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Question (1)

QN006612

Which method is used to separate husk from grains with the help of wind?

(A) Sieving
(B) Winnowing
(C) Filtration
(D) Sedimentation

Correct Answer: B

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Question (2)

QN006613

Winnowing is mainly based on difference in:

(A) Solubility
(B) Boiling point
(C) Weight of particles
(D) Colour

Correct Answer: C

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Question (3)

QN006614

Which method is suitable for separating stones from rice?

(A) Handpicking
(B) Sublimation
(C) Distillation
(D) Filtration

Correct Answer: A

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Question (4)

QN006615

Handpicking is useful when the impurities are:

(A) Very small in amount and easily visible
(B) Dissolved completely
(C) Heavier liquids
(D) Magnetic

Correct Answer: A

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Question (5)

QN006616

Which method separates particles based on size using a mesh?

(A) Filtration
(B) Sieving
(C) Evaporation
(D) Distillation

Correct Answer: B

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Question (6)

QN006617

Flour is generally separated from bran using:

(A) Sedimentation
(B) Filtration
(C) Sieving
(D) Winnowing

Correct Answer: C

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Question (7)

QN006618

Which method is commonly used at construction sites to separate pebbles from sand?

(A) Sublimation
(B) Sieving
(C) Crystallization
(D) Distillation

Correct Answer: B

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Question (8)

QN006619

In sedimentation, heavier insoluble particles:

(A) Float on surface
(B) Dissolve completely
(C) Settle at the bottom
(D) Evaporate

Correct Answer: C

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Question (9)

QN006620

The clear liquid obtained after sedimentation is called:

(A) Residue
(B) Supernatant
(C) Filtrate
(D) Distillate

Correct Answer: B

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Question (10)

QN006621

The process of pouring out the clear liquid after sedimentation is called:

(A) Filtration
(B) Distillation
(C) Decantation
(D) Sublimation

Correct Answer: C

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Question (1)

Which method is used to separate husk from grains with the help of wind?

Explanation:

Link:

Question (2)

Winnowing is mainly based on difference in:

Explanation:

Link:

Question (3)

Which method is suitable for separating stones from rice?

Explanation:

Link:

Question (4)

Handpicking is useful when the impurities are:

Explanation:

Link:

Question (5)

Which method separates particles based on size using a mesh?

Explanation:

Link:

Question (6)

Flour is generally separated from bran using:

Explanation:

Link:

Question (7)

Which method is commonly used at construction sites to separate pebbles from sand?

Explanation:

Link:

Question (8)

In sedimentation, heavier insoluble particles:

Explanation:

Link:

Question (9)

The clear liquid obtained after sedimentation is called:

Explanation:

Link:

Question (10)

The process of pouring out the clear liquid after sedimentation is called:

Explanation:

Link:

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