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question_answer1)
Consider the following statements (i-iv) and select the option that correctly identifies true (T) and false (F) ones.
(i) Silk is a cellulosic fiber. |
(ii) The hair on a sheep's body is called fleece, |
(iii) Silk fabric was first developed in ancient China. |
(iv) Cashmere is an extremely soft wool obtained from Cashmere sheep. |
A)
B)
C)
D)
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question_answer2)
Match column I with column II and select the correct option from the codes given below.
Column - I | Column - II |
(a) Clothing material | (i) Nylon |
(b) Twisted fibre | (ii) Fabric |
(c) Synthetic fibre | (iii) Yarn |
(d) Animal fibre | (iv) Jute |
(e) Plant fibre | (v) Wool |
A)
(a) - (i), (b) - (ii), (c) - (iii), (d) - (iv), (e) - (v) done
clear
B)
(a) - (ii), (b) - (iii), (c) - (v), (d) - (i), (e) - (iv) done
clear
C)
(a) - (ii), (b) - (iii), (c) - (i), (d) - (v), (e) - (iv) done
clear
D)
(a) - (i), (b) - (iv), (c) - (iii), (d) - (ii), (e) - (v) done
clear
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question_answer3)
The given figure shows a tool which is used to convert wool fleece into narrow untwisted fibres called slivers. This tool is used in the process of ___ of wool.
A)
Shearing done
clear
B)
Scouring done
clear
C)
Carding done
clear
D)
Sorting done
clear
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question_answer4)
Which of the following statements is incorrect?
A)
Fibroin is the gummy substance that holds the two strands of sericin of a silk fibre together. done
clear
B)
Asbestos is the only naturally occurring long mineral fibre. done
clear
C)
Merino is an exotic breed of sheep. done
clear
D)
Hair present on body of wool-yielding animals trap a lot of air. done
clear
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question_answer5)
Match column I with column II and select the correct option from the codes given below.
Column I (Material) | Column II (Smell on burning) |
(a) Silk | (i) Burning plastic |
(b) Wool | (ii) Charred meat |
(c) Nylon | (iii) Burning hair |
A)
B)
C)
D)
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question_answer6)
The given table enlists types of silk (P) and plants on the leaves of which the related silkworm feeds (Q). Select the option which completes the table.
P | Q |
Mulberry | Mulberry |
Muga | X |
Eri | Y |
Tussar | Z |
A)
B)
C)
D)
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question_answer7)
Which of the following stages in the life history of a silk moth produces silk fibres?
A)
B)
C)
D)
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question_answer8)
Wool industry is an important means of livelihood for many people in our country. But sorters' job is risky as sometimes they get infected by a____ called____.
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which leads to a fatal lung disease called sorter's disease.
|
A)
Bacterium, Bacillus anthracis done
clear
B)
Bacterium, Escherichia coli done
clear
C)
Fungus, Salmonella typhimuhum done
clear
D)
Virus, Vibrio anthracis done
clear
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question_answer9)
Pick the odd one out from each series given below and select the correct option.
(i) Muga, Kosa, Cashmere, Tussar |
(ii) Larva, Pupa, Silk moth, Tadpole |
(iii) Patanwadi, Marwari, Pashmina, Lohi |
A)
B)
C)
D)
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question_answer10)
Which of the following options does not represent a property of wool?
A)
Wool is an elastic fibre. done
clear
B)
Wool can absorb moisture. done
clear
C)
Wool is a poor conductor of heat. done
clear
D)
While burning wool gives the smell of burning paper. done
clear
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question_answer11)
In the given table, identify the correct match of name of breed, quality of wool and state where the breed is found.
| Name of breed | Quality of wool | State where found |
(i) | Lohi | Good quality wool | Rajasthan, Punjab |
(ii) | Rampur Bushair | For woollen shawls | Jammu and Kashmir |
(iii) | Patanwadi | Coarse wool | Uttar Pradesh, Himachal Pradesh |
(iv) | Nali | Carpet wool | Rajasthan, Haryana |
A)
(i) and (ii) only done
clear
B)
(i) and (iv) only done
clear
C)
(ii) and (iii) only done
clear
D)
(iii) and (iv) only done
clear
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question_answer12)
Which of the following statements are correct regarding sericulture?
(i) After hatching, the silkworms are fed on freshly chopped mango leaves.
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(ii) The silk fibre is obtained from the cocoons by a process known as reeling.
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(iii) If an adult is allowed to emerge out from cocoon, the cocoon becomes useless for silk production.
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A)
(i) and (ii) only done
clear
B)
(i) and (iii) only done
clear
C)
(ii) and (iii) only done
clear
D)
(i), (ii) and (iii) done
clear
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question_answer13)
Read the given paragraph carefully.
The female silk ___(i)___ lays eggs. When an egg hatches, a tiny caterpillar called silkworm or ___(ii)___ crawls out. It feeds on leaves and grows. When it is ready to enter the next stage in its life cycle, it secretes a fibre made of ___(iii)___. which hardens on exposure to air. This is the silk fibre. It covers itself completely with this fibre, to form a ___(iv)___. At this stage, the larva is called a ___(v)___. Which grows and changes inside the covering and, a few weeks later comes out as an adult.
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Select the correct sequence of words to complete the above paragraph.
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A)
B)
C)
D)
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question_answer14)
Read the given statements and select the correct option.
Statement 1: Shearing does not harm the sheep. |
Statement 2: The uppermost layer of the skin is made up of dead cells. |
A)
Both statements 1 and 2 are true and statement 2 is the correct explanation; of statement 1. done
clear
B)
Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1. done
clear
C)
Statement 1 is true but statement 2; is false. done
clear
D)
Both statements 1 and 2 are false. done
clear
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question_answer15)
Refer to the given figure.
|
|
At which labelled stage moulting occurs?
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A)
P only done
clear
B)
Q only done
clear
C)
P and R only done
clear
D)
R and S only done
clear
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question_answer16)
Swati take X fabric and bum it. She observes following properties of the fabric :
(i) It burns but does not melt. |
(ii) It shrinks from flame. |
(iii) It gives the odour of charred meat while burning. |
(iv) It left residue after burning which is black, hollow, irregular bead that can be easily crushed to a gritty black powder. |
(v) It is self-extinguishing. |
According to her observation, X could be
A)
Silk done
clear
B)
Jute done
clear
C)
Cotton done
clear
D)
Nylon. done
clear
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question_answer17)
Read the following statements carefully and select the option which correctly identifies the true (T) and false (F) statements.
(i) Synthetic fibres are the fibres that are made from chemicals. |
(ii) Angora wool is obtained from Angora rabbit. |
(iii) The wool obtained from Patanwadi breed of goat is used for hosiery. |
(iv) Silk is the weakest of all natural fibres, |
A)
B)
C)
D)
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question_answer18)
Read the following statements.
(a) The plant fibres are made up of _____ which is a structural material in the plant world.
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(b) The process of taking out threads from the cocoon to use as silk is called as _____
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(c) The sheared hair of sheep is moved through tubes filled with soapy water to remove dust, dirt and grease. This is known as _____
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(d) Mohair, spun from the fleece of the Angora ____ is extremely light; weight.
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Select the option which correctly fills the blanks in any two of the above statements.
A)
B)
C)
D)
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question_answer19)
Refer to the given flow chart and select the correct statement regarding P, Q, R and S.
A)
P is the strongest natural fibre. done
clear
B)
Q is made up of protein while R is made up of cellulose. done
clear
C)
S is obtained from salivary gland of source organism. done
clear
D)
R is composed of fibroin and sericin. done
clear
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question_answer20)
Following is a random sequence of steps in the processing of wool. Arrange these steps in the correct sequence and select the correct option.
(i) Scouring
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(ii) Sorting
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(iii) Shearing
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(iv) Removing burrs
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(v) Dyeing
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(vi) Yarn
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(vii) Spinning
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(viii) Weaving
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(ix) Fabric
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(x) Carding
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|
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A)
(iii) \[\to \](i) \[\to \] (ii) \[\to \] (iv) \[\to \] (x) \[\to \](v) \[\to \] (vii) \[\to \] (vi) \[\to \] (viii) \[\to \] (ix) done
clear
B)
(iii) \[\to \] (ii) - (i) \[\to \] (iv) \[\to \] (v)\[\to \] (x) \[\to \] (vii) \[\to \](vi) \[\to \] (viii) \[\to \] (ix) done
clear
C)
(iii) \[\to \](ii) \[\to \] (i) \[\to \] (iv) \[\to \] (x) \[\to \] (v) \[\to \] (vii) \[\to \] (vi) \[\to \] (viii) \[\to \] (ix) done
clear
D)
(iii) \[\to \] (i) \[\to \] (iv) \[\to \] (ii) \[\to \] (v) \[\to \] (x) \[\to \](vii) \[\to \] (vi) \[\to \] (viii) \[\to \] (ix) done
clear
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