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injection moulding - excercise

Authored by ROKIAH ROKIAH

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injection moulding - excercise
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110 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Media Image

What is the defect called?

weld line

jetting

flow marks

sink marks

2.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Media Image

What is the defect called?

Flashing

Sink Mark

Weld Line

Short shots

3.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Which sequence of injection moulding process is CORRECT?

Melting, cooling, injecting, ejecting

Injecting, Melting, Cooling, Ejecting

Ejecting, Cooling, Injecting, Melting

Melting, Injecting, Cooling, Ejecting

4.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Shrinkage of the plastic parts in mould cavity can results in generation of sink holes in the plastic.

True

False

5.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

what are important parameters of compression molding

mold heating rate

mold cooling rate

max. applicable pressure

All of above

6.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Nyatakan kaedah pemeriksaan kualiti yang digunakan untuk menentukan pencapaian kualiti pada sesuatu barang ataupun perkhidmatan?

5S

4M

PDCA

5W & 1H

7.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Jenis plastik yang terbaik digunakan sebagai wadah makanan adalah….

PS

PP

PVC

PE

PET

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