Casting - Vacuum Die Casting MCQs : This section focuses on the "Casting - Vacuum Die Casting". These Multiple Choice Questions (MCQs) should be practiced to improve the Casting - Vacuum Die Casting skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.
Question 1
In vacuum die casting, the molten metal does not experience any back pressure while injecting it into the die cavity.
A. TRUE
B. FALSE
Question 2
In vacuum die casting, the molten metal enters into the cavity slowly as compared to the die casting.
A. TRUE
B. FALSE
Question 3
Overflows should be avoided as much as possible in the designing of a die.
A. TRUE
B. FALSE
Question 4
Rapid solidification rates of casting tend to have a reduction in oxidation of the material.
A. TRUE
B. FALSE
Question 5
Short cycle time leads to having a high temperature of the dies in the vacuum die casting.
A. TRUE
B. FALSE
Question 6
The castings made by vacuum die casting have more strength than the castings made by die casting.
A. TRUE
B. FALSE
Question 7
The moving cores are used in the vacuum die casting, which are parallel to the movement of a die.
A. TRUE
B. FALSE
Question 8
Which of the following helps in reducing the oxidation of the material in vacuum die casting?
A. Mould thickness
B. Mould material
C. Tight tolerances
D. Mould coating
Question 9
Which of the following helps in removing of casting from the ejector die?
A. Tie bar
B. Plunger
C. Platen
D. Ejector pins
Question 10
Which of the following is used to remove the metal defect of cold shuts from the casting?
A. Ejector pins
B. Overflows
C. Metal cores
D. Biscuit/Sprue
Question 11
Which of the following parts is fixed to the stationary platen of the casting machine?
A. Cover die
B. Ejector die
C. Sprue
D. Runner
Question 12
Which of the following problems arises in die casting that can be solved by having vacuum die casting?
A. Overheating
B. Interruption in progressive solidification
C. Air in the cavity
D. Difficulty in cooling of casting