Q. An oxidising flame is obtained when equal volumes of oxygen and acetylene are supplied.

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Q. A neutral flame is obtained by supplying

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Q. An oxidising process used for aluminium and magnesium articles is called

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Q. For welding plates of thickness less than 5 mm, its edges

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Q. In order to check the clearance between two mating surfaces, a __________ gauge should be used.

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Q. When the weld is made from left to right, it is known as back-hand welding.

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Q. The current in electric resistance welding can be regulated by

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Q. In a cold chamber die casting machine, only non-ferrous alloys with __________ are casted.

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Q. A mortise gauge is a

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Q. In spot welding, the spacing between two spot weld should not be less than

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Q. Aluminium is the best material for making patterns because it is

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Q. Gagger is used for cleaning the moulding sand.

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Q. In sheet metal work, the cutting force on the tool can be reduced by

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Q. In order to get uniform thickness of the plate by rolling process, one provides

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Q. Cutting and forming operations can be performed in a single operation in a

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Q. The teeth of hacksaw blade are bent

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Q. In a cold chamber die casting machine, a measured quantity of molten metal is brought in a ladle from the melting pot to a chamber and forced into the closed die-section by applying hydraulic pressure upon the plunger.

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Q. For cutting brass, the hacksaw blade should have __________ teeth per 25 mm.

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Q. A casting defect which occurs near the ingates as rough lumps on the surface of a casting is known as

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Q. Loam sand is a mixture of

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