Casting Mechanism Solidification Online Exam Quiz
Casting Mechanism Solidification GK Quiz. Question and Answers related to Casting Mechanism Solidification. MCQ (Multiple Choice Questions with answers about Casting Mechanism Solidification
Which of the following characteristics is mainly considered for the solidification of castings?
Options
A : Appearance
B : Crystal structure
C : Moulding capacity
D : Surface finish
Which of the following types of crystal are formed near the mould face during solidification?
Options
A : Big crystals with random orientation
B : Small crystals with systematic orientation
C : Small crystals with random orientation
D : Big crystals with systematic orientation
Which of the following parts can be used to have uniform crystallization at all over the points in the casting material?
Options
A : Chaplets
B : Biscuit
C : Chills
D : Core
Which of the following factors is independent to the direction of crystal growth in an alloy?
Options
A : Thermal gradient
B : Composition gradient
C : Variation of solidus temperature
D : Material aesthetics
A dendritic crystal growth structure is formed by the difference in progress of crystallization at different points in the casting material.
Options
A : True
B : False
C :
D :
A proper care should be taken while cooling or solidification of castings to avoid defect formation.
Options
A : True
B : False
C :
D :
An alloy, unlike a pure metal, does not have a sharply defined freezing temperature.
Options
A : True
B : False
C :
D :
Rapid heat extraction from the casting causes narrowing of liquid-solid zone which sweeps itself across the molten metal.
Options
A : True
B : False
C :
D :
As the solidification progresses gradually inwards, small crystals with systematic orientation are formed.
Options
A : True
B : False
C :
D :
In the case of pure metals, liquid metal should be cooled above their freezing points.
Options
A : True
B : False
C :
D :
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