Table of contents | |
Multiple Choice Questions (MCQs) | |
Fill in the Blanks | |
True or False | |
Match the Following |
Multiple Choice Questions (MCQs)
Q1: What is handpicking used for?
(a) Separating liquids from solids
(b) Separating small quantities of substances based on size and shape
(c) Separating grains from stalks
(d) Separating magnetic substances
Ans: (b) Separating small quantities of substances based on size and shape
Q2: Which method uses wind to separate lighter particles?
(a) Sieving
(b) Threshing
(c) Winnowing
(d) Filtration
Ans: (c) Winnowing
Q3: What is the purpose of evaporation in separation techniques?
(a) To separate insoluble solids from liquids
(b) To convert liquid into vapor and separate dissolved solids
(c) To remove larger particles from smaller ones
(d) To separate grains from husk
Ans: (b) To convert liquid into vapor and separate dissolved solids
Q4: Which of the following is NOT a method of separation?
(a) Churning
(b) Sedimentation
(c) Compression
(d) Filtration
Ans: (c) Compression
Q5: What does a thresher do?
(a) Separates liquids from solids
(b) Separates grains from stalks
(c) Separates husk from grains
(d) Separates small stones from wheat
Ans: (b) Separates grains from stalks
Fill in the Blanks
Q1: The process of separating grains from husk using wind is called __________.
Ans: winnowing
Q2: __________ is used to separate lighter components from heavier ones by agitating a mixture.
Ans: Churning
Q3: In __________, heavier particles settle down at the bottom of a liquid.
Ans: sedimentation
Q4: __________ involves using a filter to remove insoluble solids from liquids.
Ans: Filtration
Q5: To obtain salt from seawater, the process of __________ is used.
Ans: evaporation
True or False
Q1: Handpicking is a method used for separating large quantities of substances.
Ans: False
Q2: Sieving allows larger particles to pass through while trapping smaller particles.
Ans: False
Q3: Threshing is the process of separating grains from their stalks.
Ans: True
Q4: Magnetic separation can be used to separate non-magnetic substances from magnetic ones.
Ans: False
Q5: Winnowing is an effective method for separating heavier grains from lighter chaff.
Ans: True
Match the Following
Ans:
99 videos|261 docs|49 tests
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1. What are some common methods of separation used in everyday life? |
2. How does filtration work as a method of separation? |
3. When is evaporation used as a method of separation? |
4. Explain how distillation is used in everyday life for separation. |
5. How can a magnet be used as a method of separation in everyday life? |
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