Process Equipment And Plant Design MCQ Questions & Answers

Process Equipment And Plant Design MCQ Questions & Answers | Chemical Engineering

Learn Process Equipment And Plant Design MCQ questions & answers are available for a Chemical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Process Equipment And Plant Design MCQ question is the important chapter for a Chemical Engineering and GATE students. Page-8 section-4

Tubes are fixed to the tube sheet (a thick circular metallic plate) by the method of tube rolling and brazing (non-removable) or ferrule connection (removable). Thickness of the tube, sheet is normally __________ the outside diameter of the tube but in no case it should be less than 22 mm $$\left( {{{\frac{7}{8}}^{''}}} \right).$$

A) Half B) Three fourth C) Equal to D) 1.5 times

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Answer & Solution

Answer: Option C

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Two iron pipes of the same nominal diameter but different schedule numbers will have the same

A) Inside diameter B) Outside diameter C) Wall thickness D) None of these

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Answer & Solution

Answer: Option A

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$$\frac{{{{\text{L}}_{\text{e}}}}}{{\text{D}}}$$ for fully open gate valves would be

A) Much more than that for fully open globe valves B) Much less (say 2% than that for fully open globe valves) C) Around 7 D) Both B and C

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Answer & Solution

Answer: Option D

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Pick out the wrong statement about the design of seive plate column and the bubble cap column.

A) The downcomer design and the residence time in the downcomer is almost same for seive plate and bubble cap columns B) Weir length for a bubble cap plate is the same as that for the seive plate C) Weir height for a bubble cap plate column is the same as that for a seive plate column D) Weir height in case of a bubble cap plate ranges from 50 to 150 mm and is higher than the seive plate

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Answer & Solution

Answer: Option C

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__________ tray arrangement is recommended for distillation column having diameter upto 4 ft.

A) Radial flow B) Cross flow C) Split flow D) Cascade

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Answer & Solution

Answer: Option B

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Hole diameter of the seive trays in the distillation column ranges from __________ mm.

A) 1 to 3 B) 4 to 8 C) 3 to 12.5 D) 12.5 to 18.5

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Answer: Option C

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With increase in the reflux ratio for a fixed production from a continuous binary distillation column, the __________ decreases.

A) Fixed charges initially B) Running cost of cooling water for condenser C) Vapour & liquid load both D) Running cost of steam for reboiler

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Answer & Solution

Answer: Option A

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In a shell and tube heat exchanger for a given heat transfer surface area, smaller diameter tubes are favoured as compared to larger diameter ones ; because the smaller diameter tubes

A) Are easier to clean B) Are less prone to fouling C) Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less D) None of these

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Answer & Solution

Answer: Option C

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Liquid gradient over a tray can be minimised by

A) Providing a higher skirt clearance or a higher weir B) Decreasing the number of rows of caps through which the liquid flows or by decreasing the velocity of liquid flow past the caps or by reducing the distance along the tray through which the liquid must flow C) Using split flow, radial flow or cascade flow for column diameter large than 4 ft D) All of the above

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Answer & Solution

Answer: Option D

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Needle valves are generally not used for

A) Very large diameter pipes B) High pressure throttling service C) Very accurate flow control D) Smaller sizes of pipe

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Answer & Solution

Answer: Option A

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