In a double pipe (concentric) heat exchanger, the hydraulic radius for heat transfer (for a fluid flowing through the annulus) would be

Process Equipment and Plant Design
In a double pipe (concentric) heat exchanger, the hydraulic radius for heat transfer (for a fluid flowing through the annulus) would be

Same as that for fluid flow

More than that for fluid flow

Less than that for fluid flow

D₂ - D₁ (D₁ and D₂ are I.D. of inner and outer pipes respectively)

Same as that for fluid flow

More than that for fluid flow

Less than that for fluid flow

D₂ - D₁ (D₁ and D₂ are I.D. of inner and outer pipes respectively)

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Process Equipment and Plant Design
Pick out the wrong statement pertaining to the design of a basket type evaporator.

Downtake is formed by the annular space between the bundle and the shell

The tube bundle is suspended on bracket

There is no central downtake

It is used for high viscosity liquor having large rate of scaling

Downtake is formed by the annular space between the bundle and the shell

The tube bundle is suspended on bracket

There is no central downtake

It is used for high viscosity liquor having large rate of scaling

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Process Equipment and Plant Design
Excessive liquid gradient on a tray may result in the

Gas blowing beneath cap skit

All of these

Back trapping

Maldistribution of gas

Gas blowing beneath cap skit

All of these

Back trapping

Maldistribution of gas

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Process Equipment and Plant Design
The value of fouling factor depends upon the

Suspended solids in the fluid

Velocity of process fluid containing suspended solids

All of these

Characteristic of process fluid

Suspended solids in the fluid

Velocity of process fluid containing suspended solids

All of these

Characteristic of process fluid

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Process Equipment and Plant Design
Heat transfer co-efficient for a horizontal condenser as compared to a vertical condenser operating under similar conditions is

Less

About 0.33 times

Same

About 3 times

Less

About 0.33 times

Same

About 3 times

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

Bolts

Rivets

A hold down bar

Both B and C

Bolts

Rivets

A hold down bar

Both B and C

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Process Equipment and Plant Design

Process Equipment and Plant Design In a double pipe (concentric) heat exchanger, the hydraulic radius for heat transfer (for a fluid flowing through the annulus) would be

Process Equipment and Plant Design Pick out the wrong statement pertaining to the design of a basket type evaporator.

Process Equipment and Plant Design Excessive liquid gradient on a tray may result in the

Process Equipment and Plant Design The value of fouling factor depends upon the

Process Equipment and Plant Design Heat transfer co-efficient for a horizontal condenser as compared to a vertical condenser operating under similar conditions is

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

Process Equipment and Plant Design
In a double pipe (concentric) heat exchanger, the hydraulic radius for heat transfer (for a fluid flowing through the annulus) would be

Process Equipment and Plant Design
Pick out the wrong statement pertaining to the design of a basket type evaporator.

Process Equipment and Plant Design
Excessive liquid gradient on a tray may result in the

Process Equipment and Plant Design
The value of fouling factor depends upon the

Process Equipment and Plant Design
Heat transfer co-efficient for a horizontal condenser as compared to a vertical condenser operating under similar conditions is

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