Sedimentation and Centrifuge Techniques MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Sedimentation and Centrifuge Techniques, a fundamental topic in the field of Food Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Sedimentation and Centrifuge Techniques 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 Sedimentation and Centrifuge Techniques mcq questions that explore various aspects of Sedimentation and Centrifuge Techniques problems. Each MCQ is crafted to challenge your understanding of Sedimentation and Centrifuge Techniques principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Food Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Sedimentation and Centrifuge Techniques MCQs are your pathway to success in mastering this essential Food Engineering topic.

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Sedimentation and Centrifuge Techniques MCQs | Page 5 of 8

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Q41.
Statement 1: Where Pg is power for a gassed system and Po is power for an ungassed system, Pg/Po is _____
Statement 2: Na stands for _____

a.

< 1, aeration number

b.

> 1, aeration number

c.

< 1, consistency index

d.

> 1, consistency index

Discuss
Answer: (a).< 1, aeration number
Q42.
Statement 1: Flat blade/curve blade/arrow head/vaned disc turbines are generally used for gas-liquid mixing.
Statement 2: Helical screw/ribbon mixer/gate anchor are generally used for solid-solid mixing.

a.

True, False

b.

True, True

c.

False, False

d.

False, True

Discuss
Answer: (b).True, True
Q43.
Which of the following is true with respect to Carbonation?

a.

Gas-liquid mixing

b.

Helps improve storage life

c.

Increased pressure

d.

All of the mentioned

Discuss
Answer: (d).All of the mentioned
Q44.
With respect to dipping oil emulsions, which of the following is true?

a.

Used for easy dehydration of food

b.

Gives a thin layer of coating on the fruit berries

c.

Dipping oil made from an emulsion by mixing of fatty esters with some amount of aqueous potassium carbonate solutions by high speed impellers

d.

All of the mentioned

Discuss
Answer: (d).All of the mentioned
Q45.
Which of the following is an advantage of size reduction?

a.

Enhanced heat/mass transfer

b.

Intimate contact with certain food items

c.

Enhanced heat/mass transfer & intimate contact with certain food items

d.

None of the mentioned

Discuss
Answer: (c).Enhanced heat/mass transfer & intimate contact with certain food items
Q46.
Statement 1: Dispersion of one immiscible liquid into another also involves size reduction.
Statement 2: Leaching requires size reduction.

a.

True, False

b.

True, True

c.

False, False

d.

False, True

Discuss
Answer: (b).True, True
Q47.
Which of the following is NOT true with respect to size reduction?

a.

Size reduction is an energy inefficient process as the energy required for grinding is very high

b.

Some of the energy liberated in the formation of new small surfaces is the grinding energy required by food material per unit surface area to form new surface areas and the rest is generally just heat

c.

The crushing efficiency is inversely proportional to the surface created

d.

None of the mentioned

Discuss
Answer: (c).The crushing efficiency is inversely proportional to the surface created
Q48.
Which of the following is NOT a method used for size reduction?

a.

Cutting

b.

Impact

c.

Burning

d.

Shear

Discuss
Answer: (c).Burning
Q49.
Statement 1: Grinding laws are based on the energy required for the creation of new surface area.
Statement 2: In general, all the laws are based on the principle that the energy required per unit area of the surface is directly proportional to the size of the particle.

a.

True, False

b.

True, True

c.

False, False

d.

False, True

Discuss
Answer: (b).True, True
Q50.
Statement 1: A hammer mill uses an impact to break particles.
Statement 2: A chakki uses compression to break particles.

a.

True, False

b.

True, True

c.

False, False

d.

False, True

Discuss
Answer: (a).True, False
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