Synthetic Fibres and Plastics Test

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Synthetic Fibres and Plastics Test - 26

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following is a method to control water pollution?

A
Using water hyacinth to remove water pollutants

B
Recycling, Renovation, Recharge and Reuse (4R concept) of waste water

C
Both A and B

D
None of these

Solution

4R concept:- The wastewater consisting of domestic sewage industrial effluents, thermal and radioactive pollutants receive some sort of treatment before mixing into water bodies. Urban sewage and sludge etc may be recycled and reused to generate cheaper fuel, gas, and electricity.

Water hyacinth is extremely efficient in absorbing and concentrating dissolved nutrients from the water in which it lives.
Question 2
1 / -0

Common variety of polyester is_____

A
terylene

B
polymer

C
viscose

D
spinneret
Question 3
1 / -0

$$4R$$ concept is a measure to control ________.

A
air pollution

B
land pollution

C
water pollution

D
none of the above

Solution

Recycling, Renovation, Recharge, and Reuse (4R concept) of wastewater: The wastewater consisting of domestic sewage industrial effluents, thermal and radioactive pollutants receive some sort of treatment before mixing into water bodies. Urban sewage and sludge etc may be recycled and reused to generate cheaper fuel, gas, and electricity.
Question 4
1 / -0

Disposable plastic plates should not be used because:

A
They are made of materials with light weight.

B
They are made of toxic materials.

C
They are made of biodegradable materials.

D
They are made of non-biodegradable materials.

Solution

Disposable plastic plates should not be used because its waste is non-biodegradable and cannot be broken down into its base compounds by micro-organisms, air, moisture or soil in a reasonable amount of time. Non-biodegradable waste is an environmental concern, as it threatens to overwhelm landfills and create disposal problems.
Hence, correct option is $$D$$.
Question 5
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Which of the following best describes biodegradation?

A
A minor change in an organic molecule

B
Fragmentation of a complex organic molecule

C
Complete transformation of the organic molecule to mineral forms

D
All of the above

E
None of the above

Solution

A biodegradable substance is the one which gets decomposed by the natural processes. It can be also described by a minor change in the organic molecule, fragmentation or we can say breaking of the complex molecule or the complete transformation of the organic molecule to the mineral form.
Question 6
1 / -0

Which of the following is biodegradable?

A
Iron Nails

B
Plastic Mugs

C
Leather Belts

D
Silver Foils

Solution

Materials that decompose through natural processes are called biodegradable whereas those which do not decompose are non biodegradable.
Leather belts are biodegradable whereas silver foils, plastic mugs, and iron nails are non-biodegradable. It takes leather between 25 and 50 years to completely decompose. Leather that has been tanned can take significantly longer to decompose because of the chemicals used to tan it.
Question 7
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Plastic can __________ percolation of water into the soil and prevent replenishment of groundwater.

A
increase

B
reduce

C
stop

D
none of the above

Solution

Groundwater moves through soil and rocks, picking up pollution along the way. Plastic trash can affect groundwater quality, especially if you dispose of it improperly. It reduces the percolation of water as it comes in the way as water moves through the soil, even though it doesn't completely stop the seepage of water into the ground.
Question 8
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What is biodegradable?

A
Something that grows up

B
Natural decomposition by bacteria

C
Food for animals

D
Something that can melt

Solution

Biodegradabale materials gets decomposed with time by the natural decomposition by bacteria whereas those which do not decompose are non biodegradable.Examples of biodegradable materials are : fruits, vegetables, cow dung, plants etc.
Question 9
1 / -0

Which of the following are the advantages of plastic over metals?
1. Plastics are lighter.
2. Plastics are usually cheaper.
3. Plastics are inert to both acids and alkalis.

A
(1) and (2) only

B
(1) and (3) only

C
(2) and (3) only

D
(1) ,(2) and (3)

Solution

Plastics can provide the benefit of reduced weight. This is crucial for a manufacturer of aircraft parts, for instance decreased weight means increased fuel efficiency. This has lead to manufacturers transitioning from aluminum and steel to plastic and composites.

Plastics are usually cheaper because it is produced from byproducts of crude oil and natural gas refining mainly used to produce fuels.

Plastics are resistant to many chemical compounds like acids and alkalis. This opens up the options for use in solution tanks.
Question 10
1 / -0

Environmental pollution by plastics can be minimized by practising the 4R principle, which stands for:

A
Reduce, Reuse, Recycle and Remember.

B
Reduce, Reuse, Recycle and Recover.

C
Reduce, Reuse,, Rework and Recycle.

D
Reduce, Regenerate, Rework and Recycle.

Solution

The 4R principle is Reduce, Reuse, Recycle and Recover. This principle is environmentally friendly and would help reduce environmental pollution to an extent.

The principle directs people to
•Reduce the usage of resources. Use them only if necessary.

•Reuse the resources (or materials) if possible. For example, reusing cloth bags for shopping.

•Recycle materials if they are no longer usable.

•Recover materials; converting waste into usable resources.

Hence, the correct option is $$\text{B}$$.

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Re-Attempt Weekly Quiz Competition

Synthetic Fibres and Plastics Test - 26

Result

Synthetic Fibres and Plastics Test - 26

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SHARING IS CARING

Question 1

Using water hyacinth to remove water pollutants

Recycling, Renovation, Recharge and Reuse (4R concept) of waste water

Both A and B

None of these

Solution

Question 2

terylene

polymer

viscose

spinneret

Question 3

air pollution

land pollution

water pollution

none of the above

Solution

Question 4

They are made of materials with light weight.

They are made of toxic materials.

They are made of biodegradable materials.

They are made of non-biodegradable materials.

Solution

Question 5

A minor change in an organic molecule

Fragmentation of a complex organic molecule

Complete transformation of the organic molecule to mineral forms

All of the above

None of the above

Solution

Question 6

Iron Nails

Plastic Mugs

Leather Belts

Silver Foils

Solution

Question 7

increase

reduce

stop

none of the above

Solution

Question 8

Something that grows up

Natural decomposition by bacteria

Food for animals

Something that can melt

Solution

Question 9

(1) and (2) only

(1) and (3) only

(2) and (3) only

(1) ,(2) and (3)

Solution

Question 10

Reduce, Reuse, Recycle and Remember.

Reduce, Reuse, Recycle and Recover.

Reduce, Reuse,, Rework and Recycle.

Reduce, Regenerate, Rework and Recycle.

Solution

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