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Process Equipment and Plant Design

Process Equipment and Plant Design
In the agitators, the power required will be changed with the increase of diameter of agitator (D) as

D
D²
D⁵
D⁹

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Process Equipment and Plant Design
In most of the shell and tube heat exchangers, the tube pitch is generally __________ the tube diameter.

2.5 times
One-fourth of
Less than
1.25-1.50 times

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Process Equipment and Plant Design
Apex angle of conical heads used in the bottom heads of chemical process equipments is usually

60°
75°
30°
45°

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Process Equipment and Plant Design
For a cylinderical internally pressurised vessel, which of the following closure types would withstand highest pressure, if each closure is of the same material and thickness?

Hemispherical
Ellipsoidal (2 : 1)
Flat plate
Conical

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Process Equipment and Plant Design
The diameter of a propeller agitator used in agitation tank ranges from __________ percent of the tank diameter and its peripherial speed is normally 300 to 500 metres/minute.

55 to 75
40 to 50
5 to 10
15 to 30

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Process Equipment and Plant Design
The minimum baffle height should be

Twice the tank diameter
Equal to the impeller diameter
Twice the impeller diameter
3/4 of the tank height

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