case /data -based (4 Marks)

MCQ 14 Marks

He pours one spoon of dye on each fabric.
He then washes the fabrics with the same detergent.
Atul has four different fabrics.
The table shows what he inds after the wash.

Silk	Acrylic	Nylon	Cotton
Light stain	No stain	No stain	Light stain

$10.$ Which question can be answered through Atul’s activity?

A
Which detergent best removes stains?
✓
Which type of fabric best retains dye?
C
Which is the best dye to colour fabrics?
D
Which fabric is most comfortable to wear in summers?

Answer

Correct option: B.

Which type of fabric best retains dye?

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Question 24 Marks

$9.$ What is the woman in the picture doing?

Answer

$9.$ Mentions that the woman is spinning ibres to make yarn.
Or
For example:
● The woman is spinning ibres.
● The woman is making a yarn.

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MCQ 34 Marks

The picture shows a piece of fabric.

Four friends discuss ways to ind out if the fabric is made of natural or synthetic ibres.
The table lists their suggestions.

Friend	Suggestion
Tina	Colour the fabric and check how well it retains colour
Amit	Burn the fabric and check if it melts or burns
Sania	Soak the fabric in water and check if it absorbs water
Mahesh	Tear the fabric and check how strong the fabric is

$8.$Who made the correct suggestion?

A
Tina
✓
Amit
C
Mahesh
D
Sania

Answer

Correct option: B.

Amit

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Question 44 Marks

Rohan wants to ind out which type of fabric best absorbs water.
He soaks four different types of fabrics in water for $15$ minutes.
He places each fabric on a sieve and allows the water to drain.
He then measured the mass of the wet fabrics.

Fabric type	Mass of the wet fabric
Cotton	$120\ g$
Silk	$100\ g$
Polyester	$85\ g$
Wool	$110\ g$

$6.$What extra information does Rohan need to ind out which fabric best absorbs water?
$A.$ The time each fabric took to dry completely
$B.$ The mass of each fabric before soaking in water
$C.$ The amount of water in which the fabrics were soaked
$D.$ The temperature of the water in which the fabrics were soaked
$7.$What does Rohan need to keep the same for all the four fabrics?
Circle $‘Yes’$ or $‘No’$ for each row

Should this be kept same for all the four fabrics?	$Yes$ or $No$
The colour of the fabrics	$Yes/No$
The size of the fabrics	$Yes/No$
The thickness of the fabrics	$Yes/No$

Answer

$6. B.$ The mass of each fabric before soaking in water
$7.$ No
Yes
Yes

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Question 54 Marks

$3.$Which feature was used to group the fabrics?
$A.$ Shiny/Dull
$B.$ Rough/Smooth
$C.$ Natural/Synthetic
$D.$ Animal ibre/Plant ibre
$4.$What is the correct sequence for making cotton shirt from cotton balls?
$A.$ Fabric spun into fibres $\rightarrow $Fibres woven into yarn
$B.$ Fibres spun into yarn $\rightarrow $Yarn woven into fabric
$C.$ Yarn woven into fabric $\rightarrow $ Fabric spun into fibres
$D.$ Yarn knitted into fibres$ \rightarrow $ Fibres woven into fabric
$5.$Which part of a cotton plant is used to obtain cotton balls?
$A.$ Fruit
$B.$ Stem
$D.$ Leaves
$C.$ Flowers

Answer

$3. C.$ Natural/Synthetic
$4. B.$ Fibre spun into yarn →yarn woven into fabric
$5. A.$ Fruit

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MCQ 64 Marks