Q. Theoretical volume of oxygen required for complete combustion of 1Nm³ of acetylene, in oxy-acetylene welding is __________ Nm³ .

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Q. Out of the following, the joint produced by __________ has the lowest strength.

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Q. Dies for wire drawing are generally made of

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Q. The starting of a car takes time in winter, because the

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Q. The elastic strain in copper is due to the

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Q. Ammonia leakage in the refrigeration system is detected by

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Q. Fibre glass is a composite material of

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Q. According to thermodynamic Farenhite scale, the fundamental interval between ice point to steam point is

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Q. Maximum consumption of limestone is in the __________ industry.

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Q. Austenite is not

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Q. Stainless steel is welded with difficulty because of

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Q. For preparation of porous bearings by powder metallurgy, preferred particle shape is

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Q. The maximum thickness of the metal which can be welded using ultrasonic welding is __________ mm.

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Q. High speed steel tools retain their hardness upto a temperature of __________ °C.

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Q. Wrought iron does not have

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Q. Factor of safety in machine design is defined as the ratio of ultimate stress to __________ stress.

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Q. Out of the following, the __________ pipe has the least corrosion resistance.

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Q. With increase in steam pressure, its specific volume decreases

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Q. Which of the following rays has the least wavelength?

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Q. Hydrocyclone is a

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