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QUIZ MRC UNIT 3 PREMIX & PREPREG

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

What is the process shown in the figure?

a)

Dough Moulding Compound

b)

Sheet Molding Compound

c)

Prepreg

d)

CSM process

2.

All the below are characteristic of SMC EXCEPT:

a)

Highly crosslink

b)

More expensive than metal

c)

Have unidirectional form (UD)

d)

Suitable for Compression Molding

3.

A prepreg consists of a combination of a matrix (or resin) and fibre reinforcement.

a)

Yes

b)

No

4.

C-Stage material requires cold storage to prevent complete curing.

a)

Yes

b)

No

5.

What is the picture shown?

a)

CSM

b)

Carbon black

c)

Unidirectional Prepreg

d)

Kevlar

6.

What is benefits of Prepregs?


I) Ease of use

II) Control of fibre volume fraction

III) Clean process

IV) High void content

a)

I and II

b)

I, II and III

c)

I, II and IV

d)

I, II, III and IV

7.

All below is properties of prepreg EXCEPT:

a)

Volatile-free at normal room temperature.

b)

Prepreg is covered on both sides by protective coverings

c)

Leak-free and spillage free.

d)

Need to mix with wet resin

8.

What type of premix shown in figure?

a)

Sheet Molding Compound

b)

Dough Molding Compound

c)

Prepreg

d)

Gelcoat mixing

9.

DMC finds large application in items such as electrical parts and housings

a)

Yes

b)

No

10.

All below is premix type EXCEPT:

a)

SMC

b)

DMC / BMC

c)

Prepreg

d)

Wet Layup

11.

SMC is a combination of chopped glass strands and filled polyester resin, in the form of a sheet.

a)

Yes

b)

No

12.

Prepreg/premix contains all the components needed for moulding the final part:


I) Resin

II) Reinforcement

III) Filler

IV) Catalyst

a)

I and II

b)

I, II and III

c)

I, II and IV

d)

I, II, III and IV

13.

A prepreg consists of a combination of a matrix (or resin) and fibre reinforcement. It is ready to use in the component manufacturing process.

a)

Yes

b)

No

14.

UNIDIRECTIONAL (UD) form is a several direction of reinforcement

a)

Yes

b)

No

15.

Why we need to use Prepreg?


I) Durable

II) Temperature resistant

III) Good stiffness

IV) Lighweight

a)

I and II

b)

I, II and III

c)

I, II and IV

d)

I, II, III and IV