The difficulty of liquid distribution in packed towers is accentuated, when the ratio of tower diameter to packing diameter is

Process Equipment and Plant Design
The difficulty of liquid distribution in packed towers is accentuated, when the ratio of tower diameter to packing diameter is

> 7 < 15

< 30

< 7

> 20 < 50

> 7 < 15

< 30

< 7

> 20 < 50

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Process Equipment and Plant Design
The ratio for the rate of washing to the final rate of filtration in a washing type of plate and frame filter is

1.25

0.75

0.5

0.25

1.25

0.75

0.5

0.25

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Process Equipment and Plant Design
With increase in the reflux ratio for a fixed production from a continuous binary distillation column, the __________ decreases.

Running cost of cooling water for condenser

Running cost of steam for reboiler

Vapour & liquid load both

Fixed charges initially

Running cost of cooling water for condenser

Running cost of steam for reboiler

Vapour & liquid load both

Fixed charges initially

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Process Equipment and Plant Design
The design stress, which is more than the damaging stress, is the least unit stress that will render a member unfit for service before the end of its normal life. The design stress factor or factor of safety indicates the margin between design stress and the __________ stress.

Working

None of these

Allowable

Damaging

Working

None of these

Allowable

Damaging

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Process Equipment and Plant Design
In case of design of a shell and tube heat exchanger,

Minimum tube sheet thickness (in which tubes are fixed) is equal to the O.D. of the tube upto 15 mm tube diameter; and for > 15 mm tube diameter, tube sheet thickness is smaller than tube diameter

O.D. of the tube is 6 to 40 mm while the tube lengths used are 0.5, 2.5, 3.0, 4.0, 5.0, 6 metres

Minimum cleaning lane of 6.5 mm is provided, when tubes are on a square pitch

All of these

Minimum tube sheet thickness (in which tubes are fixed) is equal to the O.D. of the tube upto 15 mm tube diameter; and for > 15 mm tube diameter, tube sheet thickness is smaller than tube diameter

O.D. of the tube is 6 to 40 mm while the tube lengths used are 0.5, 2.5, 3.0, 4.0, 5.0, 6 metres

Minimum cleaning lane of 6.5 mm is provided, when tubes are on a square pitch

All of these

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Process Equipment and Plant Design
Scale up problem in design based on the similarity concept takes into account __________ similarity.

Dynamic

Kinematic

All of these

Geometrical

Dynamic

Kinematic

All of these

Geometrical

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Process Equipment and Plant Design

Process Equipment and Plant Design The difficulty of liquid distribution in packed towers is accentuated, when the ratio of tower diameter to packing diameter is

Process Equipment and Plant Design The ratio for the rate of washing to the final rate of filtration in a washing type of plate and frame filter is

Process Equipment and Plant Design With increase in the reflux ratio for a fixed production from a continuous binary distillation column, the __________ decreases.

Process Equipment and Plant Design In case of design of a shell and tube heat exchanger,

Process Equipment and Plant Design Scale up problem in design based on the similarity concept takes into account __________ similarity.

Process Equipment and Plant Design
The difficulty of liquid distribution in packed towers is accentuated, when the ratio of tower diameter to packing diameter is

Process Equipment and Plant Design
The ratio for the rate of washing to the final rate of filtration in a washing type of plate and frame filter is

Process Equipment and Plant Design
With increase in the reflux ratio for a fixed production from a continuous binary distillation column, the __________ decreases.

Process Equipment and Plant Design
In case of design of a shell and tube heat exchanger,

Process Equipment and Plant Design
Scale up problem in design based on the similarity concept takes into account __________ similarity.