class-4-Science-Our Necessicities

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class-4-Science-Our Necessicities

1 / 20
An elevated house on bamboo poles is usually made in places :
Where floods occur due to heavy rains
Where it is very warm
Where there is fear of theft
Where it snows

2 / 20
Slanting roofs :
Keep the house hot and warm
Collect snow
Do not collect snow and rain water
Collect rain water

3 / 20
To protect the house from the influence of weather, it should be coated with :
Paint
Mud and straw
Dung cake
Spray of kerosene

4 / 20
Eskimos use :
Helmets
Robes
Fur
Bullet proofs

5 / 20
Cotton plant is :
Bushy
Hard
Lengthy
Shallow

6 / 20
In which century were synthetic yarns introduced ?
19th
16th
20th
10th

7 / 20
Which of these fibres is/are strong and lustrous ?
Wool
Cotton
Silk
Linen

8 / 20
Insignias mean :
Uniforms
Fur
Decoration
Badges

9 / 20
Cotton plant is :
t has a cellulose layer
It contains crystalline fibre
All the above
It is hydrophilic in nature

10 / 20
In Japan houses are usually made of wood because :
The Japanese are nomadic
Of frequent earthquakes
It is very cheap
It is cool inside a wooden house

11 / 20
Artificial silk is :
Rayon
Acetate
Polyester
Acrylic

12 / 20
Clothes are mainly used :
To cover the body
For comfort and protection
All of these
To be attractive

13 / 20
An important tool in taking body measurement is :
Tracing wheel
Thread
Measuring tape
Scale

14 / 20
Football players wear :
Asbestos clothing
Protective padding
Robes
Fur

15 / 20
Cotton buds blossom in :
23 days
21 days
20 days
24 day

16 / 20
Existing weather conditions determine the :
Material used for the house in an area
All of the above
Design of the house in an area
Shape of the house in an area

17 / 20
The moisture absorption is :
8.5%
6%
8%
9.5 %

18 / 20
The silk fibre was invented by :
Egyptians
Chinese
Japanese
Indians

19 / 20
Polyester is referred to as :
Cellulose acetate
Work horse
Dupont
Acrylic

20 / 20
Bricks are baked in :
Furnaces
Open furnaces
Electric oven
Kilns

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