
injection moulding - excercise
Authored by ROKIAH ROKIAH
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University
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110 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What is the defect called?
weld line
jetting
flow marks
sink marks
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
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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