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Foundry Forging
Foundry Assessment
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Q.1
The pressure is obtained by which of the following methods in pressure die castings?
a) Mechanical
b) Hydraulic
c) Pneumatic
d) Electromagnetic
Q.2
Gooseneck injection type mechanism is ___________ chamber mechanism.
a) Hot
b) Cold
c) Temperature Independent
d) Room temperature
Q.3
The pressure is maintained in the mould till the casting is solidified.
a) True
b) False
Q.4
The Gooseneck mechanism is more efficient than the plunger mechanism.
a) True
b) False
Q.5
In hot chamber machine, the melting unit constitutes and integral part.
a) True
b) False
Q.6
Air injection processes can be used for __________
a) Iron
b) Scandium
c) Zinc
d) Argon
Q.7
__________ are useful in cold chamber machines.
a) Riser
b) Gates
c) Ladles
d) Shell
Q.8
______________ pressure is recommended in the cold chamber process.
a) High
b) Low
c) Medium
d) Room temperature
Q.9
Low melting point alloys can be cast in the cold chamber pressure die casting.
a) True
b) False
Q.10
Pressure die casting is used for high volume production because ____________
a) High maintenance
b) Costly machinery
c) Complex dies
d) All of the mentioned
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