Practice the AP 7th Class Science Bits with Answers Chapter 3 Animal Fibre on a regular basis so that you can attempt exams with utmost confidence.

AP State Syllabus 7th Class Science Bits 3rd Lesson Animal Fibre with Answers

Choose the correct answer.

Question 1.
Eggs of silk moth are called
A) Larva
B) Seeds
C) Pupa
D) Imago
Answer:
B) Seeds

Question 2.
A female moth lays around ………………. eggs in one go.
A) 500
B) 50
C) 5,000
D) 5
Answer:
A) 500

AP 7th Class Science Bits Chapter 3 Animal Fibre with Answers

Question 3.
A big silk seed growing centre is at
A) Pochampadu
B) Dharmavaram
C) Horsely Hills
D) Kanchi
Answer:
C) Horsely Hills

Question 4.
The cocoons have to be stiffled to kill ……………. inside.
A) Eggs
B) Larva
C) Pupa
D) The worm
Answer:
B) Larva

Question 5.
Food for silk worms.
A) Mulberry leaves
B) Mango leaves
C) Coconut leaves
D) Jasmine leaves
Answer:
A) Mulberry leaves

Question 6.
The hair of animals collectively called
A) Fur
B) Skin
C) Fibre
D) None
Answer:
A) Fur

AP 7th Class Science Bits Chapter 3 Animal Fibre with Answers

Question 7.
Fleece of sheep is removed from its body during …………….. season.
A) Winter
B) Summer
C) Rainy
D) Spring
Answer:
D) Spring

Question 8.
After washing, …………… is passed over the wool to make it softer.
A) Steam
B) Grease
C) Cool air
D) Hot air
Answer:
C) Cool air

Question 9.
Silk is mainly
A) Carbohydrate
B) Worms
C) Protein
D) Cocoon
Answer:
C) Protein

Question 10.
Cotton is mainly
A) Proteins
B) Cellulose
C) Coarse
D) Soft
Answer:
B) Cellulose

AP 7th Class Science Bits Chapter 3 Animal Fibre with Answers

Question 11.
………………. useful to make different types of fibres.
A) Cotton
B) Jute
C) Coconut
D) All the above
Answer:
D) All the above

Question 12.
Eggs of silk moth called …………………
A) Embryo
B) Larvae
C) Seeds
D) Cocoon
Answer:
C) Seeds

Question 13.
“Chilakalu” means
A) Silk moths
B) Butterfly
C) Caterpillar
D) All the above
Answer:
A) Silk moths

Question 14.
Moths are also called ……………….
A) Bombyx mori
B) Insects
C) Butterfly
D) Honey bee
Answer:
A) Bombyx mori

AP 7th Class Science Bits Chapter 3 Animal Fibre with Answers

Question 15.
A female moth lays around ………………. number of eggs in one go.
A) 400
B) 500
C) 600
D) 550
Answer:
B) 500

Question 16.
Grinages grow ……………….
A) Embryos
B) Seeds
C) Caterpillar
D) Cocoon
Answer:
B) Seeds

Question 17.
Caterpillars feed by ……………… leaves.
A) Grass
B) Leaves
C) Cocoon
D) Mulberry leaves
Answer:
D) Mulberry leaves

Question 18.
Chandrikalu means …………………..
A) Cane frames
B) Glass tubs
C) Cocoons
D) Mulberry huts
Answer:
A) Cane frames

AP 7th Class Science Bits Chapter 3 Animal Fibre with Answers

Question 19.
Caterpillar stops eating at the age of ……………….
A) 25 to 30 days
B) 30 to 35 days
C) 40 days
D) Several months
Answer:
B) 30 to 35 days

Question 20.
Caterpillar secretes …………….. substance.
A) Fibre
B) Cellulose
C) Starch
D) All the above
Answer:
A) Fibre

Question 21.
“Pattu kayalu’ means
A) Silk worm
B) Cocoon
C) Seeds
D) Chandrikalu
Answer:
B) Cocoon

Question 22.
Young moths come out from …………..
A) Eggs
B) Mulberry leaves
C)Seeds
D) Cocoon
Answer:
D) Cocoon

AP 7th Class Science Bits Chapter 3 Animal Fibre with Answers

Question 23.
Stiffling helps to store ……………. for a long time.
A) Cocoons
B) Seeds
C) Worms
D) Caterpillar
Answer:
A) Cocoons

Question 24.
Stiffling done in …………….. centres.
A) Seed growing
B) Reeling
C) Weaving
D) All the above
Answer:
B) Reeling

Question 25.
Silk moths that lay eggs on oak plant produce …………….. silk.
A) Moonga
B) Tussar
C),Eri
D) Mulberry
Answer:
B) Tussar

Question 26.
……………. silk is produced in our state Telangana.
A) Mulberry
B) Tasar
C) Desali
D) All of these
Answer:
D) All of these

AP 7th Class Science Bits Chapter 3 Animal Fibre with Answers

Question 27.
Silk is made up of ………………….. proteins.
A) Sirisine
B) Fibroin
C) Both A & B
D) None of these
Answer:
C) Both A & B

Question 28.
Obtaining silk fibre from cocoon is called
A) Weaving
B) Spinning
C) Reeling
D) Knitting
Answer:
C) Reeling

Question 29.
Special machines like reelers and twisters are used in …………….
A) Reeling
B) Spinning
C) Knitting
D) Weaving
Answer:
A) Reeling

Question 30.
Cotton is made up of cellulose, but silk has
A) Protein
B) Lipids
C) Carbohydrates
D) Vitamins
Answer:
A) Protein

Question 31.
……………. is famous for wide boarder and rich buta
A) Potchampally
B) Darmavaram
C) Banaras
D) Bengal
Answer:
B) Darmavaram

AP 7th Class Science Bits Chapter 3 Animal Fibre with Answers

Question 32.
2000 to 3000 cocoons alre required to produce ………………. gms of silk
A) 500
B) 600
C) 700
D) 300
Answer:
A) 500

Question 33.
Good quality of wool is given by ……………….
A) Angora goat
B) Merino sheep
C) Llama
D) Camels
Answer:
B) Merino sheep

Question 34.
Rough and coarse hair is produced by
A) Goat
B) Sheep
C) Camel
D) Rabbit
Answer:
C) Camel

Question 35.
Scouring means removing of
A) Dust
B) Grease
C) Dirt
D) All of these
Answer:
D) All of these

AP 7th Class Science Bits Chapter 3 Animal Fibre with Answers

Question 36.
Which one of the following is a poor conductor of heat ?
A) Copper
B) Silver
C) Iron
D) Air
Answer:
D) Air

Question 37.
Wool is use as
A) Conductor
B) Insulator
C) Heater
D) Cooler
Answer:
B) Insulator

Question 38.
1) Egg 2) Pupa 3) Adult D) larva
The correct order is
A) 1,2,4, 3
B) 1. 4, 2, 3
C) 1, 3, 2,4
D) 1, 4, 3, 2
Answer:
B) 1. 4, 2, 3

Question 39.
‘Grinages’ are
A) Seed centers
B) Larva centers
C) Adult centers
D) Silk centers
Answer:
A) Seed centers

AP 7th Class Science Bits Chapter 3 Animal Fibre with Answers

Question 40.
‘Bombyx mori’ is a
A) Honey bee
B) Warsp
C) Housefly
D) Silk moth
Answer:
D) Silk moth

Question 41.
Name of the sac, where the catterpillar sleeps
A) Stuff
B) Chandrikalu
C) Cocoon
D) Reels
Answer:
C) Cocoon

Question 42.
Killing of the silk moth larva’s is called
A) Reeling
B) Yarn
C) Stiffling
D) Silk
Answer:
C) Stiffling

Question 43.
The stiffling process takes place at
A) Reeling centers
B) Grinages
C) Chandrikalu
D) Horsely Hills
Answer:
A) Reeling centers

AP 7th Class Science Bits Chapter 3 Animal Fibre with Answers

Question 44.
‘Desali pattu ‘is
A) Tasar silk
B) Moonga silk
C) Erisilk
D) Mulberry silk
Answer:
A) Tasar silk

Question 45.
The process in the picture is
AP 7th Class Science Bits Chapter 3 Animal Fibre with Answers 1
A) Stiffling
B) Reeling
C) Warping
D) Feeding
Answer:
A) Stiffling

Question 46.
The equipment show in the figure is
AP 7th Class Science Bits Chapter 3 Animal Fibre with Answers 2
A) Cacoon
B) Chandrikalu
C) Reeling
D) Woven
Answer:
B) Chandrikalu

Question 47.
Fill the blank in the life cycle of silk moth
AP 7th Class Science Bits Chapter 3 Animal Fibre with Answers 3
A) Pupa
B) Laren
C) Silk moth
D) Housefly
Answer:
A) Pupa

AP 7th Class Science Bits Chapter 3 Animal Fibre with Answers

Question 48.
The country that used the silk for first time
A) India
B) China
C) Japan
D) America
Answer:
B) China

Question 49.
1) Dying 2) Sorting
3) Scouring 4) Shearing
The correct order is
A) 4, 3, 2, 1
B) 2, 3, 4, 1
C) 4, 3, 1,2
D) 3, 4, 2,1
Answer:
A) 4, 3, 2, 1

Question 50.
Removing the colour of wool is
A) Bleaching
B) Sorting
C) Spinning
D) Scouring
Answer:
A) Bleaching

Question 51.
Making threads of yarn is
A) Spinning
B) Carding
C) Dyeing
D) Sorting
Answer:
A) Spinning

AP 7th Class Science Bits Chapter 3 Animal Fibre with Answers

Question 52.
Write the correct order of Collecting Wool.
A) Shearing, Scouring, Sorting
B) Scouring, Sarting, Shearing
C) Shearing, Sorting, Scouring
D) Sorting, Shearing, Scouring
Answer:
A) Shearing, Scouring, Sorting

Question 53.
Which city is called silk city in our State?
A) Venkatagiri
B) Dharmavaram
C) Madanapalli
D) Hanuman Junction
Answer:
B) Dharmavaram

Question 54.
The first stage in making of woollen clothes?
A) Scouring
B) Sorting
C) Shearing
D) Bleaching
Answer:
C) Shearing

Question 55.
Fill the blank in the flow chart with the given answer.
AP 7th Class Science Bits Chapter 3 Animal Fibre with Answers 4
A) Stuffing
B) Moths
C) Reeling
D) Chilakalu
Answer:
A) Stuffing

Question 56.
Material present in silk thread
A) Protein
B) Fat
C) Carbohydrate
D) Cellulose
Answer:
A) Protein

AP 7th Class Science Bits Chapter 3 Animal Fibre with Answers

Question 57.
If you went to silk showroom to know the quality of silk, what type of exact question do you ask?
A) How you decide the cost
B) These silk clothes have long life
C) Silk is prepared with
D) Silks are how many types
Answer:
D) Silks are how many types

Question 58.
In summer season what type of clothes do you wear?
A) Cotton, light colour
B) Woollen, Silk
C) Cotton, dark colour
D) Silk, Woollen
Answer:
A) Cotton, light colour

Question 59.
Animal fibre: protein :: plant fibre:
A) Fat
B) Protein
C) Carbohydrate
D) Mineral
Answer:
C) Carbohydrate

Question 60.
Which of the following shows the correct sequence of processes in making woollen fabric?
A) Shearing – scouring – combing – spinning – weaving
B) Scouring – spinning – combing – shearing – weaving
C) Weaving – scouring – shearing – combing – spinning
D) Shearing – weaving – combing – spinning – scouring
Answer:
A) Shearing – scouring – combing – spinning – weaving

AP 7th Class Science Bits Chapter 3 Animal Fibre with Answers

Question 61.
Name the stages of silkworm weavers buy from sericulture industury.
A) Larva
B) Pupa
C) Eggs
D) Moth
Answer:
B) Pupa

Question 62.
Identify the process that helps to store the cocoons for a long time.
A) Boiling
B) Stiffling
C) Reeling
D) Weaving
Answer:
A) Boiling

Question 63.
The silk fibres are composed of
A) Siricin & thrombin
B) Fibroin & thrombin
C) Cellulose & fat
D) Siricin & fibroin
Answer:
D) Siricin & fibroin