MCQs: Cold chisel & hammers are made of_________________?
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MCQs: Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young’s modulus, G = Modulus of rigidity or shear modulus v = Poisson’s ratio) ?
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MCQs: The cathode in an electrochemical cell always carries____________________?
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MCQs: Multistage compression of air as compared to single stage compression offers the advantage of______________?
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MCQs: _________________ can replace tungsten in high speed steel ?
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MCQs: In electrical resistance welding, distortion results from the use of improper________________?
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MCQs: Addition of ____________________ to steel does not help in improving its machinability?
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MCQs: Dew point temperature always gives an indication of the __________________ of the moist air ?
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MCQs: The most important consideration, while designing the refrigeration system of an aircraft is that the refrigeration system_________________?
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MCQs: Consumable electrodes are used in the ____________________ welding?
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MCQs: An oxidation process is accompanied with decrease in the____________________?
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MCQs: With decrease in the grain size of a material, its creep resistance___________________?
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MCQs: Austempering of steel requires it to be heated to 875°C followed by sudden cooling to 250- 525°C, thereby changing austenite to___________________?
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MCQs: What is the percentage of chromium in 18-4-1 high speed steel ?
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MCQs: Electrometallurgical methods of metal extraction is normally used for those metals___________________?
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MCQs: Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat interaction of 3000 kJ causes the surroundings to be heated. Internal energy change of the gas during the compression is __________________ kJ ?
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MCQs: Hydrogen can be ________________?
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MCQs: Air standard Otto cycle is more efficient than the diesel cycle for the same__________________?
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MCQs: Percentage of argon (by volume) in dry atmospheric air is about________________?
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MCQs: _____________ is the process of coating the surface of steel with aluminium oxide, thereby imparting it increased resistance to corrosion & oxidation upto a temperature of 700°C ?
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