MCQs on Plastic Moulding with Answer

MCQs on Plastic Moulding

1. The bottles from thermo-plastic materials are made by ___________.

(i) Compression moulding 

(ii) Extrusion 

(iii) Injection moulding 

(iv) Blow moulding

2. The long plastic rods and tubes are produced by _____________.

(i) Compression moulding 

(ii) Extrusion 

(iii) Injection moulding 

(iv) Blow moulding

3. The process of producing thin sheets by squeezing a thermo plastic material between revolving cylinders is known as ____________.

(i) Transfer moulding 

(ii) Injection moulding 

(iii) Blow moulding 

(iv) Calendering

4. The process of producing plastic components is moulds without the application of pressure is known as _____________.

(i) Moulding 

(ii) Laminating 

(iii) Calendering 

(iv) Casting

5. Which one of the following is the most common polymer type in fiber-reinforced polymer composites ___________?

(i) Elastomers 

(ii) Thermoplastics 

(iii) Thermosets 

(iv) Both Elastomers & Thermoplastics

6. Which of the following is incorrect regarding compression moulding?

(i) Mould is simple & easy to manufacture 

(ii) No wastage of raw material 

(iii) Dimensional accuracy & surface finish of products are good 

(iv) Suitable for products with intricate shapes

7. Identify the product that can be not made by compression moulding process.

(i) Automotive panels 

(ii) Washing machine housing 

(iii) Bottles 

(iv) Gaskets

8. Generally the plastics are processes in ___________ stages.

(i) One 

(ii) Two 

(iii) Three 

(iv) Four

9. In compression moulding the curing time is ___________.

(i) Less 

(ii) Moderate 

(iii) More 

(iv) None

10. During transfer moulding, plastic material is transferred into a chamber called ___________.

(i) Sprue 

(ii) Pot 

(iii) Mould cavity 

(iv) None

Answers: 1.(iv); 2.(ii); 3.(iv); 4.(iv); 5.(iii); 6.(iv); 7.(iii); 8.(iii); 9.(i); 10.(iii).