Virtual Labs

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Theory

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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Contributors

Feedback

To study and observe various stages of casting through demonstration of sand casting process

Choose difficulty:

Beginner

Intermediate

Advanced

What is the purpose of a sprue base in a gating system? (LO2)

a: To store excess molten metal Explanation

Explanation

b: To reduce the velocity of falling metal Explanation

Explanation

c: To prevent turbulence in the mould cavity Explanation

Explanation

d: Both b and c Explanation

Explanation

What is the function of a riser in sand casting? (LO2)

a: To trap impurities in the metal Explanation

Explanation

b: To increase the mould’s strength Explanation

Explanation

c: To supply additional molten metal to compensate for shrinkage Explanation

Explanation

d: To act as a vent for escaping gases Explanation

Explanation

What is the final step in the sand-casting process before the casting is used? (LO3)

a: Removing the casting from the mould Explanation

Explanation

b: Heat treatment and surface finishing Explanation

Explanation

c: Shaking out excess sand Explanation

Explanation

d: Cooling the molten metal Explanation

Explanation

What is the purpose of vents in a sand mould? (LO2)

a: To allow gases to escape from the mould cavity Explanation

Explanation

b: To increase the cooling rate of molten metal Explanation

Explanation

c: To improve the surface finish of the casting Explanation

Explanation

d: To strengthen the mould Explanation

Explanation

What is the primary purpose of a gating system in sand casting? (LO2)

a: To regulate the flow of molten metal into the mould cavity Explanation

Explanation

b: To cool the metal before it enters the mould Explanation

Explanation

c: To trap impurities and prevent them from entering the mould Explanation

Explanation

d: To increase the fluidity of the metal Explanation

Explanation

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