Process Equipment and Plant Design MCQs

withstand higher pressure for a given metallic shell thickness.

be fabricated very easily.

be designed without wind load considerations.

be supported very easily.

are manufactured on 2:1 ratio of major to minor axis and is recommended to be used for pressure vessels operating above a pressure of 1.5 MN/m2 .

resist half the pressure rating compared to hemi spherical head provided on the cylindrical shell of the same thickness and diameter.

are approximately as strong as seamless cylindrical shell having the corresponding I.D and O.D.

all (a), (b) and (c)

0.1-0.5

1-May

Oct-20

80-100

1.5 to 2

2.5 to 5

5 to 10

10 to 15

1-1 cocurrent

double pipe

all multipass

all (involving liquid/liquid heat transfer)

maldistribution of gas.

back trapping.

gas blowing beneath cap skit.

all (a), (b) and (c).

relative volatility is close to one (e.g., separation of close boiling isomers).

feed is not at its bubble point.

number of equilibrium stages in only stripping section is to be calculated.

number of equilibrium stages required is likely to be very small.

0.01

0.3

0.75

0.95

called tube pitch.

called tube clearance.

always less than the diameter of the tube.

none of these.

small diameter tanks.

large diameter tanks.

small diameter tall tanks.

all tanks irrespective of their heights and diameters.