Process Equipment and Plant Design MCQs

Question 1

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

Accepted Answer

> 1

Answer

0

Answer

$$\infty $$

Answer

< 1

Question 2

To avoid the tearing off the plate of an edge, the margin (i.e., the minimum distance from the centre of the rivet hole to the nearest edge of the plate) should be equal to

Accepted Answer

1.5 d

Answer

0.5 d

Answer

D

Answer

2.5 d

Question 3

In a distillation column, minimum clearance to be maintained betweeen the overflow weir and the last row of the bubble caps is __________ cms.

Accepted Answer

7.5

Answer

2.5

Answer

15

Answer

20

Question 4

__________ strain is measured using a 'strain rosetter'.

Accepted Answer

Linear

Answer

Volumetric

Answer

Shear

Answer

None of these

Question 5

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

Accepted Answer

15-20

Answer

5-10

Answer

30-35

Answer

35-40

Question 6

Normally, the ratio of the total riser area to the tower cross sectional area (for bubble cap towers of diameter more than 3 ft) is around

Accepted Answer

0.1-0.2

Answer

0.4-0.6

Answer

0.35-0.75

Answer

0.55-0.85

Question 7

For pipe flows, head is proportional to __________ at constant capacity (where D = pipe diameter).

Accepted Answer

$$\frac{1}{{{{	ext{D}}^5}}}$$

Answer

$$\frac{1}{{	ext{D}}}$$

Answer

$$\frac{1}{{{{	ext{D}}^2}}}$$

Answer

$${{	ext{D}}^2}$$

Question 8

Triangular pitch tube layout as compared to square pitch in a shell and tube heat exchanger

Accepted Answer

Permits the use of more tubes in a given shell diameter

Answer

Permits the use of less tubes in a given shell diameter

Answer

Facilitates comparatively easier external cleaning because of large clearance

Answer

Both B and C

Question 9

Equivalent diameter for heat transfer calculation for a duct of square cross-section having each side as 'd' will be

Accepted Answer

d

Answer

$$\sqrt {	ext{d}} $$

Answer

$$\sqrt {2\pi {	ext{d}}} $$

Answer

$$\sqrt {2{	ext{d}}} $$