Tube wall thickness depends on the cor-rosiveness of the fluids and their operating pressure & temperature and is specified by Birmingham wire gauge (B.W.G)-a number which varies from 8 to 18 with the numbers 14 and 16 being more commonly used. Outside diameter of tubes varies from about 15 to 50 mm; however a tube of less than __________ mm outside diameter is generally not recommended for fouling fluids.

Process Equipment and Plant Design
Tube wall thickness depends on the cor-rosiveness of the fluids and their operating pressure & temperature and is specified by Birmingham wire gauge (B.W.G)-a number which varies from 8 to 18 with the numbers 14 and 16 being more commonly used. Outside diameter of tubes varies from about 15 to 50 mm; however a tube of less than __________ mm outside diameter is generally not recommended for fouling fluids.

28

19

38

16

28

19

38

16

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Process Equipment and Plant Design
Normally, the length to diameter ratio of rotary dryers varies form 4 to 10 and for its economic operation, the number of transfer units (NTU) for such dryers varies from

3.5-5.5

7.5-10.0

44119

1.5-2.5

3.5-5.5

7.5-10.0

44119

1.5-2.5

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Process Equipment and Plant Design
Which of the following is not a graphical method (but is an analytical method) for the calculation of theoretical number of stages in case of continuous binary distillation?

Sorel-Lewis method

McCabe-Thiele's method

Ponchon-Savarit method

None of these

Sorel-Lewis method

McCabe-Thiele's method

Ponchon-Savarit method

None of these

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Process Equipment and Plant Design
A perforated plate has holes of diameter dh arranged in a pitch ph. Each hole has a tube of I.D. dt passing through it. The ligament efficiency is given by

(ph - dh)/ph

(ph - dt)/ph

(ph - dh)/dh

(ph - dh . dt/2)/ph

(ph - dh)/ph

(ph - dt)/ph

(ph - dh)/dh

(ph - dh . dt/2)/ph

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Process Equipment and Plant Design
Pick out the wrong statement about routing of fluids in a shell and tube heat exchanger.

The corrosive and fouling fluid should be preferably routed through the tubes

The viscous fluid should be routed through the shell side

Lower flow rate fluid should be routed through the shell side

Higher pressure fluid stream should be routed through the shell side

The corrosive and fouling fluid should be preferably routed through the tubes

The viscous fluid should be routed through the shell side

Lower flow rate fluid should be routed through the shell side

Higher pressure fluid stream should be routed through the shell side

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Process Equipment and Plant Design
Bracket supports are the most suitable for supporting __________ vessels.

Horizontal

Thin shperical (e.g. Horton sphere)

Thick walled vertical

None of these

Horizontal

Thin shperical (e.g. Horton sphere)

Thick walled vertical

None of these

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Process Equipment and Plant Design

Process Equipment and Plant Design Normally, the length to diameter ratio of rotary dryers varies form 4 to 10 and for its economic operation, the number of transfer units (NTU) for such dryers varies from

Process Equipment and Plant Design Which of the following is not a graphical method (but is an analytical method) for the calculation of theoretical number of stages in case of continuous binary distillation?

Process Equipment and Plant Design A perforated plate has holes of diameter dh arranged in a pitch ph. Each hole has a tube of I.D. dt passing through it. The ligament efficiency is given by

Process Equipment and Plant Design Pick out the wrong statement about routing of fluids in a shell and tube heat exchanger.

Process Equipment and Plant Design Bracket supports are the most suitable for supporting __________ vessels.

Process Equipment and Plant Design
Normally, the length to diameter ratio of rotary dryers varies form 4 to 10 and for its economic operation, the number of transfer units (NTU) for such dryers varies from

Process Equipment and Plant Design
Which of the following is not a graphical method (but is an analytical method) for the calculation of theoretical number of stages in case of continuous binary distillation?

Process Equipment and Plant Design
A perforated plate has holes of diameter dh arranged in a pitch ph. Each hole has a tube of I.D. dt passing through it. The ligament efficiency is given by

Process Equipment and Plant Design
Pick out the wrong statement about routing of fluids in a shell and tube heat exchanger.

Process Equipment and Plant Design
Bracket supports are the most suitable for supporting __________ vessels.