Heat Treatment – Page 2 – HI MCQ!

One component of steel is heated to 830°c, shocked at it for some time and then quenched in oil. Again it is heated to 600°c and quenched in oil. Name this process of heat treatment?

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Purpose of tempering steel is?

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High speed steel is tempered at?

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Pyrometer is an instrument used to measure?

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case hardening is a method of producing hard skin in the surface of?

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The external surface of the part made of mild steel can be hardened by?

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upon heat treatment of carbon steel. Which one of the following will give the maximum hardness?

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Which one of the following heat treatment processes produces a scale free surface on the component?

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The process of heating steel to about 40°c above the upper critical temperature and cooling it in still air to room temperature is known as?

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Which of the following quenching diameter is used for hardening high speed steel tool?

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