Process Equipment and Plant Design Mcqs

Our collections of Multiple choice questions and answers focuses on study of Process Equipment and Plant Design in Chemical Engineering. These questions are chosen from a collection of most authoritative and best reference books on Chemical Engineering. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, MDCAT, Teaching jobs Tests and Chemical industry job interviews. One should practice our Mcqs to assimilate knowledge on Process Equipment and Plant Design comprehensively.

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31.
Factor of safety (i.e., overdesign factor) in heat transfer equipments is about _____________ percent more than the actual/theoretical design factor?

5-10

15-20

30-35

35-40

Answer Discus (0)

32.
Wind load consideration in the design of a support can be neglected, when the vessel is___________________?

Tall (say 30 metres), but is full of liquid

Tall but empty

Short (< 2 m) and housed indoor

None of these

Answer Discus (0)

33.
Heat transfer co-efficient for a horizontal condenser as compared to a vertical condenser operating under similar conditions is_______________?

Same

Less

About 3 times

About 0.33 times

Answer Discus (0)

34.
For identical operating conditions, the pressure drop over _______________ tray is the highest out of the following?

Sieve

Valve

Counter flow

Bubble cap

Answer Discus (0)

35.
In a shell and tube heat exchanger having square pitch, the shell side equivalent diameter is given by (where, P = pitch, d = outside diameter of the tube) ?

4(P2 – πd2/4)/πd

(P2 – rd2/4)/rd

4P2/πd

πd/4P2

Answer Discus (0)

36.
In the allocated cap area, bubble caps are generally arranged on equilateral triangular pitch. Number of caps fixed on a plate is with a __________________?

Clearance of 25-75 mm

Cap pitch of 1.3-2 times the cap diameter

Either A. or B.

Neither A. nor B.

Answer Discus (0)

37.
Baffle spacing is generally _________________ the I.D. of the shell ?

More than

Not greater than

Not less than one fifth of

Both B. and C.

Answer Discus (0)

38.
The dust collection efficiency of a cyclone separator_________________?

Decreases with increase in gas flow rate

Is inversely proportional to the mass of the dust particle

Is directly proportional to the radius of the dust particle path

None of these

Answer Discus (0)

39.
Log mean temperature difference in case of multi-pass shell and tube heat exchanger is always_________________?

Less than arithmetic mean value

More than arithmetic mean value

More than geometric mean value

Both B. & C.

Answer Discus (0)

40.
In distillation columns, bubble caps are held in place over trays by ________________?

Rivets

A hold down bar

Bolts

Both B. and C.

Answer Discus (0)

41.
The necessary wall thickness for a metallic storage vessel is a function of the ___________________?

Ultimate tensile strength (or yield point) of the material and operating temperature

Operating pressure and welding/joint efficiency

Diameter of the vessel

All A., B. and C.

Answer Discus (0)

43.
The length of straight rectangular weir used on cross-flow trays is generally ________________ the column diameter ?

0.6-0.8 times

Equal to

Twice

2 ft irrespective of (for column > 3 ft diameter)

Answer Discus (0)

44.
In a shell and tube heat exchanger, the clearance of the tube is generally___________________?

Not less than one-fourth of the tube diameter or 3/16″

More than the tube diameter

Equal to the tube diameter

More in case of triangular pitch as compared to the square pitch tube layout

Answer Discus (0)

45.
Frame thickness in the plate and frame filter press is normally in the range of ______________ inches?

0.25 to 4

0.25 to 8

1 to 5

1 to 12

Answer Discus (0)

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