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Science Test - 4
Read Instructions for the test.
Negative marks are -0.33 per wrong answer
Right answer is 1 mark
No time limit but finish in 30 mins
Solution can be found at below chapters:
Test series is based on following chapters.
Science Chapter 5: Fabrics
Science Chapter 6: Elements
Q1:Natural fibers are
Q2:Cotton is a polymer of
Q3: Wool of Kashmiri goats is of type
Q4: Rearing of silkworms to obtain silk is
Q5: Jute is obtained from which part of the plant
Q6: Flax is
polymer of coal
obtained from petrochemicals
Q7:Which property is applicable to artificial fibers
are made from petrochemicals
catch fire easily
Q8: Artificial silk is also called
Q9: First fully synthetic fiber is
Q10: A string of this fiber is stronger than string of steel so it’s used in making parachutes and ropes.
Q11: Polyester used for making bottles, utensils, wires etc is
Q12:Plastics that bend on heating and are called
Q13: this plastic is used in non stick cookware.
Q14: This plastic is used on coat of firemen so it makes them flame resistant.
Q15:Which is true
thermoplastics are [PVC, Polythene].
thermosetting plastics are [Bakelite, melamine]
Q16:Scientific name of rubber is
cis 1, 4 isoprene.
Q17: Since natural rubber is brittle at low temperatures and soft at high temperatures it is treated in a process called
Q18: This is a blood disease common among wool sorters.
Q19:Match the sheep breeds
Lohi – Raj, Punjab
Rampur bushair – UP, HP
Nali- Raj, Punjab, Haryana
Q20: Hardest carbon allotrope is
Q21: Metals which can be cut by knife
Q22: Graphite is used for
conductor of electricity
lubricant in machines where oil can’t be used due to high temperature
Q23:Sodium is very reactive with oxygen and hence stored in
Q24: CO2 is a good fire extinguisher because
it cuts off oxygen supply to fire by making a protective blanket as it’s heavier than O2.
it is flame resistant
it is lighter than oxygen
Q25:The amount of heat energy produced on complete combustion of 1 kg of a fuel is called its
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