Q. The hot working of metals is carried out

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Q. In a four high rolling mill, the diameter of backing up rolls is __________ the diameter of working rolls.

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Q. The welding process used to join the ends of two pipes of uniform cross-section, is

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Q. When the molten metal is fed in the cavity of a metallic mould by gravity, the method of casting is known as

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Q. Hot piercing is extensively used for making bolts and nuts.

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Q. For gas welding, the pressure desired at the welding torch for oxygen is

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Q. Seam weiding is a

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Q. In a simple die

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Q. The operation of producing cup shaped parts from flat sheet metal blanks by bending and plastic flow of metal, is known as

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Q. When more volume of acetylene and less volume of oxygen is supplied, then a __________ flame is obtained.

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Q. The instrument used to measure external and internal diameter of shafts, thickness of parts and depth of holes, is

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Q. The punch and die set up is __________ for punching and piercing operation.

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Q. For smoothing and cleaning out depressions in the mould, a __________ is used.

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Q. When the dimension is expressed as , then the tolerance is

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Q. The brass and bronze are welded by __________ flame.

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Q. Projection welding is a

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Q. The adhesiveness is the property of a sand due to which

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Q. A stripper-plate machine is used to draw the pattern from the mould.

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Q. The algebraic difference between the maximum limit and the basic size is called

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