Ques. Which of these is not natural fiber?
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Ques. Silk fiber are made up of:
(d) Non of these
Ques. Acrylic is an artificial wool.
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Ques. Plastics are light, strong and durable
Ques. Which out of the following is used for making disposable cups?
Ques. Parachutes and ropes for rock climbing are made from ___
(c) artificial silk
Ques. Which of the following plastics is used in the making of thermocol ?
(b) High density polyethylene
Ques. First fully synthetic fiber was ___
Ques. Which is an example of thermosetting plastics?
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Ques. Which one is natural fiber?
Ques. Which of the following material take the longest to degenerate?
(b) cotton cloth
(c) tin can
(d) plastic bags
Ques. Silk fiber is obtained from
(a) silk moth
(b) silk plant
(d) none of these
Ques. Which of the following is non-biodegradable:
(d) leftover food stuff
Ques. What is the main disadvantage of synthetic fiber?
(a) cause pollution
(b) are costly
(c) not durable
(d) are heavy
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Ques. Which type of cloth dries faster in rainy season?
Ques. Plastics find extensive use because:
(a) plastic is a polymer
(b) plastic has a linear arrangement of units
(c) it is easily mould able
(d) it is synthetic
Ques. Which synthetic fiber can be stronger than a steel wire?
(a) Wire made of rayon
(b) Wire made of nylon
(c) Wire made of polywool
(d) Wire made of polycot
Ques. PET is a familiar form of:
Ques. Synthetic fibers are made by _____.
(c) human beings
Ques. Nylon is obtained from:
(d) all of the above
Ques. Which of the following properties of plastic make it most convenient to use?
(a) It is non-reactive
(b) Light, strong and durable
(c) Easily remouldable
(d) All of the above