Process Equipment and Plant Design MCQs

Question 1

In shell and tube heat exchangers, straight tie rods are used to

Accepted Answer

Hold baffle in space

Answer

Fix the tubes in position

Answer

Account for thermal strain

Answer

None of these

Question 2

Bubble cap plate column is

Accepted Answer

A finite stage contactor

Answer

Used only for distillation, not for absorption

Answer

A differential stage contactor

Answer

A continuous contactor

Question 3

A rivetted joint does not fail by __________ of rivets.

Accepted Answer

None of these

Answer

Tearing

Answer

Shearing

Answer

Tearing of the plate across a row

Question 4

The LMTD correction factor (F T ) is defined as the

Accepted Answer

Ratio of true temperature difference to the LMTD

Answer

Ratio of LMTD to the true temperature difference

Answer

Differenced of true temperature difference and the LMTD

Answer

Geometric mean of the true temperature difference and the LMTD

Question 5

The slope of the feed line in distillation opeartion is given by (where, q = fraction of the feed stream that is liquid.)

Accepted Answer

$$ - \frac{{	ext{q}}}{{1 - {	ext{q}}}}$$

Answer

$$ - {	ext{q}}$$

Answer

$$ - \frac{{	ext{q}}}{{{	ext{q}} - 1}}$$

Answer

None of these

Question 6

Tube height in a calendria type evaporator is normally less than __________ metres.

Accepted Answer

2

Answer

1

Answer

3.5

Answer

5.5

Question 7

Practical dividing line between a ductile and brittle materials is suggested, when the ultimate elongation is about 5%. Generally, larger the knuckle radius, stronger is the corner torus section of a head. The knuckle radius provided should be less than __________ of the head.

Accepted Answer

Either A or B, whichever is larger

Answer

6% of I.D.

Answer

3 times the thickness

Answer

Either A or B, whichever is smaller

Question 8

__________ shaped roof is most commonly used for cylindrical tanks.

Accepted Answer

Cone

Answer

Dome

Answer

Umbrella

Answer

Flat

Question 9

Holes of a sieve tray are arranged in triangular pitch of __________ times the hole diameter.

Accepted Answer

2.5 to 5

Answer

1.5 to 2

Answer

5 to 10

Answer

10 to 15