Q. Filler metal is used in __________ welding.

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Q. Acetylene should never be conveyed through __________ pipe, as it forms an unstable compound that dissociates violently at the slightest shock.

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Q. Which of the following contains the least percentage of carbon ?

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Q. Electric arc furnace is employed mainly for the production of __________ steel.

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Q. Heat treatment of steel is done mainly to change its

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Q. With increase in carbon percentage in steel, its

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Q. Percentage of gaunge is maximum in the ore of

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Q. The forms in which various metals and non metals occur in nature are called minerals. Which of the following is not a metallic ferrous mineral?

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Q. Pick out the wrong statement.

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Q. The most commonly used material for sewers for carrying sewage in the normal situation is

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Q. Machine tool bodies are usually made of

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Q. Out of the following, the best material capable of withstanding shock & vibration without the danger of cracking is

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Q. On increasing the yield strength of a steel from 450 to 650 MPa, its __________ will increase.

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Q. The refractory brick which has good thermal shock resistance at high temperature but cracks on cooling below 400°C is

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Q. The path and movements followed by men, materials & equipments in executing the activities is indicated by the

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Q. Stoneware pipes used for sewers for carrying sewage normally is joined by __________ joint.

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Q. Which of the following parameters is actually measured during tensile testing of a specimen using Universal testing machine?

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Q. 'End cooler' or 'after cooler' is employed in air compressor mainly to

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Q. Streaklines, streamlines & pathlines are almost identical for __________ fluid flow.

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Q. The suction and delivery pressure for a two stage compressor are 1 and 25 atm respectively. The intermediate stage pressure would be around __________ atm.

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