All Courses
Get the App Signup / Login
Sign in Open App
Class 7 Exam  >  Class 7 Tests  >  Advance Learner Course: Science Class 7  >  Test: Synthetic Fibres And Plastics (Medium) - Class 7 MCQ

Test: Synthetic Fibres And Plastics (Medium) - Class 7 MCQ


Test Description

20 Questions MCQ Test Advance Learner Course: Science Class 7 - Test: Synthetic Fibres And Plastics (Medium)

Test: Synthetic Fibres And Plastics (Medium) for Class 7 2024 is part of Advance Learner Course: Science Class 7 preparation. The Test: Synthetic Fibres And Plastics (Medium) questions and answers have been prepared according to the Class 7 exam syllabus.The Test: Synthetic Fibres And Plastics (Medium) MCQs are made for Class 7 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Synthetic Fibres And Plastics (Medium) below.
Solutions of Test: Synthetic Fibres And Plastics (Medium) questions in English are available as part of our Advance Learner Course: Science Class 7 for Class 7 & Test: Synthetic Fibres And Plastics (Medium) solutions in Hindi for Advance Learner Course: Science Class 7 course. Download more important topics, notes, lectures and mock test series for Class 7 Exam by signing up for free. Attempt Test: Synthetic Fibres And Plastics (Medium) | 20 questions in 20 minutes | Mock test for Class 7 preparation | Free important questions MCQ to study Advance Learner Course: Science Class 7 for Class 7 Exam | Download free PDF with solutions
Test: Synthetic Fibres And Plastics (Medium) - Question 1
Save

Like synthetic fibres, plastic is also a:

Detailed Solution for Test: Synthetic Fibres And Plastics (Medium) - Question 1
Synthetic fibres are made up of raw materials such as petroleum, based on chemicals and petrochemicals, which are polymerized into a long, linear chemical with different chemical compounds.

Plastics are organic polymers of high molecular mass and contain other substances, called monomers. Therefore, we can say that both synthetic fibres and plastics are made by polymerization of their monomer units.

Test: Synthetic Fibres And Plastics (Medium) - Question 2
Save

The use of plastic material polyesters is in:

Detailed Solution for Test: Synthetic Fibres And Plastics (Medium) - Question 2

It is used for making bottles, utensils, films, wires, and many other useful products.

1 Crore+ students have signed up on EduRev. Have you? Download the App
Test: Synthetic Fibres And Plastics (Medium) - Question 3
Save

Which type of cloth dries faster in the rainy season?

Detailed Solution for Test: Synthetic Fibres And Plastics (Medium) - Question 3
Synthetic fibres like polyesters dry up quickly.

Test: Synthetic Fibres And Plastics (Medium) - Question 4
Save

Rayon blended in wool will result in
Detailed Solution for Test: Synthetic Fibres And Plastics (Medium) - Question 4
Rayon is a synthetic fibre that is breathable and drapes well. A rayon/cotton blend is common. Rayon lends a silky feel and appearance to the blend but like cotton, it's prone to creases. Still, rayon wrinkles less than cotton which adds benefit to the fabric blend.

Test: Synthetic Fibres And Plastics (Medium) - Question 5
Save

Define Plasticity:
Detailed Solution for Test: Synthetic Fibres And Plastics (Medium) - Question 5
Plasticity, the ability of certain solids to flow or to change shape permanently when subjected to stresses of intermediate magnitude between those producing temporary deformation, or elastic behavior, and those causing failure of the material, or rupture.

Test: Synthetic Fibres And Plastics (Medium) - Question 6
Save

Which of the following statements is true about thermosetting plastic?
Detailed Solution for Test: Synthetic Fibres And Plastics (Medium) - Question 6
Thermosetting plastics contain polymers that cross-link together during the curing process to form an irreversible chemical bond. It can't be recycled. The cross-linking process eliminates the risk of the product remelting when the heat is applied, making thermosetting ideal for high-heat applications such as electronics and appliances.

Test: Synthetic Fibres And Plastics (Medium) - Question 7
Save

Animal fibres are made of:
Detailed Solution for Test: Synthetic Fibres And Plastics (Medium) - Question 7

Protein, animal fibers are natural fibers that consist largely of particular proteins. Instances are silk, hair/fur (including wool) and feathers. The animal fibres used most commonly both in the manufacturing world as well as by the hand spinners are wool from domestic sheep and silk.

Test: Synthetic Fibres And Plastics (Medium) - Question 8
Save

Which of the following items cannot be recycled?
Detailed Solution for Test: Synthetic Fibres And Plastics (Medium) - Question 8
Plastic containers are relatively dense and compact which enables them to be easily sorted mechanically, into the different types of plastics. Plastic film and bags are not easily mechanically sorted making them very costly to sort. Also, recycling such plastic is an expensive process.

Test: Synthetic Fibres And Plastics (Medium) - Question 9
Save

Electrical wires have a coating of insulating material. The material generally used for insulation is:
Detailed Solution for Test: Synthetic Fibres And Plastics (Medium) - Question 9

PVC is an insulator and prevents electricity to be conducted outside the wire so that electric shock can be prevented.

Test: Synthetic Fibres And Plastics (Medium) - Question 10
Save

Containers that are lightweight, lower price, good strength, and easy to handle is made up of:
Detailed Solution for Test: Synthetic Fibres And Plastics (Medium) - Question 10
Plastic has lightweight, lower price, good strength, and easy to handle. Therefore, the container is made from plastic.

Test: Synthetic Fibres And Plastics (Medium) - Question 11
Save

Which of the following statements is incorrect?
Detailed Solution for Test: Synthetic Fibres And Plastics (Medium) - Question 11
Nylon: A synthetic material, nylon isn't anything but a cool fabric to weather in the summer as it's specifically designed to repel water.

Test: Synthetic Fibres And Plastics (Medium) - Question 12
Save

The general formula of alkynes is ...............
Detailed Solution for Test: Synthetic Fibres And Plastics (Medium) - Question 12
The general formula for alkynes is CnH2n-2. Acetylene is the simplest alkyne with the formula as C2H2.

Test: Synthetic Fibres And Plastics (Medium) - Question 13
Save

Rayon or artificial silk is obtained from:
Detailed Solution for Test: Synthetic Fibres And Plastics (Medium) - Question 13
Although rayon is obtained from a natural source of wood pulp, yet it is a man-made fiber.

Test: Synthetic Fibres And Plastics (Medium) - Question 14
Save

We come to a conclusion, that plastics are bad conductors of electricity from the followings:
Detailed Solution for Test: Synthetic Fibres And Plastics (Medium) - Question 14
Plastic does not allow electricity to pass through it thus is called bad conductors of electricity and can be used as insulators.

Test: Synthetic Fibres And Plastics (Medium) - Question 15
Save

Nylon is obtained by:
Detailed Solution for Test: Synthetic Fibres And Plastics (Medium) - Question 15
Nylon was first commercially synthesized fibre. The production of nylon was started almost simultaneously in New York and London, thus it got its name (NY for New York and Lon for London) as nylon. Nylon is synthesized from coal, water and air. Fibre of nylon is very strong and it also resembles silk.

Test: Synthetic Fibres And Plastics (Medium) - Question 16
Save

Name the fibres which are made by human beings.
Detailed Solution for Test: Synthetic Fibres And Plastics (Medium) - Question 16
Synthetic fibres are made by human beings. Example – Rayon, nylon, etc.

Test: Synthetic Fibres And Plastics (Medium) - Question 17
Save

When a small unit combines to form a large single unit then it is called __________.
Detailed Solution for Test: Synthetic Fibres And Plastics (Medium) - Question 17
A synthetic fibre is also a chain of small units joined together. Each small unit is actually a chemical substance. Many such small units combine to form a large single unit called a polymer. Example: Nylon, polythene, Teflon, etc.

Test: Synthetic Fibres And Plastics (Medium) - Question 18
Save

Synthetic fibres are also known as ____________.
Detailed Solution for Test: Synthetic Fibres And Plastics (Medium) - Question 18

Synthetic fibres are also called man-made or artificial fibres.

Test: Synthetic Fibres And Plastics (Medium) - Question 19
Save

Name the fibre, having properties similar to that of silk.
Detailed Solution for Test: Synthetic Fibres And Plastics (Medium) - Question 19
Rayon has properties similar to silk and is therefore called artificial or synthetic fibre.

Test: Synthetic Fibres And Plastics (Medium) - Question 20
Save

___________ is used for making parachutes and ropes for rock climbing.
Detailed Solution for Test: Synthetic Fibres And Plastics (Medium) - Question 20
Nylon fibre is used in making ropes for rock climbing and parachutes because it is a very strong fibre.

18 videos|34 docs|19 tests
Join Course
Information about Test: Synthetic Fibres And Plastics (Medium) Page
In this test you can find the Exam questions for Test: Synthetic Fibres And Plastics (Medium) solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Synthetic Fibres And Plastics (Medium), EduRev gives you an ample number of Online tests for practice

Top Courses for Class 7

Download as PDF

Top Courses for Class 7

Important Questions for Synthetic Fibres And Plastics (Medium)

Find all the important questions for Synthetic Fibres And Plastics (Medium) at EduRev.Get fully prepared for Synthetic Fibres And Plastics (Medium) with EduRev's comprehensive question bank and test resources. Our platform offers a diverse range of question papers covering various topics within the Synthetic Fibres And Plastics (Medium) syllabus. Whether you need to review specific subjects or assess your overall readiness, EduRev has you covered. The questions are designed to challenge you and help you gain confidence in tackling the actual exam. Maximize your chances of success by utilizing EduRev's extensive collection of Synthetic Fibres And Plastics (Medium) resources.

Synthetic Fibres And Plastics (Medium) MCQs with Answers

Prepare for the Synthetic Fibres And Plastics (Medium) within the Class 7 exam with comprehensive MCQs and answers at EduRev. Our platform offers a wide range of practice papers, question papers, and mock tests to familiarize you with the exam pattern and syllabus. Access the best books, study materials, and notes curated by toppers to enhance your preparation. Stay updated with the exam date and receive expert preparation tips and paper analysis. Visit EduRev's official website today and access a wealth of videos and coaching resources to excel in your exam.

Online Tests for Synthetic Fibres And Plastics (Medium) Advance Learner Course: Science Class 7

Practice with a wide array of question papers that follow the exam pattern and syllabus. Our platform offers a user-friendly interface, allowing you to track your progress and identify areas for improvement. Access detailed solutions and explanations for each test to enhance your understanding of concepts. With EduRev's Online Tests, you can build confidence, boost your performance, and ace Synthetic Fibres And Plastics (Medium) with ease. Join thousands of successful students who have benefited from our trusted online resources.
© EduRev
Education Revolution
Follow Us
Signup to see your scores go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup