Q. The welding set up is said to have reversed polarity when the work is connected to the negative terminal and the electrode holder to the positive terminal.

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Q. A jolt machine is used to

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Q. If the sand is too fine, its permeability will be high.

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Q. Which of the following statement is wrong?

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Q. In a compound die

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Q. A file removes the metal during

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Q. A pouring basin acts as a reservoir for the molten metal.

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Q. In bending operation, the metal takes the shape of a punch.

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Q. The cold working of metals is carried out

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Q. Lancing is the operation of

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Q. Notching is the operation of

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Q. In a unilateral system of tolerance, the tolerance is allowed on

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Q. A two high rolling mill consists of two rolls which rotate

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Q. Carburising flame is used to weld

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Q. The electrode tip diameter (d) in spot welding should be equal to (where t = Thickness of plate to be welded)

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Q. For obtaining a cup of diameter 25 mm and height 15 mm by drawing, the size of the round blank should be approximately

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Q. Cores are used to

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Q. The drawing down is a process of __________ the cross-section of a bar.

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Q. During hot working of metals

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Q. When a pattern is made in three parts, the __________ is known as a drag.

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