Virtual Labs

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Aim

Theory

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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Contributors

Feedback

Mould hardness & Core hardness

Choose difficulty:

Beginner

Intermediate

Advanced

What does mould hardness measure? (LO1)

a: The amount of binder in the sand Explanation

Explanation

b: The permeability of the mould Explanation

Explanation

c: The ramming strength of the mould Explanation

Explanation

d: The surface roughness of the casting Explanation

Explanation

The mould hardness tester is based on which principle? (LO2)

a: Scratch testing Explanation

Explanation

b: Indentation testing Explanation

Explanation

c: Electrical resistance testing Explanation

Explanation

d: The surface roughness of the casting Explanation

Explanation

The dial indicator of a mould hardness tester typically ranges between: (LO2)

a: 0 – 50 Explanation

Explanation

b: 0 – 75 Explanation

Explanation

c: 0 – 100 Explanation

Explanation

d: 0 – 150 Explanation

Explanation

Which of the following is an application of the mould hardness tester? (LO1)

a: Measuring the permeability of the mould Explanation

Explanation

b: Checking the roughness of the final casting Explanation

Explanation

c: Measuring the green mould hardness Explanation

Explanation

d: Determining the cooling rate of molten metal Explanation

Explanation

What should NOT be done while using the mould hardness tester? (LO2)

a: Clean the tester before and after use Explanation

Explanation

b: Tamper with the calibration settings Explanation

Explanation

c: Ensure proper contact with the mould Explanation

Explanation

d: Take multiple readings for accuracy Explanation

Explanation

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