ASSEMBLY - Practice Mode

1) Which abrasive is used for lapping dies and gauges?

Boron carbide Silicon carbid Diamond Aluminium oxide

Correct Answer: Boron carbide

2) Which is the hardest of all abrasive material and used for lapping tungsten carbide?

Silicon carbide Boron carbide Diamond Aluminium oxide

Correct Answer: Diamond

3) What is the abrasive used for lapping accurately finishing very small holes?

Silicon carbide Diamond Boron carbide Aluminium oxide

Correct Answer: Diamond

4) What is the purpose of lapping vehicles?

Regulate cutting action and lubricate surface Medium effective operation Decrease dimensional accuracy Decrease cutting ability

Correct Answer: Regulate cutting action and lubricate surface

5) Which lapping vehicle is used for lapping copper and its alloys?

Vegetable oil Machine oil Soluble oil Petroleum jelly

Correct Answer: Soluble oil

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