Synthetic Fibres and Plastics Test

Result

Synthetic Fibres and Plastics Test - 24

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Weekly Quiz Competition

Question 1
1 / -0

What are biodegradable compounds?

A
Compounds which can not be decomposed

B
Compounds which can be decomposed by man-made processes

C
Compounds which can be decomposed by natural processes

D
All of the above

Solution

Biodegradable compounds are compounds that get decomposed through natural processes such as the action of bacteria. Examples of biodegradable substances are peels of fruits, vegetables, paper.
Question 2
1 / -0

Plastic can be used as :

A
insulator

B
conductor

C
Both A and B

D
None of above

Solution

Most plastics are both thermal and electrical insulators, meaning they show high resistance to electrical current and are poor conductors of heat.
Thermosetting polymer such as bakelite are used as electrical insulators.
Question 3
1 / -0

Cotton cloth requires _______ to decompose.

A
more than 15 years

B
10-15 years

C
100 years

D
2-5 months

Solution

Cotton is a natural fibre. It consists of natural components. Cotton takes 2 to 5 months to decompose.
Question 4
1 / -0

Examples of non-biodegradable is/are :

A
Tires

B
Plastic

C
Electronic components

D
All of these

Solution

Non-biodegradable waste is a waste that does not break down into natural components and exists in the environment for a long time. Examples would be tires, plastics, electronic components, metals, etc
Option $$D$$ is correct.
Question 5
1 / -0

Which type of fiber is flax?

A
Leaf fiber

B
Bast fiber

C
Animal fiber

D
Fruit fiber

Solution

Flax is a bast fiber also known as skin fiber. These fibers are collected from skin or bast surrounding the stem of the plant source. They have higher tensile strength than other fibers. These are used for durable yarns, fabric, packaging etc.
Question 6
1 / -0

_____ waste products can also be called green waste, or organic waste.

A
Biodegradable

B
Non-Biodegradable

C
synthetic

D
None of these

Solution

Biodegradable wastes are those that can be broken down by the action of micro-organisms and other environmental factors into carbon dioxide or other simple organic molecules. Biodegradable waste products can also be called green waste or organic waste because most of these are plant or animals based.
Question 7
1 / -0

Plastic can be used for:

A
polythene bags

B
food packaging

C
electrical appliances

D
All of the above

Solution

Plastic in today's world plays a very important role in day to day life. They are most commonly used as polythene bags (carry bags). Also, they are used in food industry for packaging as wrappers, packs for milk etc. Plastics can be good thermal insulator. Hence, covering electrical wires/appliances with plastic helps in avoiding electrical shocks.
Question 8
1 / -0

Which of the following is an animal fiber?

A
Silk

B
Wool

C
Alpaca

D
All of the above

Solution

Animal fibers are generally made up of proteins.
Examples include silk, wool, angora, mohair, and alpaca. Silk fiber collected from dried saliva of bugs or insects during the preparation of cocoons.
Avian fibers from birds, for example, feathers and feather fiber.
Question 9
1 / -0

______ is an example of biodegradable material.

A
Aluminium

B
Plastic

C
Cotton

D
None of these

Solution

Cotton is a biodegradable material. Other biodegradable materials are paper, wood, peels of vegetable and fruits, leftover foodstuff, etc. Non-biodegradable materials are plastics, aluminium and other metals.
Question 10
1 / -0

_______ provides good heat and sound insulation.

A
Propylene

B
Styrofoam

C
Polythene

D
Acrylic

Solution

Polystyrene foam is also known as Styrofoam is brittle in tension, lightweight, with good heat and sound insulation. It is available in blocks and used for product modeling.

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Re-Attempt Weekly Quiz Competition

Synthetic Fibres and Plastics Test - 24

Result

Synthetic Fibres and Plastics Test - 24

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SHARING IS CARING

Question 1

Compounds which can not be decomposed

Compounds which can be decomposed by man-made processes

Compounds which can be decomposed by natural processes

All of the above

Solution

Question 2

insulator

conductor

Both A and B

None of above

Solution

Question 3

more than 15 years

10-15 years

100 years

2-5 months

Solution

Question 4

Tires

Plastic

Electronic components

All of these

Solution

Question 5

Leaf fiber

Bast fiber

Animal fiber

Fruit fiber

Solution

Question 6

Biodegradable

Non-Biodegradable

synthetic

None of these

Solution

Question 7

polythene bags

food packaging

electrical appliances

All of the above

Solution

Question 8

Silk

Wool

Alpaca

All of the above

Solution

Question 9

Aluminium

Plastic

Cotton

None of these

Solution

Question 10

Propylene

Styrofoam

Polythene

Acrylic

Solution

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