7th Standard CBSE Syllabus & Materials
7th Standard CBSE
CBSE 7th Social Science Theme E - Understanding Market - New Sample Question Papers Study Material - QB365 Set A
NEW7th Standard CBSE
CBSE 7th Social Science Theme E - From Barter to Money - New Sample Question Papers Study Material - QB365 Set A
NEW7th Standard CBSE
CBSE 7th Social Science Theme D - The Constitution of India- An Introduction - New Sample Question Papers Study Material - QB365 Set A
NEW7th Standard CBSE
CBSE 7th Social Science Theme D - From the Rulers to the Ruled : Types of Governments - New Sample Question Papers Study Material - QB365 Set A
NEW7th Standard CBSE
CBSE 7th Social Science Theme B - The Age of Reorganisation - New Sample Question Papers Study Material - QB365 Set A
NEW7th Standard CBSE
CBSE 7th Social Science Theme B - The Rise of Empires - New Sample Question Papers Study Material - QB365 Set A
Published on: 24/08/2019
Fibre to Fabric
Download CBSE Class 7th Standard CBSE Science question papers, sample papers, important questions, and previous year solved papers in PDF format. Get free study materials, NCERT solutions, and exam preparation resources for Class 7th Standard CBSE Science
Questions + Answers key
Take MCQ Science Test
1.
Burrs are the :
Wool obtained from the camel
Wool obtained from the goat
Small fluffy fibres in wool
Pupa
2.
Which one is animal fibre?
Cotton
Silk
Polyester
Jute
3.
Which one of the following is not a variety of silk?
Nali
Tassar
Mooga
Drganza
4.
Silk is a :
Staple fibre
Rough fibre
Filament fibre
Textured fibre
5.
Which one is not a part of the process of wool manufacturing?
Carding
Rolling
Reeling
Scouring
6.
Silkworms secrete fibre made of
fat
cellulose
protein
nylon
7.
Reeling of silk is
a process of making silk reels
spinning of silk fibres
weaving of silk cloth
the process of taking silk threads from cocoon
8.
The general process that takes place at a sheep shearing shed is
removal of fleece
separating hair of different textures
washing of sheep fibre to remove grease
rolling of sheep fibre into yarn
9.
Selective breeding is a process of
selecting the offsprings with desired properties
selecting the parents with desired properties
selecting an area for breeding
selecting fine hair for good quality wool
10.
The silkworm is (i) a caterpillar, (ii) a larva.
(i)
(ii)
Both (i) and (ii)
Neither (i) nor (ii)
11.
Pupa is the next stage of ________ in the life history of silk moth
12.
The dried perspiration of sheep is called _________.
13.
Lohi and nali are breeds of ______
14.
Silkworms spin _____ of silk fibre.
15.
Silkworms are ______ of silk moth.
16.
The rearing of silkworms for obtained silk is called silviculture.
17.
Silkworms are caterpillars of silk moth.
18.
Mooga is the strongest variety of wool.
19.
Silkworm feeds on oak leaves.
20.
Silk is a natural carbohydrate fibre.
21.
Washing of hair removed from sheep
22.
A woollen fabric with a smooth surface
23.
Kashmiri goat
24.
Camel
25.
Sheep
1.
(c)
Small fluffy fibres in wool
2.
(b)
Silk
3.
(a)
Nali
4.
(c)
Filament fibre
5.
(c)
Reeling
6.
(c)
protein
7.
(d)
the process of taking silk threads from cocoon
8.
(a)
removal of fleece
9.
(b)
selecting the parents with desired properties
10.
(c)
Both (i) and (ii)
11.
( )
caterpillar
12.
( )
suint
13.
( )
sheep
14.
( )
cocoons
15.
( )
larvae
16.
(b)
17.
(a)
18.
(b)
19.
(b)
20.
(b)
21.
( )
Scouring
22.
( )
Worsted
23.
( )
Pashmina
24.
( )
Fur
25.
( )
Wool
7th Standard CBSE Syllabus & Materials
7th Standard CBSE
CBSE 7th Social Science Theme B - New Beginnings : Cities and States - New Sample Question Papers Study Material - QB365 Set A
NEW7th Standard CBSE
CBSE 7th Social Science Theme A - Climates of India - New Sample Question Papers Study Material - QB365 Set A
NEW7th Standard CBSE
CBSE 7th Social Science Theme A - Geographical Diversity of India - New Sample Question Papers Study Material - QB365 Set A
NEW7th Standard CBSE
CBSE 7th Science Earth, Moon and the Sun - New Sample Question Papers Study Material - QB365 Set A
CBSE 7th Standard CBSE Subjects
CBSE Standards
