A certain pressure vessel manufacturer avoids doing reinforcements calculations for openings by always providing a reinforcing pad extending upto double the diameter of the opening and of the same material and thickness as that of the shell wall. If area compensation is accepted as a code guideline, his approach leads to safe design

Process Equipment and Plant Design
A certain pressure vessel manufacturer avoids doing reinforcements calculations for openings by always providing a reinforcing pad extending upto double the diameter of the opening and of the same material and thickness as that of the shell wall. If area compensation is accepted as a code guideline, his approach leads to safe design

Only if the opening is on a vertical cylinderical vessel

Only if the opening is on a horizontal cylinderical vessel

Only if the opening is on spherical vessel

Irrespective of the shape of the vessel

Only if the opening is on a vertical cylinderical vessel

Only if the opening is on a horizontal cylinderical vessel

Only if the opening is on spherical vessel

Irrespective of the shape of the vessel

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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 - dh)/dh

(ph - dt)/ph

(ph - dh . dt/2)/ph

(ph - dh)/ph

(ph - dh)/dh

(ph - dt)/ph

(ph - dh . dt/2)/ph

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Process Equipment and Plant Design
Smaller sized packings are generally dumped to the packed columns, and the large ones of size greater than __________ mm are stacked individually, which provides better control over bed porosity and offers lower gas pressure drop.

150

25

75

50

150

25

75

50

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Process Equipment and Plant Design
In distillation columns, bubble caps are held in place over trays by

Bolts

Rivets

Both B and C

A hold down bar

Bolts

Rivets

Both B and C

A hold down bar

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Process Equipment and Plant Design
In a vertical short tube evaporator (Calendria type), the

All of these

Tube dia of 2.5-7.5 cms, tube length of 75-200 cms and cylinderical drum dia of 1-6 metres are normally used

Liquor is inside the tube while the steam is outside the tube

Area of central downtake is equal to 40 to 100% of total cross-sectional area of the surrounding tube

All of these

Tube dia of 2.5-7.5 cms, tube length of 75-200 cms and cylinderical drum dia of 1-6 metres are normally used

Liquor is inside the tube while the steam is outside the tube

Area of central downtake is equal to 40 to 100% of total cross-sectional area of the surrounding tube

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Process Equipment and Plant Design
Which of the following factors affect the pressure drop in a co-current gas-liquid absorption packed tower?

Density and viscosity of fluids

Fluid flow rates

All of these

Size, shape, orientation and surface of the packing particles

Density and viscosity of fluids

Fluid flow rates

All of these

Size, shape, orientation and surface of the packing particles

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Process Equipment and Plant Design

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 Smaller sized packings are generally dumped to the packed columns, and the large ones of size greater than __________ mm are stacked individually, which provides better control over bed porosity and offers lower gas pressure drop.

Process Equipment and Plant Design In distillation columns, bubble caps are held in place over trays by

Process Equipment and Plant Design In a vertical short tube evaporator (Calendria type), the

Process Equipment and Plant Design Which of the following factors affect the pressure drop in a co-current gas-liquid absorption packed tower?

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
Smaller sized packings are generally dumped to the packed columns, and the large ones of size greater than __________ mm are stacked individually, which provides better control over bed porosity and offers lower gas pressure drop.

Process Equipment and Plant Design
In distillation columns, bubble caps are held in place over trays by

Process Equipment and Plant Design
In a vertical short tube evaporator (Calendria type), the

Process Equipment and Plant Design
Which of the following factors affect the pressure drop in a co-current gas-liquid absorption packed tower?