Q. Why is atmospheric nitrogen inappropriate for use in the nitriding process?

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Q. Which of the following is not applicable for nitriding process?

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Q. Cyaniding is usually done for _________

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Q. Cyaniding is carried out at a temperature of ___________

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Q. Which of the following does not apply to cyaniding?

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Q. Gas cyaniding is otherwise known as __________

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Q. How long is the heating process for carbonitriding done for?

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Q. At what temperature is the workpiece tempered in carbonitriding process?

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Q. What is the case depth obtained in the cyaniding process?

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Q. What is the hardness achieved in the carbonitriding process?

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Q. What are the applications of nitriding?

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Q. Nitriding steels are tempered at about ________

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Q. Flame hardening can only be performed on steels with a minimum of ______ carbon.

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Q. How is the heating of surface done in flame hardening technique?

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Q. Flame hardening technique is suitable for ____________

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Q. Which of the following is an application for flame hardening?

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Q. How does induction hardening differ from flame hardening?

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Q. What is the frequency used for depths of 2 to 3 mm in induction hardening?

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Q. Which of the following is true for induction hardening?

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Q. What is the hardness achieved by flame hardening?

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