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Process Equipment and Plant Design

Process Equipment and Plant Design
A binary liquid azeotropic mixture has boiling point higher than either of the components, when it shows __________ deviation from Raoult's Law.

Positive
No
Negative
None of these

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Process Equipment and Plant Design
In a double pipe concentric heat exchanger, the equivalent diameter of annulus for heat transfer would be (where, D₁ and D₂ are I.D. of inner and outer pipes)

None of these
(D₂² - D₁²)/D₁²
(D₂² - D₁²)/D₂²
D₂ - D₁

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Process Equipment and Plant Design
The LMTD correction factor (FT) is applied in __________ heat exchangers.

1-1 cocurrent
All multipass
Double pipe
All of these

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Process Equipment and Plant Design
The ends of a cylinderical vessel can be closed by a head, which can be one of the four shapes. For the same thickness, choose the one which can withstand the highest pressure.

Hemispherical
Ellipsoidal
Flat plate
Torispherical

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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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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

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

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