Q. Temper brittleness of a material can be fairly detected by the __________ test.

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Q. When the wavelength of incident X-rays increases, the angle of diffraction

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Q. __________ of air does not increase with increase in temperature.

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Q. Spherical shape of mercury droplets is due to its

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Q. Sub zero treatment of steel is done to

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Q. Air-petrol ratio for maximum power generation in spark ignition engine is about

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Q. Which of the following varies as the square root of oil pressure during atomisation of fuel oil through a pressure jet burner ?

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Q. Gantt charts are used for streamlining the

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Q. In the Bayer's process, bauxite is digested under pressure using

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Q. Circular cross section machine parts which are symmetrical about the axis of rotation are made by hot

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Q. The substance used as a smoke screen in warfare is

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Q. The same volume of all gases is representative of their

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Q. In the formation of cermets, the ratio of ceramic material to metallic material is usually 80:20. Which of the following is a cermet ?

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Q. Enzymes belong to the category of

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Q. What is the value of included angle of a triangular notch for maximum discharge ?

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Q. For separating small pieces of metal from engine oil of a car, the best separating technique is the

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Q. Dephosphorisation of molten pig iron is favoured by

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Q. In a neutral solution

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Q. Which of the following commonly used condenser tube materials has the lowest thermal conductivity?

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Q. Strain hardening effect in a metal subjected to cold working is due to the __________ mechanism.

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