Tube side pressure drop in a 1-2 heat exchanger (for turbulent flow of fluids through the tubes) is about __________ times, that in a 1-1 heat exchanger having the same size & number of tubes and operated at the same liquid flow rate.

Process Equipment and Plant Design
Tube side pressure drop in a 1-2 heat exchanger (for turbulent flow of fluids through the tubes) is about __________ times, that in a 1-1 heat exchanger having the same size & number of tubes and operated at the same liquid flow rate.

2

1/2

8

4

2

1/2

8

4

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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

6 mm

10 mm

5 mm

8 mm

6 mm

10 mm

5 mm

8 mm

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

45.5

5.5

12.5

30.5

45.5

5.5

12.5

30.5

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Process Equipment and Plant Design
Lessing ring is formed by the addition of a partition across the centre of a raschig ring, which results in an area increase of about __________ percent.

20

35

5

55

20

35

5

55

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Process Equipment and Plant Design
The LMTD correction factor (FT) is applied in __________ heat exchangers.

1-1 cocurrent

All multipass

Double pipe

All of these

1-1 cocurrent

All multipass

Double pipe

All of these

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Process Equipment and Plant Design
In a shell and tube heat exchanger, tube side __________ of the mass velocity.

Heat transfer co-efficient is proportional to 0.8th power

Neither A nor B

Both A & B

Pressure drop is proportional to the square

Heat transfer co-efficient is proportional to 0.8th power

Neither A nor B

Both A & B

Pressure drop is proportional to the square

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Process Equipment and Plant Design

Process Equipment and Plant Design Tube side pressure drop in a 1-2 heat exchanger (for turbulent flow of fluids through the tubes) is about __________ times, that in a 1-1 heat exchanger having the same size & number of tubes and operated at the same liquid flow rate.

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

Process Equipment and Plant Design Lessing ring is formed by the addition of a partition across the centre of a raschig ring, which results in an area increase of about __________ percent.

Process Equipment and Plant Design The LMTD correction factor (FT) is applied in __________ heat exchangers.

Process Equipment and Plant Design In a shell and tube heat exchanger, tube side __________ of the mass velocity.

Process Equipment and Plant Design
Tube side pressure drop in a 1-2 heat exchanger (for turbulent flow of fluids through the tubes) is about __________ times, that in a 1-1 heat exchanger having the same size & number of tubes and operated at the same liquid flow rate.

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

Process Equipment and Plant Design
Lessing ring is formed by the addition of a partition across the centre of a raschig ring, which results in an area increase of about __________ percent.

Process Equipment and Plant Design
The LMTD correction factor (FT) is applied in __________ heat exchangers.

Process Equipment and Plant Design
In a shell and tube heat exchanger, tube side __________ of the mass velocity.