Maximum acceptable total liquid gradient over a tray is about __________ mm.

Process Equipment and Plant Design
Maximum acceptable total liquid gradient over a tray is about __________ mm.

5.5

30.5

45.5

12.5

5.5

30.5

45.5

12.5

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Process Equipment and Plant Design
For a cylindrical shell, (subject to the thickness of uppermost course being more than the minimum for diaofthe tank in question), the thickness of the courses of shell

May decrease or increase upwards depending upon whether vacuum or positive pressure would be maintained inside the shell

Remains same throughout

Increases upwards

Decreases upwards

May decrease or increase upwards depending upon whether vacuum or positive pressure would be maintained inside the shell

Remains same throughout

Increases upwards

Decreases upwards

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Process Equipment and Plant Design
In case of design of a shell and tube heat exchanger,

Minimum tube sheet thickness (in which tubes are fixed) is equal to the O.D. of the tube upto 15 mm tube diameter; and for > 15 mm tube diameter, tube sheet thickness is smaller than tube diameter

Minimum cleaning lane of 6.5 mm is provided, when tubes are on a square pitch

O.D. of the tube is 6 to 40 mm while the tube lengths used are 0.5, 2.5, 3.0, 4.0, 5.0, 6 metres

All of these

Minimum tube sheet thickness (in which tubes are fixed) is equal to the O.D. of the tube upto 15 mm tube diameter; and for > 15 mm tube diameter, tube sheet thickness is smaller than tube diameter

Minimum cleaning lane of 6.5 mm is provided, when tubes are on a square pitch

O.D. of the tube is 6 to 40 mm while the tube lengths used are 0.5, 2.5, 3.0, 4.0, 5.0, 6 metres

All of these

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Process Equipment and Plant Design
Value of Peclet number = ∞, is the representative of

Eddy diffusivity = 0

Laminar flow

Plug flow

Complete back mixing

Eddy diffusivity = 0

Laminar flow

Plug flow

Complete back mixing

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Process Equipment and Plant Design
A cylinderical pressure vessel of volume 6 πm³ has to be designed to withstand a maximum internal pressure of 10 atm. The allowable design stress of the material is 125N/mm² and corrosion allowance is 2 mm. The thickness of the vessel for a length/diameter ratio of 3 will be close to

5 mm

6 mm

8 mm

10 mm

5 mm

6 mm

8 mm

10 mm

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Process Equipment and Plant Design
Heat transfer co-efficient, hG(Kcal/hr.m² .°C) and mass velocity of air, G (kg/hr.m² ) for air flow parallel to the surface in case of constant drying rate in batch drying is related as hG = 0.0176G0.8. But when the flow of air perpendicular to the surface is encountered, this equation changes to

HG = 0.0176G0.37

1.004G0.8

0.0176G1.37

HG = 1.004G0.37

HG = 0.0176G0.37

1.004G0.8

0.0176G1.37

HG = 1.004G0.37

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Process Equipment and Plant Design

Process Equipment and Plant Design Maximum acceptable total liquid gradient over a tray is about __________ mm.

Process Equipment and Plant Design For a cylindrical shell, (subject to the thickness of uppermost course being more than the minimum for diaofthe tank in question), the thickness of the courses of shell

Process Equipment and Plant Design In case of design of a shell and tube heat exchanger,

Process Equipment and Plant Design Value of Peclet number = ∞, is the representative of

Process Equipment and Plant Design
Maximum acceptable total liquid gradient over a tray is about __________ mm.

Process Equipment and Plant Design
For a cylindrical shell, (subject to the thickness of uppermost course being more than the minimum for diaofthe tank in question), the thickness of the courses of shell

Process Equipment and Plant Design
In case of design of a shell and tube heat exchanger,

Process Equipment and Plant Design
Value of Peclet number = ∞, is the representative of