In case of a shell and tube heat exchanger, the effect of L/D on inside film heat transfer co-efficient (hi) vanishes after a Reynold number of

Process Equipment and Plant Design
In case of a shell and tube heat exchanger, the effect of L/D on inside film heat transfer co-efficient (hi) vanishes after a Reynold number of

10000

1000

3000

5000

10000

1000

3000

5000

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Process Equipment and Plant Design
Which of the following material is seldom used for pressure vessel construction?

Killed steel

Semi-killed steel

Mild steel

Rimmed still

Killed steel

Semi-killed steel

Mild steel

Rimmed still

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Process Equipment and Plant Design
Generally, elliptical dished heads

Resist half the pressure rating compared to hemi spherical head provided on the cylindrical shell of the same thickness and diameter

Are approximately as strong as seamless cylindrical shell having the corresponding I.D and O.D

Are manufactured on 2:1 ratio of major to minor axis and is recommended to be used for pressure vessels operating above a pressure of 1.5 MN/m²

All of these

Resist half the pressure rating compared to hemi spherical head provided on the cylindrical shell of the same thickness and diameter

Are approximately as strong as seamless cylindrical shell having the corresponding I.D and O.D

Are manufactured on 2:1 ratio of major to minor axis and is recommended to be used for pressure vessels operating above a pressure of 1.5 MN/m²

All of these

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Process Equipment and Plant Design
In inclined long tube vertical evaporators, the tubes are inclined at an angle of

45°

15°

60°

90°

45°

15°

60°

90°

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Process Equipment and Plant Design
The maximum liquid gradient over a tray must not exceed

Half the tray spacing

0.5" -1.25"

2"-3.5"

5"

Half the tray spacing

0.5" -1.25"

2"-3.5"

5"

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Process Equipment and Plant Design
The clearance between two tubes in a shell and tube heat exchanger is known as 'ligament', whose minimum value is __________ the outside diameter of the tube, but in no case it should be less than 4.5 mm.

Equal to

Half

One fourth

Three fourth

Equal to

Half

One fourth

Three fourth

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Process Equipment and Plant Design

Process Equipment and Plant Design In case of a shell and tube heat exchanger, the effect of L/D on inside film heat transfer co-efficient (hi) vanishes after a Reynold number of

Process Equipment and Plant Design Which of the following material is seldom used for pressure vessel construction?

Process Equipment and Plant Design Generally, elliptical dished heads

Process Equipment and Plant Design In inclined long tube vertical evaporators, the tubes are inclined at an angle of

Process Equipment and Plant Design The maximum liquid gradient over a tray must not exceed

Process Equipment and Plant Design The clearance between two tubes in a shell and tube heat exchanger is known as 'ligament', whose minimum value is __________ the outside diameter of the tube, but in no case it should be less than 4.5 mm.

Process Equipment and Plant Design
In case of a shell and tube heat exchanger, the effect of L/D on inside film heat transfer co-efficient (hi) vanishes after a Reynold number of

Process Equipment and Plant Design
Which of the following material is seldom used for pressure vessel construction?

Process Equipment and Plant Design
Generally, elliptical dished heads

Process Equipment and Plant Design
In inclined long tube vertical evaporators, the tubes are inclined at an angle of

Process Equipment and Plant Design
The maximum liquid gradient over a tray must not exceed

Process Equipment and Plant Design
The clearance between two tubes in a shell and tube heat exchanger is known as 'ligament', whose minimum value is __________ the outside diameter of the tube, but in no case it should be less than 4.5 mm.