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Plastic Injection Moulding Quiz

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

Blow moulding …………………… to make bottles.

a)

using

b)

to use

c)

used

d)

is used

2.

An injection molding machine has three basic ……………………..: the injection unit, the mold, and the clamping system.

a)

compose

b)

composed

c)

component

d)

components

3.

Toys and bowls ……………… by injection moulding.

a)

are made

b)

made

c)

to make

d)

making

4.

The clamping system closes and ……………. the mold.

a)

opens

b)

opening

c)

opened

d)

to open

5.

Thermoplastics ………………..by extrusion.

a)

shaped

b)

can be shaped

c)

can shaped

d)

to shape

6.

Molten plastic ……………….. through a shaped hole or die.

a)

forcing

b)

forced

c)

to force

d)

is forced

7.

The process includes the ………………. or forcing heated molten plastic into a mold which is in the form of the part to be made.

a)

inject

b)

injecting

c)

injected

d)

to inject

8.

The mold is mounted on …………………………… plate and usually guided by four tie-bars.

a)

support

b)

to support

c)

supporting

d)

supported

9.

When materials are heated and then ………………… in a mold, they can be formed into different shapes.

a)

pressure

b)

pressured

c)

pressures

d)

to pressure

10.

Plastic injection moulding is the most common method of ………………… parts made of plastic.

a)

producing

b)

to produce

c)

produced

d)

produce

11.

The mold is the space where the plastics are filled, …………. And cooled down to make the product.

a)

formed

b)

form

c)

to form

d)

forming

12.

Fibres for textile or sheet plastic …………………… by extrustion.

a)

may be made

b)

may made

c)

to make

d)

making

13.

Injection unit ………………………. a screw or a plunger.

a)

contained

b)

containing

c)

contain

d)

contains

14.

An injection molding machine has some basic components : …………………

a)

the injection unit

b)

the mold

c)

the clamping system

d)

All are correct

15.

The injection unit, also called……………….., prepares the proper plastic melt and, via the injection unit, transfers the melt into the next component that is the mold.

a)

the insulator

b)

the conductor

c)

the plasticator

d)

the computer

16.

The mold ……………………… on supporting plate and usually guided by four tie-bars.

a)

mount

b)

is mounted

c)

to mount

d)

mounting

17.

The clamps provide ………………. controlled motion and force to close and open the mold.

a)

accurate

b)

accurately

c)

provide

d)

control

18.

Thermoplastic chips ………… first ………………. unit they melt and then forced into a water-cooled mould under pressure.

a)

to/heat

b)

is/heated

c)

are/heated

d)

are/heating

19.

In this process air………………… into a blob of molten plastic inside a hollow mould.

a)

to blow

b)

is blown

c)

blow

d)

blowing

20.

The injection molding ……………… is capable of producing an infinite variety of part designs containing and equally infinite variety of details such as threads.

a)

to process

b)

processes

c)

process

d)

processed