Mechanical Operations MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Mechanical Operations, a fundamental topic in the field of Basic Chemical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Mechanical Operations MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Mechanical Operations mcq questions that explore various aspects of Mechanical Operations problems. Each MCQ is crafted to challenge your understanding of Mechanical Operations principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Basic Chemical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Mechanical Operations MCQs are your pathway to success in mastering this essential Basic Chemical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Mechanical Operations. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Mechanical Operations knowledge to the test? Let's get started with our carefully curated MCQs!

Mechanical Operations MCQs | Page 44 of 46

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Q431.
Carbon black is pulverised in a

a.

hammer crusher

b.

ball mill

c.

roll crusher

d.

gyratory crusher

Discuss
Answer: (b).ball mill
Q432.
The most efficient equipment for the removal of sub-micronic dust particles from blast furnace gas is the

a.

venturi atomiser

b.

gravity settling chamber

c.

electro-static precipitator

d.

cyclone separator

Discuss
Answer: (c).electro-static precipitator
Q433.
The filtrate flow rate in constant pressure filtration

a.

continuously increases.

b.

continuously decreases.

c.

remains constant throughout.

d.

may increase or decrease ; depends on the pressure.

Discuss
Answer: (b).continuously decreases.
Q434.
Theoretical capacity of crushing rolls in tons/hr is given by (where, V = peripherial velocity, m/sec. W = width of rolls, m Dr = distance between rolls ρ = density of material to be crushed, kg/m³ here, V =πN.D where, N = speed of the rolls in rotation per second (rps) D = diameter of rolls, m)

a.

3.6 V.W.Dr.ρ

b.

3.6 V.W. ρ

c.

3.6 W.Dr.ρ

d.

3.6 V.W.Dr/ρ

Discuss
Answer: (a).3.6 V.W.Dr.ρ
Q435.
Vibrating screens are used for handling large tonnages of materials. The vibrating motion is imparted to the screening surface by means of

a.

electromagnets

b.

cams or eccentric shafts

c.

unblanced fly wheels

d.

either (a), (b) or (c).

Discuss
Answer: (d).either (a), (b) or (c).
Q436.
The inlet pressure in a constant rate filtration

a.

increases continuously

b.

decreases gradually

c.

remains constant

d.

none of these

Discuss
Answer: (a).increases continuously
Q437.
Size reduction of moulding powders, waxes, resins & gums are done in a __________ mill.

a.

cage

b.

hammer

c.

both (a) & (b)

d.

neither (a) nor (b)

Discuss
Answer: (c).both (a) & (b)
Q438.
Particle size range in which dust catcher (gravity settling chamber) works most effectively and efficiently is __________ microns.

a.

< 5

b.

10 to 25

c.

< 74

d.

> 1000

Discuss
Answer: (c).< 74
Q439.
__________ centrifuge is the most suitable for separation of non-friable crystals.

a.

Tubular bowl

b.

Disc-bowl

c.

Perforated horizontal basket continuous

d.

Suspended batch basket

Discuss
Answer: (c).Perforated horizontal basket continuous
Q440.
For benefication of iron ore, the most commonly used method is

a.

flocculation.

b.

froth floatation.

c.

jigging & tabling.

d.

none of these.

Discuss
Answer: (c).jigging & tabling.
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