The minimum plate spacing in most of the pertroleum refinery distillation columns (of dia > 3 ft) is normally __________ inches.

Process Equipment and Plant Design
The minimum plate spacing in most of the pertroleum refinery distillation columns (of dia > 3 ft) is normally __________ inches.

6

12

18

34

6

12

18

34

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

Square pitch

Triangular pitch

Diagonal square pitch

Heat transfer rate is independent of tube arrangement

Square pitch

Triangular pitch

Diagonal square pitch

Heat transfer rate is independent of tube arrangement

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Process Equipment and Plant Design
Practical dividing line between a ductile and brittle materials is suggested, when the ultimate elongation is about 5%. Generally, larger the knuckle radius, stronger is the corner torus section of a head. The knuckle radius provided should be less than __________ of the head.

Either A or B, whichever is smaller

6% of I.D.

Either A or B, whichever is larger

3 times the thickness

Either A or B, whichever is smaller

6% of I.D.

Either A or B, whichever is larger

3 times the thickness

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Process Equipment and Plant Design
Liquid gradient over a tray can be minimised by

Decreasing the number of rows of caps through which the liquid flows or by decreasing the velocity of liquid flow past the caps or by reducing the distance along the tray through which the liquid must

Using split flow, radial flow or cascade flow for column diameter large than 4 ft

All of these

Providing a higher skirt clearance or a higher weir

Decreasing the number of rows of caps through which the liquid flows or by decreasing the velocity of liquid flow past the caps or by reducing the distance along the tray through which the liquid must

Using split flow, radial flow or cascade flow for column diameter large than 4 ft

All of these

Providing a higher skirt clearance or a higher weir

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Process Equipment and Plant Design
Any shell opening greater than 5 cms for a storage tank must be reinforced for reason of

None of these

Reduction of discontinuity in shape at the junction

Preventing the local overstressing of the shell around the opening

Making the joint leak proof

None of these

Reduction of discontinuity in shape at the junction

Preventing the local overstressing of the shell around the opening

Making the joint leak proof

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Process Equipment and Plant Design
The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the

None of these

Larger reactor should come first

Equal sized reactors are the best

Smaller reactor should come first

None of these

Larger reactor should come first

Equal sized reactors are the best

Smaller reactor should come first

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Process Equipment and Plant Design

Process Equipment and Plant Design The minimum plate spacing in most of the pertroleum refinery distillation columns (of dia > 3 ft) is normally __________ inches.

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

Process Equipment and Plant Design Liquid gradient over a tray can be minimised by

Process Equipment and Plant Design Any shell opening greater than 5 cms for a storage tank must be reinforced for reason of

Process Equipment and Plant Design The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the

Process Equipment and Plant Design
The minimum plate spacing in most of the pertroleum refinery distillation columns (of dia > 3 ft) is normally __________ inches.

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

Process Equipment and Plant Design
Liquid gradient over a tray can be minimised by

Process Equipment and Plant Design
Any shell opening greater than 5 cms for a storage tank must be reinforced for reason of

Process Equipment and Plant Design
The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the