Which of the following set of features belong to thermoplastics ? *
1 point
soft and less brittle
soft and brittle
hard and strong
hard and less brittle
Answers
Answer:
Q.1) Fibres are :
artificial
natural
all of these
synthetic
Correct Answer: all of these
Q.2) PVC is :
paravinyl chloride
polyvinyl chloride
paravenyl chloride
polyvenyl chloride
Correct Answer: polyvinyl chloride
Q.3) Which of the following set of features belong to thermoplastics ?
soft and less brittle
hard and less brittle
hard and strong
soft and brittle
Correct Answer: soft and less brittle
Q.4) Cellulose is used to prepare :
Rayon
Acrylic
Nylon
Polyethylene
Correct Answer: Rayon
Q.5) The oldest synthetic plastic is :
Melamine
Polythene
Polyester
Bakelite
Correct Answer: Bakelite
Q.6) Best alternative to wool is :
Nylon
Acrylic
Bakelite
Rayon
Correct Answer: Acrylic
Q.7) Statement incorrect for synthetic fibres is/are:
long lasting
all the above
very expensive
non-biodegradable
Correct Answer: very expensive
Q.8) First synthetic fibre formed from natural material is:
Acrylon
Polyester
Nylon
Rayon
Correct Answer: Rayon
Q.9) First man-made fibre produced chemically is:
Nylon
Terylene
Polyester
Rayon
Correct Answer: Nylon
Q.10) The lightest plastic material is :
Polythene
Polypropylene
Polyester
Bakelite
Correct Answer: Polypropylene
Q.11) Which of the following fibres are made from petroleum products?
all of these
decron
terylene
acrylon
Correct Answer: all of these
Q.12) A strand of a substance is called :
fibre
fabric
yarn
thread
Correct Answer: fibre
Q.13) Which one is artificial silk?
Fibroin
Nylon
Rayon
Teflon
Correct Answer: Rayon
Q.14) When plastics are burnt they release:
nitrogen gas
oxygen gas
toxic gases
biogas
Correct Answer: toxic gases
Q.15) Which of the following is incorrect regarding plastics:
resistant to weather
durable
non recyclable
non biodegradable
Correct Answer: non recyclable
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