In a shell and tube heat exchanger for a given heat transfer surface area, smaller diameter tubes are favoured as compared to larger diameter ones ; because the smaller diameter tubes

Process Equipment and Plant Design
In a shell and tube heat exchanger for a given heat transfer surface area, smaller diameter tubes are favoured as compared to larger diameter ones ; because the smaller diameter tubes

Are easier to clean

None of these

Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less

Are less prone to fouling

Are easier to clean

None of these

Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less

Are less prone to fouling

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Process Equipment and Plant Design
The longitudinal stress induced in a thin walled cylinderical vessel under internal pressure is

pd/t

pd/4t

pd/2t

pd/8t

pd/t

pd/4t

pd/2t

pd/8t

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Process Equipment and Plant Design
Cylinderical shell thickness of rotary drier is generally __________ mm.

43864

43990

44180

18-22

43864

43990

44180

18-22

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Process Equipment and Plant Design
Flanges are connected to pipes by

Brazing

All of these

Screwing

Welding

Brazing

All of these

Screwing

Welding

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Process Equipment and Plant Design
In most of the shell and tube heat exchangers, the tube pitch is generally __________ the tube diameter.

2.5 times

One-fourth of

Less than

1.25-1.50 times

2.5 times

One-fourth of

Less than

1.25-1.50 times

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Process Equipment and Plant Design
Number of evaporators which can be used in service in a multiple effect evaporation system is limited by the

Both A & B

Economic limit reached, when the plant cost exceeds the saving of steam

Practical limit reached, due to low heat transfer rate because of inadequate temperature difference

Neither A nor B

Both A & B

Economic limit reached, when the plant cost exceeds the saving of steam

Practical limit reached, due to low heat transfer rate because of inadequate temperature difference

Neither A nor B

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Process Equipment and Plant Design

Process Equipment and Plant Design In a shell and tube heat exchanger for a given heat transfer surface area, smaller diameter tubes are favoured as compared to larger diameter ones ; because the smaller diameter tubes

Process Equipment and Plant Design The longitudinal stress induced in a thin walled cylinderical vessel under internal pressure is

Process Equipment and Plant Design Cylinderical shell thickness of rotary drier is generally __________ mm.

Process Equipment and Plant Design Flanges are connected to pipes by

Process Equipment and Plant Design In most of the shell and tube heat exchangers, the tube pitch is generally __________ the tube diameter.

Process Equipment and Plant Design Number of evaporators which can be used in service in a multiple effect evaporation system is limited by the

Process Equipment and Plant Design
In a shell and tube heat exchanger for a given heat transfer surface area, smaller diameter tubes are favoured as compared to larger diameter ones ; because the smaller diameter tubes

Process Equipment and Plant Design
The longitudinal stress induced in a thin walled cylinderical vessel under internal pressure is

Process Equipment and Plant Design
Cylinderical shell thickness of rotary drier is generally __________ mm.

Process Equipment and Plant Design
Flanges are connected to pipes by

Process Equipment and Plant Design
In most of the shell and tube heat exchangers, the tube pitch is generally __________ the tube diameter.

Process Equipment and Plant Design
Number of evaporators which can be used in service in a multiple effect evaporation system is limited by the