Recent questions in material science

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“Carburizing” is done on non-ferrous alloys to

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Machine tool beds are generally made of

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Fracture surface of grey cast iron

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The blade of a power saw is made of

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Which of the following statements are true of annealing of steels?

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Match List-I (Steel type) with List II (Product)

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Induction hardening is basically a

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The percentage of phosphorous in phosphor bronze is

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Which of the following surface hardening heat treatment method is used for surface hardening

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Temperature required for full annealing in hyper-eutectoid steel is

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The main alloying elements in high speed steel in order of increasing proportion are

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Presence of hydrogen in steel causes

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Match the following List-I (Alloying element in steel) and List-II (Effect)

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In case carburizing carbon is introduced to form a high carbon layer at the surface

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Hardness as a function of carbon content is shown in

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Which of the following generally decreases in the steel after quench-hardening

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The edge of a steel plate cut by oxygen cutting will get hardened when the carbon content is

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For the pipe fitting like elbow, tee, union etc. which of the following is preferred?

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Quenching is not necessary when hardening is done by

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Small percentage of boron is added to steel to

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