Process Equipment and Plant Design MCQs

Question 1

Which of the following factors determine the amount of entrainment in a distillation column?

Accepted Answer

All of the above

Answer

Plate spacing

Answer

Depth of liquid above the bubble cap slots

Answer

Vapour velocity in the volume between the plates

Question 2

Minimum tube pitch recommended for shell and tube heat exchangers is about __________ times the outside diameter of the tube.

Accepted Answer

1.25

Answer

1.75

Answer

2.5

Answer

3.5

Question 3

Back-trapping in a distillation column results due to

Accepted Answer

Excessive liquid gradient over the tray

Answer

Low gas velocity

Answer

High gas velocity

Answer

Low reflux ratio

Question 4

The ratio of down take area to cross-sectional area of the tube, for calendria type evaporator ranges from

Accepted Answer

0.5 to 1

Answer

1 to 1.5

Answer

1.5 to 2

Answer

2 to 2.5

Question 5

Power required for agitation depends upon the

Accepted Answer

All of the above

Answer

Height & properties of the liquid

Answer

Agitator type & speed of agitation

Answer

Size of agitator & the tank

Question 6

Liquid/petroleum fuel storage tanks are built underground (as in case of petrol pumps), when the storage capacity is less than __________ kilolitres.

Accepted Answer

45

Answer

20

Answer

30

Answer

85

Question 7

The value of fouling factor depends upon the

Accepted Answer

All of the above

Answer

Characteristic of process fluid

Answer

Velocity of process fluid containing suspended solids

Answer

Suspended solids in the fluid

Question 8

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

Accepted Answer

Bubble cap

Answer

Sieve

Answer

Valve

Answer

Counterflow

Question 9

Vertical storage vessels are never supported by __________ support.

Accepted Answer

Saddle

Answer

Bracket

Answer

Skirt

Answer

Lug