A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

Process Equipment and Plant Design
A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

80

45

60

95

80

45

60

95

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
In a shell and tube heat exchanger having square pitch, the shell side equivalent diameter is given by (where, P = pitch, d = outside diameter of the tube)

4(P² - πd²/4)/πd

Πd/4P²

(P² - πd²/4)/πd

4P²/πd

4(P² - πd²/4)/πd

Πd/4P²

(P² - πd²/4)/πd

4P²/πd

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
In the design of a shell and tube heat exchanger, the corrosion allowance

For carbon steel and cast iron pressure parts is 1.5 mm (except for tubes) and for severe conditions it is 3 mm

All of these

Need not be provided for non-pressure parts like tie rods, spacers, baffles, supports etc

For internal cover and tube sheet is provided on both the sides

For carbon steel and cast iron pressure parts is 1.5 mm (except for tubes) and for severe conditions it is 3 mm

All of these

Need not be provided for non-pressure parts like tie rods, spacers, baffles, supports etc

For internal cover and tube sheet is provided on both the sides

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
Pick out the wrong statement about the design of a sieve plate column.

Minimum recommended downcomer residence time for the disengagement of entrained vapour is the same for both foaming and non-foaming liquids, which is about 20 seconds

For segmental downcomers, the chord length is 60-80% of the column diameter. An initial value of downcomer area of 12% is taken in the design

Width of the calming section provided at the inlet and outlet sides of the plate is 75 mm for column diameter below 1.5 metres and 100 mm for larger diameter columns

An increased weir height improves the tray efficiency at the cost of high plate pressure drop; optimum wear height being 40-90 mm for column pressure above atmospheric and 6-12 mm for vacuum columns

Minimum recommended downcomer residence time for the disengagement of entrained vapour is the same for both foaming and non-foaming liquids, which is about 20 seconds

For segmental downcomers, the chord length is 60-80% of the column diameter. An initial value of downcomer area of 12% is taken in the design

Width of the calming section provided at the inlet and outlet sides of the plate is 75 mm for column diameter below 1.5 metres and 100 mm for larger diameter columns

An increased weir height improves the tray efficiency at the cost of high plate pressure drop; optimum wear height being 40-90 mm for column pressure above atmospheric and 6-12 mm for vacuum columns

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
Which of the following packing materials provides for maximum mass transfer?

Lessig rings

All of these

Cross-partition rings

Raschig rings

Lessig rings

All of these

Cross-partition rings

Raschig rings

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
High pressure fluid in a shell and tube heat exchanger should preferably be routed through the

Shell side for smaller total pressure drop

Shell side for large overall heat transfer co-efficient

Shell side, if the flow is counter-current and tube side if the flow is co-current

Tubes to avoid the expansion of high pressure shell construction

Shell side for smaller total pressure drop

Shell side for large overall heat transfer co-efficient

Shell side, if the flow is counter-current and tube side if the flow is co-current

Tubes to avoid the expansion of high pressure shell construction

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design

Process Equipment and Plant Design A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

Process Equipment and Plant Design In a shell and tube heat exchanger having square pitch, the shell side equivalent diameter is given by (where, P = pitch, d = outside diameter of the tube)

Process Equipment and Plant Design In the design of a shell and tube heat exchanger, the corrosion allowance

Process Equipment and Plant Design Pick out the wrong statement about the design of a sieve plate column.

Process Equipment and Plant Design Which of the following packing materials provides for maximum mass transfer?

Process Equipment and Plant Design High pressure fluid in a shell and tube heat exchanger should preferably be routed through the

Process Equipment and Plant Design
A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

Process Equipment and Plant Design
In a shell and tube heat exchanger having square pitch, the shell side equivalent diameter is given by (where, P = pitch, d = outside diameter of the tube)

Process Equipment and Plant Design
In the design of a shell and tube heat exchanger, the corrosion allowance

Process Equipment and Plant Design
Pick out the wrong statement about the design of a sieve plate column.

Process Equipment and Plant Design
Which of the following packing materials provides for maximum mass transfer?

Process Equipment and Plant Design
High pressure fluid in a shell and tube heat exchanger should preferably be routed through the