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L2 - CU4 INJECTION MOULDING MOULD SET-UP

Total questions: 84

Worksheet time: 45mins

Name
Class
Date
1.

Berikut adalah beberapa perkara yang perlu dikenalpasti sebelum mengoperasikan mesin kecuali ?

a)

Kapasiti mesin

b)

Tonnage mesin

c)

Platen mesin

d)

Barrel

2.

"Acuan pada mesin pengacuan suntikan boleh diikat sama ada dalam kedudukan mendatar atau menegak"


Pernyataan berikut adalah ?

a)

Tonnage mesin

b)

Kapasiti mesin

c)

Platen mesin

3.

Apakah itu core puller ?

a)

satu alat penarik yang terdapat pada bahagian core (moving side)

b)

sistem perlentingan yang terdapat pada acuan.

c)

adalah jarak acuan antara bahagian acuan bergerak (moving) dan bahagian pegun (stationary).

4.

Berapakah alat yang ada pada mesin perlu diperiksa kerana untuk memastikan alatan tersebut bersedia untuk dioperasikan ?

a)

2

b)

4

c)

6

d)

8

5.

Locating Ring ada dimana ?

a)

Acuan

b)

Mesin

6.

Dimanakah lokasi pelenting?

a)

Acuan

b)

Mesin

7.

Berapakah Peranti keselamatan mesin suntikan plastik ?

a)

1

b)

2

c)

3

d)

4

8.
a)

Peranti keselamatan hidraulik

b)

Peranti keselamatan elektrikal

c)

Peranti keselamatan mekanikal

9.

Apakah fungsi pengesan?

a)

untuk mengesan kehadiran sesuatu objek atau status sesuatu proses bagi membolehkan sistem kawalan tersebut bertindak mengawal (monitoring) sistem tersebut samada yang separa atau sepenuhnya automatik

b)

Jika pintu keselamatan mesin dibuka ketika acuan sedang dikendali, palang keselamatan (safety bar) yang bergerak akan disekat dan secara automatik acuan akan berhenti dengan serta merta (semasa proses acuan tutup).

10.

Berikut adalah dua (2) jenis pengesan kecuali ?

a)

Penderia sesentuh

b)

Peranti keselamatan hidraulik

c)

Penderia tidak bersentuh

11.

Berikut adalah tabiat baik di bengkel KECUALI

a)

Utamakan kebersihan pada setiap waktu

b)

Sikap bertanggungjawab

c)

Berpuas hati dengan hasil kerja

d)

Gopoh semasa melakukan kerja amali

12.

Berikut contoh alat perlindungan telinga KECUALI:

a)
b)
c)
d)
13.

apakah yang dimaksudkan dengan parting line ?

a)

garis pemisah pada bahagian plastik

b)

garisan lubang tembus

c)

garisan lebihan plastik

d)

garisan unjuran

14.

Dibahagian manakah resin plastik dimasukkan?

a)

Barrel

b)

Hopper

c)

Screw

d)

Nozzle

15.

Dibahagian manakah resin plastik dimasukkan?

a)

Barrel

b)

Hopper

c)

Screw

d)

Nozzle

16.

"Digunakan untuk mengikat acuan pada mesin dan terletak di bahagian bawah acuan"


Fungsi diatas huraian untuk komponen ?

a)

Spacer Block

b)

Ejector Pin

c)

Bottom Plate

d)

Core Plate

17.

Berikut adalah 4 jenis Multiplate mould KECUALI ?

a)

Three plate

b)

Stack mould

c)

Multi stage Opening

d)

Two plate mould

18.

Gambar berikut adalah ?

a)

pallet trucks

b)

mobile lifter lift table

19.

Clamping unit dalam bahasa melayu ?

a)

unit pengapitan

b)

unit suntikan

20.

Material yang telah cair akan disuntik keluar melalui ?

a)

Barrel

b)

Nozzel

c)

Heater band

21.

Tekak Suapan (Feed Throat) ialah ?

a)

Semua kawalan mesin dikawal disini

b)

Menyuntik dan mengaul leburan material

c)

Tempat resin dimasukkan.

d)

Laluan resin untuk masuk ke barel.

22.

Ia merupakan gabungan antara skru dan plunger adalah unit suntikan jenis ?

a)

Single Stage Plunger Unit

b)

Two Stage Screw Plunger Unit

c)

In Line Screw Reciprocating Unit

23.

Togel ada berapa jenis ?

a)

4

b)

3

c)

2

d)

1

24.
a)

Single Toggle

b)

Double Toggle

25.

apakah yang bertanda x ?

a)

Masa Tekanan

Pegangan /

Menunggu

b)

Masa Tekanan

Pegangan/

Suntikan (Injection)

26.

Tenaga = Tekanan x luas permukaan.

a)

F = P x A

b)

P = F x A

c)

A = P x F

27.

kitaran asas proses pengeluaran ada berapa?

a)

7

b)

5

c)

6

d)

3

28.

semasa proses pengambilan leburan semula, keadaan skru berpusing atau tidak ?

a)

berpusing

b)

tidak berpusing

29.

semasa leburan di suntik kedalam acuan, keadaan skru berpusing atau tidak ?

a)

berpusing

b)

tidak berpusing

30.

"Leburan akan mengecut semasa ia sejuk"


ia merujuk kepada ?

a)

Masa Tekanan Pegangan/Menunggu (Holding Time)

b)

Suntikan (Injection)

c)

Penyejukkan (Cooling)

d)

Pengambilan Semula (Refilling)

31.

apakah yang bertanda x ?

a)

Masa Tekanan

Pegangan /

Menunggu

b)

Masa Tekanan

Pegangan/

Suntikan (Injection)

32.

Berikut adalah operasi untuk pengendalian mesin injection moulding, kecuali ?

a)

Manual

b)

Semi manual

c)

Semi automatik

d)

Automatik

33.

"sesuai digunakan apabila acuan three plate digunakan"


berikut sesuai untuk operasi pengedalian mesin jenis ?

a)

Manual

b)

Semi Automatik

c)

Automatik

34.

Apakah kegunaan heater band?

a)

Memanaskan barel agar material plastik dapat dileburkan.

b)

Material yang telah cair akan disuntik keluar

c)

Tempat material dicairkan

d)

Menyuntik dan mengaul leburan material

35.

Bahagian cetakan produk yang memberikan bentuk adalah:

a)

Core

b)

Cavity

c)

Runner

d)

Sprue

36.

Berikut adalah jenis-jenis peralatan tangan memasang mould, kecuali

a)

Gandin getah

b)

Pemahat kayu

c)

Sepana gabung

d)

Sepana hujung terbuka

37.

Terdapat 2 bahagian sisi iaitu core dan cavity. Apakah jenis mould yang dimaksudkan?

a)

Two plate mould

b)

Three plate mould

c)

Split mould advance

d)

Hot runner moulding

38.

Apakah fungsi mould dalam pengacuanan suntikan plastik?

a)

Untuk memproses acuan

b)

Untuk lentingan produk keluar

c)

Untuk menghasilkan bentuk produk

d)

Untuk selenggara jangka hayat mould

39.

Rajah menunjukkan bahagian Mesin Cetakan Suntikan. Namakan bahagian "?".

a)

Compression unit

b)

Mold Unit

c)

Ejection Unit

d)

Heating Unit

40.

sling apakah ini?

a)

Rope slings

b)

Wire slings

41.

The 2 principal components of an injection moulding machine are...

a)

Injection unit and the Mold Clamping unit

b)

Injection unit and the Blowing unit

c)

Compression unit and the Blowing unit

d)

Injection unit and the Compression unit

42.

Figure shows a section of a Injection Molding Machine. Name the "?" part.

a)

Compression unit

b)

Mold Unit

c)

Ejection Unit

d)

Heating Unit

43.

Which of the following is not the Mould distribution channel.

a)

Sprue

b)

Gate

c)

Runner

d)

Vent

44.

What is the defect called?

a)

Flashing

b)

Sink Mark

c)

Weld Line

d)

Short shots

45.

What is the name of the part that holds the plastic powder?

a)

Heater

b)

Plastic granules

c)

Hopper

d)

Screw

46.

What is the defect called?

a)

weld line

b)

jetting

c)

flow marks

d)

sink marks

47.

Which sequence of injection moulding process is CORRECT?

a)

Melting, cooling, injecting, ejecting

b)

Injecting, Melting, Cooling, Ejecting

c)

Ejecting, Cooling, Injecting, Melting

d)

Melting, Injecting, Cooling, Ejecting

48.

Which of the following is NOT the component in Injection Moulding Machine?

a)

Injection Ram

b)

Mould

c)

Clamp

d)

Resin

49.

Define function of Mould.

a)

Conveys or moves the resin to the confined chamber or mould

b)

Forming of the material into a specific shape

c)

Place to introduce resin into the injection moulding machine

d)

Melted the resin by  thermal energy from the heaters that surround the barrel

50.

Check valves are used on all machines to provide a way to:

a)

Connect the molding machine to the mold

b)

Stop the material from flowing over the screw during injection

c)

Positively shut off the material to prevent drooling

d)

None of the above

51.

The function of the reciprocating screw is to:

a)

Plasticize or melt the plastic material.

b)

Convey the material to the front of the screw.

c)

Force the melted material into the mold.

d)

All of the above

52.

Q1. The purpose of preheating of Preforms is to ________.

a)

reduce weight

b)

increase hardness

c)

remove moisture

d)

heat fast

53.

Q2. In compression moulding the mould temperature ranges from _________.

a)

100-250˚C

b)

130-350˚C

c)

120-250˚C

d)

115-280˚C

54.

This final cure time for a very small thin walled part in compression moulding is as low as _____________.

a)

10sec

b)

20sec

c)

30sec

d)

40sec

55.

The process of heating and compressing the preform material in to the mould is ___________.

a)

Blow moulding

b)

Transfer moulding

c)

Injection moulding

d)

Compression moulding

56.

In compression moulds, polymerization of plastic takes place in _____________.

a)

machine

b)

mould

c)

material

d)

hopper

57.

The plastic used in compression molding is __________.

a)

thermoset plastic

b)

thermo plastic

c)

PMMA

d)

PVC

58.

Thermoset Plastic parts are manufactured by __________ process.

a)

Compression moulding

b)

Blow moulding

c)

Rotational moulding

d)

Extrusion

59.

In Compression mould the entrapped air is released by _____________.

a)

hand

b)

degassing

c)

hole

d)

compressure

60.

------------ is a binder or polymer material which holds the different constituents together.

a)

Plasticizer

b)

Resin

c)

Pigments

d)

Fillers

61.

-------------- method is applicable mainly to the thermoplastic resins.

a)

Compression moulding

b)

Injection moulding

c)

Blow moulding

d)

Extrusion moulding

62.

IS IT MADE OF.....?

a)

WOOD

b)

GLASS

c)

METAL

d)

PLASTIC

63.

IS IT MADE OF....?

a)

PLASTIC

b)

WOOD

c)

GLASS

d)

METAL

64.

IS IT MADE OF....?

a)

PLASTIC

b)

WOOD

c)

METAL

d)

GLASS

65.

IS IT MADE OF...?

a)

PLASTIC

b)

GLASS

c)

WOOD

d)

METAL

66.

IS IT MADE OF...?

a)

WOOD

b)

METAL

c)

GLASS

d)

PLASTIC

67.

IS IT MADE OF...?

a)

PLASTIC

b)

WOOD

c)

METAL

d)

GLASS

68.

IS IT MADE OF...?

a)

METAL

b)

PLASTIC

c)

WOOD

d)

GLASS

69.

IS IT MADE OF...?

a)

GLASS

b)

WOOD

c)

METAL

d)

PLASTIC

70.

IS IT MADE OF...?

a)

GLASS

b)

WOOD

c)

METAL

d)

PLASTIC

71.
What is the difference between a natural and synthetic material?
a)
Natural material is made from chemicals and synthetic is made from nature
b)
Natural material is made directly from nature and synthetic material is made from chemicals
c)
Natural material is made from petroleum and synthetic material is made from wool
d)
Natural material is made from trees and synthetic materials are made from plastics
72.
What are some advantages of synthetic materials?
a)
Cheaper to manufacture 
b)
Stronger than similar products made from natural material
c)
Often better quality 
d)
All of the above
73.

What is a synthetic material?

a)

Any material that is man made

b)

Any material that is only made from natural resources

c)

Any material that is made of recycled materials

d)

Any material that is found in nature.

74.

A _____________________ is a natural resource that we can replace faster than we use it up.

a)

renewable resource

b)

nonrenewable resource

c)

synthetic material

d)

made made product

75.
Which is NOT a type of renewable resource?
a)
Petroleum
b)
Hydroelectric
c)
Wind power
d)
Solar power
76.
What word means "manufactured in a lab or chemical plant"?
a)
macromolecular
b)
alloy
c)
synthetic
d)
ceramic
77.

Which of the following is an example of a natural material?

a)

plastic

b)

nylon

c)

syngas

d)

cotton

78.

Read the following statements. Select each answer choice that is a true statement about synthetic materials. Please select 4 answers.

a)

Synthetic materials are made from natural resources

b)

Synthetic materials are made by chemically changing natural resouces to create a material with different characteristics.

c)

Some examples of synthetic materials are plastics, medicines, and new fuels.

d)

A synthetic substance cannot be chemically identical to a naturally-occurring substance

e)

Making and using synthetic materials have both positive and negative impacts on society.

79.

things, materials, substances and components found in the natural environment

a)

synthetic materials

b)

natural resources

c)

artifical resources

d)

pure resourses

80.

natural gas and crude oil are

a)

renewable resources

b)

synthetic products

c)

fossil fuels

d)

infinite fuels

81.
What are synthetic materials mostly made from?
a)
Coal
b)
Chemicals
c)
Trees
d)
Gasoline
82.

Which of the following is NOT a natural resource?

a)

wood

b)

cotton

c)

oil

d)

plastic

e)

coal

83.

Which of the following is NOT a synthetic material?

a)

Nylon

b)

plastic

c)

paper

d)

polyester

84.

Both synthetic materials and natural materials are made from _________________?

a)

natural resources

b)

nonrenewable resources

c)

plastic

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