Process Equipment and Plant Design MCQ Questions and answers

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Q. Width and depth of grooves in the tube sheet holes normally are __________ inch respectively.

(A) 1/8 and 1/64
(B) 1/64 and 1/8
(C) 1/2 and 8
(D) 1/2 and 5

A

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Q. In most of the shell and tube heat exchangers, the tube pitch is generally __________ the tube diameter.

(A) Less than
(B) 1.25-1.50 times
(C) 2.5 times
(D) One-fourth of

A

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Q. Value of Peclet number = 0, is the representative of

(A) Laminar flow
(B) Complete back mixing
(C) Plug flow
(D) Eddy diffusivity = 0

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Q. Pick out the wrong statement pertaining to the design of a horizontal tube evaporator.

(A) It is unsuitable for concentrating those liquids, which form a scale or deposit salt
(B) It is suitable for process, in which the final product is a liquor instead of solid
(C) Its usual dimensions are: tube dia = 2-3 cms; evaporator body dia = 1-4 metres and evaporator height = 2.5-4 metres
(D) Liquor flows inside the tube, while the steam is outside submerging the tube

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Q. Pick out the wrong statement pertaining to the design of the bubble cap tray of a distillation column to give stable operation and even vapour distribution.

(A) The pressure drop due to the caps & slots and the static submergence should be as high as practicable for reasonable operation
(B) Tendency towards stable operation is increased by increasing the skirt clearance of the caps, lowering the rate of liquid flow per unit plate width or increasing the spacing between the caps
(C) The dimensionless ratio of liquid gradient to pressure drop head caused by the bubble cap assembly should be less than 0.4
(D) None of these

A

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Q. A certain pressure vessel manufacturer avoids doing reinforcements calculations for openings by always providing a reinforcing pad extending upto double the diameter of the opening and of the same material and thickness as that of the shell wall. If area compensation is accepted as a code guideline, his approach leads to safe design

(A) Only if the opening is on spherical vessel
(B) Only if the opening is on a vertical cylinderical vessel
(C) Only if the opening is on a horizontal cylinderical vessel
(D) Irrespective of the shape of the vessel

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Q. __________ head is the most economical for cylindrical vessels designed for operating at high pressure (> 15 atm.).

(A) Hemispherical
(B) Dished
(C) Ellipsoidal
(D) Conical

A

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Q. The ideal size of round bubble caps to be used in industrial distillation column having a diameter of 3-6 meters is __________ cms.

(A) 5
(B) 7.5
(C) 15
(D) 50

A

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Q. In common bubble cap distillation column design practice, riser area is approximately equal to (where, A_a = Annular passage area, and S_a = Slot area)

(A) A_a = S_a
(B) 1.2 A_a = 1.2 S_a
(C) S_a = 1.5 A_a
(D) A_a = 1.5 S_a

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Q. In the design of a shell and tube heat exchanger, the corrosion allowance

(A) Need not be provided for non-pressure parts like tie rods, spacers, baffles, supports etc
(B) For carbon steel and cast iron pressure parts is 1.5 mm (except for tubes) and for severe conditions it is 3 mm
(C) For internal cover and tube sheet is provided on both the sides
(D) All of the above

Process Equipment and Plant Design MCQs with answers Page - 1

Q. Width and depth of grooves in the tube sheet holes normally are __________ inch respectively.

Q. In most of the shell and tube heat exchangers, the tube pitch is generally __________ the tube diameter.

Q. Value of Peclet number = 0, is the representative of

Q. Pick out the wrong statement pertaining to the design of a horizontal tube evaporator.

Q. Pick out the wrong statement pertaining to the design of the bubble cap tray of a distillation column to give stable operation and even vapour distribution.

Q. __________ head is the most economical for cylindrical vessels designed for operating at high pressure (> 15 atm.).

Q. The ideal size of round bubble caps to be used in industrial distillation column having a diameter of 3-6 meters is __________ cms.

Q. In common bubble cap distillation column design practice, riser area is approximately equal to (where, A_a = Annular passage area, and S_a = Slot area)

Q. In the design of a shell and tube heat exchanger, the corrosion allowance

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Process Equipment and Plant Design MCQs with answers Page - 1

Q. Width and depth of grooves in the tube sheet holes normally are __________ inch respectively.

Q. In most of the shell and tube heat exchangers, the tube pitch is generally __________ the tube diameter.

Q. Value of Peclet number = 0, is the representative of

Q. Pick out the wrong statement pertaining to the design of a horizontal tube evaporator.

Q. Pick out the wrong statement pertaining to the design of the bubble cap tray of a distillation column to give stable operation and even vapour distribution.

Q. __________ head is the most economical for cylindrical vessels designed for operating at high pressure (> 15 atm.).

Q. The ideal size of round bubble caps to be used in industrial distillation column having a diameter of 3-6 meters is __________ cms.

Q. In common bubble cap distillation column design practice, riser area is approximately equal to (where, Aa = Annular passage area, and Sa = Slot area)

Q. In the design of a shell and tube heat exchanger, the corrosion allowance

Add MCQ in this Category

Browse Categories

Q. In common bubble cap distillation column design practice, riser area is approximately equal to (where, A_a = Annular passage area, and S_a = Slot area)