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Process Equipment and Plant Design

Process Equipment and Plant Design
Generally, no corrosion allowance in wall thickness of a part is required, if the thickness is more than __________ mm.

10
20
5
30

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Process Equipment and Plant Design
Equivalent diameter for heat transfer calculation for a duct of square cross-section having each side as 'd' will be

√(2πd)
√d
√(2d)
D

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Process Equipment and Plant Design
Which of the following types of reactors is the safest from operation point of view?

Pot type reactor
A vapor phase reactor
A liquid phase catalytic reactor
A liquid phase reactor

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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
15 to 30
5 to 10

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Process Equipment and Plant Design
Saddle supports are used for supporting __________ vessels.

Thick walled vertical
Thick spherical
Horizontal cylinderical
Tall vertical

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Process Equipment and Plant Design
Steam economy is defined as the amount of evaporation per unit amount of steam used, while the capacity is the total evaporation obtained per hour. Use of multiple effect in evaporation

Increases economy
Both B & C
Does not affect the capacity
Increases capacity

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