can be estimated by the equation, ΔP/p = 4f.Le/D.V2/2gc, where, Le = equivalent length of straight pipeline which will incur the same frictional loss as the fitting and D = diameter of the fitting. The value of Le/D (dimensionless) for 45° elbow and 180° close return bends would be respectively around

5 and 10
45 and 75
300 and 500
180 and 300

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Process Equipment and Plant Design
With increase in the reflux ratio for a fixed production from a continuous binary distillation column, the __________ decreases.

Running cost of steam for reboiler
Vapour & liquid load both
Fixed charges initially
Running cost of cooling water for condenser

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Process Equipment and Plant Design
The design stress, which is more than the damaging stress, is the least unit stress that will render a member unfit for service before the end of its normal life. The design stress factor or factor of safety indicates the margin between design stress and the __________ stress.

Working
Damaging
None of these
Allowable

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

Stress
Strain
None of these
Modular ratio

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