Fibres and Plastics Test

Result

Fibres and Plastics Test - 2

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Which of the following is not a characteristic of synthetic fibres?

A
Synthetic fibres are cheaper than natural fibres.

B
Synthetic fibres are less durable than natural fibres.

C
Synthetic fabrics get dried up in less time.

D
Synthetic fibres are readily available.

Solution

Fibres which are obtained from natural sources are called natural fibres. For example – cotton, silk, wool, etc.
Synthetic fibres are synthesized using chemicals or by chemical treatment of natural materials. Structurally they are long chains of some repeating molecules.
These are more durable and stronger as compared to natural fibres.
Hence, the statement in the option (2) is incorrect.
Question 2
1 / -0

Which of the following fibres has properties similar to those of silk?

A
Bakelite

B
Acrylic

C
Melamine

D
Rayon

Solution

Rayon was the first semi-synthetic fibre to be formed by the chemical treatment of wood pulp.
It has a silk-like sheen but is more durable and versatile.
Question 3
1 / -0

Which of the following is a popular polyester?

A
Terylene

B
Nylon

C
Teflon

D
Polythene

Solution

Terylene is a popular polyester. It can be drawn into very fine fibres that can be woven like any other yarn.
Question 4
1 / -0

Which of the following substances is not classified as artificial silk?

A
Rayon

B
Polyester

C
Jute

D
Mercerised cotton

Solution

Jute is a natural fibre and cannot be classified as artificial silk.
Artificial silk or (as the term is used in the textile industry) art silk is a synthetically manufactured fibre which resembles silk but is cheaper to produce. Artificial silk is just a synonym for rayon and it is also sometimes called bamboo silk. In the present day, imitation silk may be made with rayon, mercerised cotton, polyester, a blend of these materials, or a blend of rayon and silk.
Question 5
1 / -0

Which of the following synthetic fibres is/are used for making a device used to slow down the movement of an object as it falls or moves through the air?

A
Acrylic

B
Nylon

C
Cotton

D
Polyester

E
Both (1) and (2)

Solution

A parachute is a device used to slow down the movement of a person or an object when such person/object falls or moves through the air. Parachute is made of nylon because it is more elastic, more resistant to mildew and less expensive.
Question 6
1 / -0

Name a polymer occurs naturally?

A
woollen

B
cellulose

C
rayon

D
petrochemicals

E
both (1) and (2)

Solution

Polymers that occur naturally is cellulose. Cellulose is made up of a large number of glucose units.
Question 7
1 / -0

Which of the following types of plastic is/are used to make electric plugs and switches?

A
PVC

B
Nylon

C
Melamine

D
Bakelite

Solution

Bakelite is a poor conductor of heat and electricity. It is used for making electrical switches, handles of various utensils.
Question 8
1 / -0

Which of the following fibres is used as a cheaper substitute of wool?

A
Rayon

B
Teflon

C
Acrylic

D
Nylon

E
Terylene

Solution

Acrylic is a popular synthetic fibre that is used as a cheaper substitute of wool. It can be dyed and is available in vibrant colours.
Question 9
1 / -0

Which of the following objects can be recycled?
(a) Cooker handles
(b) Plastic toys
(c) Plastic carry bags
(d) Wooden chairs
(e) Ballpoint pens

A
a, c and d

B
b, c and e

C
both a and d

D
Only b, c, d and e

E
a, b, c, d and e

Solution

Recycling is the process of recovering and reprocessing the material into useful products, sometimes completely different in form from their original state. Of all these items, only plastic toys, ball point pens, plastic bowls, plastic chairs and wooden chair can be recycled.
Question 10
1 / -0

Which of the following is/are matched correctly?

(a) PVC - Thermoplastic
(b) PET - Thermosetting plastic
(c) Polyethylene - Thermoplastic

A
Only (a)

B
Only (b)

C
Only (c)

D
(a) and (c)

Solution

All PVC, PET and polythene are thermoplastics.
Question 11
1 / -0

The raw materials for manufacturing synthetic fibres are obtained from
(a) wood
(b) coal
(c) petroleum
(d) water

A
Both (a) and (b)

B
Both (a) and (d)

C
Both (b) and (c)

D
(a), (b) and (c)

E
(b), (c) and (d)

Solution

Wood, coal and petroleum are used as raw materials for manufacturing synthetic fibres.
Question 12
1 / -0

Which of the following is/are biodegradable?

A
Aluminium cans

B
Wood

C
Tin cans

D
Plastic bag

Solution

Wood is a biodegradable substance because it is decomposed by the action of microorganisms.
Question 13
1 / -0

All the synthetic fibres are prepared by a number of processes using raw material obtained from

A
animals

B
bacteria

C
plants

D
dead organisms

E
none of these

Solution

Synthetic fibres are made from cellulose, which comes from th plants.
Question 14
1 / -0

Which of the following materials is used in the making of a fireman's uniform?

A
Teflon

B
Melamine

C
Ryon

D
Acrylic

E
Terylene

Solution

Melamine is a special type of synthetic plastic which is fire resistant and is used in the making of uniforms of firemen. Teflon is also a synthetic fibre but it is not fire resistant.
Question 15
1 / -0

Which of the following is not a characteristic of vulcanised rubber?

A
It does not melt upon heating.

B
It is resistant to chemical attack.

C
It is an insoluble thermosetting polymer.

D
It possesses weak covalent bonds.

Solution

When rubber is vulcanised, it becomes cross-linked. This linking of stronger bonds makes vulcanised rubber over 10 times stronger than natural rubber.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Fibres and Plastics Test - 2

Result

Fibres and Plastics Test - 2

Score

-

Rank

-

SHARING IS CARING

Question 1

Synthetic fibres are cheaper than natural fibres.

Synthetic fibres are less durable than natural fibres.

Synthetic fabrics get dried up in less time.

Synthetic fibres are readily available.

Solution

Question 2

Bakelite

Acrylic

Melamine

Rayon

Solution

Question 3

Terylene

Nylon

Teflon

Polythene

Solution

Question 4

Rayon

Polyester

Jute

Mercerised cotton

Solution

Question 5

Acrylic

Nylon

Cotton

Polyester

Both (1) and (2)

Solution

Question 6

woollen

cellulose

rayon

petrochemicals

both (1) and (2)

Solution

Question 7

PVC

Nylon

Melamine

Bakelite

Solution

Question 8

Rayon

Teflon

Acrylic

Nylon

Terylene

Solution

Question 9

a, c and d

b, c and e

both a and d

Only b, c, d and e

a, b, c, d and e

Solution

Question 10

Only (a)

Only (b)

Only (c)

(a) and (c)

Solution

Question 11

Both (a) and (b)

Both (a) and (d)

Both (b) and (c)

(a), (b) and (c)

(b), (c) and (d)

Solution

Question 12