Q. Fin is a casting defect which is due to thin projections of metal not intended as a part of casting.

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Q. The process of increasing the cross-section of a bar at the expense of its length, is called

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Q. In TIG arc welding, the welding zone is shielded by an atmosphere of

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Q. The metal extrusion process is generally used for producing

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Q. The operation of giving impressions of figures, letters or designs on sheet metal parts, is known as embossing.

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Q. In a gas welding of mild steel using an oxy-acetylene flame, the total amount of acetylene consumed is 10 litre. The oxygen consumption from the cylinder is

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Q. The sand used for making cores is

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Q. Sand wash is a casting defect which

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Q. Cold working distorts grain structure and does not provide an appreciable reduction in size.

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Q. Cast iron and steel pipes are produced by

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Q. The acetylene cylinder is usually painted with

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Q. In order to ram the sand harder at the back of the mould and softer on the pattern face, a __________ is used.

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Q. The property of sand due to which the sand grains stick together, is called

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Q. The temperature produced by oxy-hydrogen flame is about

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Q. The process of decreasing the cross-section of a bar and increasing its length, is called

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Q. A casting defect which occurs due to improper venting of sand is known as

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Q. Swab is used for

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Q. The temperature of the inner luminous cone of neutral flame is about

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Q. The metal patterns as compared to wooden patterns require less

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Q. In blanking operation, the clearance is provided on

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