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Process Equipment and Plant Design

Process Equipment and Plant Design
The average velocity in the tubes of a 1-4 heat exchanger is __________ times that in 1-1 heat exchanger having the same size & number of tubes and operated at same liquid flow rate.

4
43832
2
43834

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Process Equipment and Plant Design
What is the value of 'q' for saturated liquid feed to a distillation column?

1
>1

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Process Equipment and Plant Design
Longitundinal stress induced in a thin walled cylindrical storage vessel is

PD/3t
PD/4t
PD/2t
PD/6t

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Process Equipment and Plant Design
The ideal size of round bubble caps to be used in industrial distillation column having a diameter of 3-6 metres is __________ cms.

15
50
7.5
5

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Process Equipment and Plant Design
To keep the power input constant for a stirred vessel operating under fully developed turbulent flow conditions (constant power number), if the impeller diameter is increased by 20%, the impeller speed should be decreased by a factor of

(1.2)3/5
(1.2)2/3
(1.2)5/3
(1.2)3/2

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Process Equipment and Plant Design
Safety valves are provided in chemical equipments to guard against excessive

Pressure/pressure fluctuation
Turbulence
Temperature
Noise

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