Q. Structural sections such as rails, angles, I-beams are made by

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Q. The minimum size of a billet is 10 cm x 10 cm.

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Q. In welding magnesium with TIG arc welding, direct current with __________ is used.

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Q. The operation of cutting a cylindrical hole in a sheet of metal by the punch and die is called

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Q. In die casting, machining allowance is

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Q. The welding set up is said to have straight polarity, when

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Q. A moving mandrel is used in

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Q. The most preferred process for casting gas turbine blades is

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Q. The cold chisels are made from

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Q. To prevent the body of the blade from jamming in the saw cut, the teeth of blade are

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Q. A ring gauge is used to

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Q. A casting defect which results in general enlargement of a casting is known as

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Q. Rotary swaging

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Q. The upsetting is a process of

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Q. If neutral flame is used in oxy-acetylene welding, both oxygen and acetylene cylinders of the same capacity will be emptied at the same time.

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Q. Which of the following material can be used for making patterns ?

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Q. The torch used for oxygen cutting is same as for oxy-acetylene welding.

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Q. According to Indian standards, the total number of tolerance grades are

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Q. Which of the following statement is wrong?

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Q. When two metal pieces of different thicknesses are to be welded by projection welding, then the projections should be made on __________ metal piece.

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