Multiple Choice Questions on Basic Science-Chemistry Set-3
MCQ on Paints, Varnishes, Insulators, Polymer, Adhesives and Lubricants
1. Paint should provide resistance to
- Corrosion
- Sound
- Heat
- Warping
Answer : A
2. he value of resistance in insulators is
- small
- large
- zero
- can not be determined
Answer : B
3. Insulators can be easily charged by
- supplying electrons
- Electromotive force (EMF)
- friction
- protons
Answer : C
4. Polymer formation from monomer starts by
- condensation reaction between monomers
- coordinate reaction between monomers
- conversion of monomer to monomer ions by protons
- hydrolysis of monomers
Answer : A
5. What is a vehicle in paint used for?
- To obscure surface
- To adhere to surface
- To provide shine to surface
- To reduce crack on surface
Answer : B
6. In addition polymer monomer used is
- unsaturated compounds
- saturated compounds
- bifunctional saturated compounds
- trifunctional saturated compounds
Answer : A
7. What is the property of insulating materials?
- Prevents the unwanted flow of current
- Allows the unwanted flow of current
- Increases the unwanted flow of current
- Decreases the unwanted flow of current
Answer : A
8. Which of the below is a characteristic of an ideal paint?
- Health of the worker is unaffected
- Costly
- Pleasant smell
- Dries rapidly
Answer : A
9. On the basis of mode of formation polymers can be classified as ........
- addition polymers only
- condensation polymers only
- copolymers
- addition and condensation polymers
Answer : A
10. Current can not flow through an insulator because they have
- no free electrons
- free electrons
- no free protons
- free neutrons
Answer : A
11. Which of the below adhesive is not attacked by water?
- Starch glue
- Albumin glue
- Vegetable glue
- Rubber glue
Answer : B
12. Adhesive becomes strong immediately after its application.
Answer : B
13. The induced charge on insulators
- resides on surface
- move inside
- change into electric current
- moves outwards
Answer : A
14. Lubricant act as a coolant to carry away heat
Answer : A
15. The word adhesive has its origin from
- Greek Adhaerere
- Latin Adheraes
- Greek Adherae
- Latin Adhaerere
Answer : D
16. On increasing the lubrication, the efficiency of the machine __________
- Increases
- Decreases
- Remain same
- Does not get affected
Answer : A
17. Nylon threads are made of
- polyester polymer
- polyamide polymer
- polyethylene polymer
- polyvinyl polymer
Answer : B
18.The process of applying an adhesive is
- Speedy
- Slow
- Costly
- Cumbersome
Answer : A
19. Epoxy adhesives are used in the manufacturing of
- Glass
- Fabric
- Plywood
- Plastic
Answer : C
20. Lubrication is necessary to protect wear and tear caused due to________
- Electrostatic force
- Gravitational force
- Frictional force
- Magnetic force
Answer : C