Correct use of ‘factor of safety’ is very important in equipment design. It is defined as the ratio of the___________________?

Byadmin March 2, 2019August 23, 2021

Correct use of ‘factor of safety’ is very important in equipment design. It is defined as the ratio of the___________________?

A. Ultimate stress to breaking stress
B. Ultimate stress to working stress
C. Working stress to ultimate stress
D. None of these

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?

The ideal size of round bubble caps to be used in industrial distillation column having a diameter of 3-6 metres is ________________ cms?

A. 5
B. 15
C. 7.5
D. 50

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

Low pressure steam (with saturation temperature between 105 to 120°C) is usually used in the vacuum evaporators, which normally employ a vacuum of about _______________ mm Hg (referred to a 760 mm mercury barometer)?

Low pressure steam (with saturation temperature between 105 to 120°C) is usually used in the vacuum evaporators, which normally employ a vacuum of about _______________ mm Hg (referred to a 760 mm mercury barometer)?

A. 250
B. 450
C. 650
D. 750

Read More Low pressure steam (with saturation temperature between 105 to 120°C) is usually used in the vacuum evaporators, which normally employ a vacuum of about _______________ mm Hg (referred to a 760 mm mercury barometer)?
Process Equipment and Plant Design

In case of a shell and tube heat exchanger, the effect of L/D on inside film heat transfer coefficient (hi) vanishes after a Reynold number of_____________?

In case of a shell and tube heat exchanger, the effect of L/D on inside film heat transfer coefficient (hi) vanishes after a Reynold number of_____________?

A. 1000
B. 3000
C. 5000
D. 10000

Read More In case of a shell and tube heat exchanger, the effect of L/D on inside film heat transfer coefficient (hi) vanishes after a Reynold number of_____________?
Process Equipment and Plant Design

What is the slope of the operating line in the stripping section of a distillation column ?

What is the slope of the operating line in the stripg section of a distillation column ?

A. 0
B. ∞
C. > 1
D. < 1

Read More What is the slope of the operating line in the stripping section of a distillation column ?
Process Equipment and Plant Design

With increase in gas flow rate to fabric surface area ratio (Nm3/hr/m2 fabric surface area), the size & the cost of a bag filter___________________?

With increase in gas flow rate to fabric surface area ratio (Nm3/hr/m2 fabric surface area), the size & the cost of a bag filter___________________?

A. Increases
B. Decreases
C. Remain unaffected
D. None of these

Read More With increase in gas flow rate to fabric surface area ratio (Nm3/hr/m2 fabric surface area), the size & the cost of a bag filter___________________?
Process Equipment and Plant Design

Baffles are provided in a shell and tube heat exchanger to increase the turbulence and velocity of the shell side fluid. Which of the following shaped baffles does not fall in the category of transverse baffle ?

Baffles are provided in a shell and tube heat exchanger to increase the turbulence and velocity of the shell side fluid. Which of the following shaped baffles does not fall in the category of transverse baffle ?

A. Segmental baffle
B. Flat plate extending across the wall
C. Disk type baffle
D. Helical type baffle

Read More Baffles are provided in a shell and tube heat exchanger to increase the turbulence and velocity of the shell side fluid. Which of the following shaped baffles does not fall in the category of transverse baffle ?

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