1) Which of the following photographic papers is used in sulphur printing technique? a. Bronze bromide paper b. Copper bromide paper c. Silver bromide paper d. None of the above
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2) The rule used to determine composition of various phases in a phase diagram is _____ a. Gibb's phase rule b. Lever rule c. Both a. and b. d. None of the above
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3) The process of lowering the temperature of a liquid below its freezing point is known as _____ a. supercooling b. undercooling c. both a. and b. d. none of the above
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4) Which of the following is an etching reagent used for carbon steels? a. Nitric acid b. Picric acid c. Both a. and b. d. None of the above
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5) Eutectoid steel contains _____ a. 0.4 % Carbon b. 0.8 % Carbon c. 1.2 % Carbon d. 2.2 % Carbon
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6) The mixture of α-ferrite and cementite is called as _______ a. Ledeburite b. Pearlite c. Both a. and b. d. None of the above
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7) Which of the following neutral elements neither form carbides nor cause graphitization? a. Aluminium b. Chromium c. Cobalt d. Copper
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8) Which of the following alloying elements prevent formation of austenite in high chromium steels? a. Boron b. Carbon c. Manganese d. Titanium
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9) Which of the following alloying elements are deoxidizers? a. Aluminium b. Silicon c. Both a. and b. d. None of the above
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10) Which of the following phase is obtained as the end product, after complete heat treatment cycle in austempering process? a. Austenite b. Bainite c. Martensite d. Pearlite
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