Q. The correct sequence for preparing a billet for extrusion process is pickling, alkaline cleaning, phosphate coating and lubricating with reactive soap.

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Q. Tandem drawing of wires and tubes is necessary because

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Q. In a __________ , both cutting and non-cutting operations are performed at one station of the press in every stroke of the ram.

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Q. For welding plates of thickness more than 12.5 mm, its edges

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Q. In electric resistance welding, voltage required for heating is

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Q. Most of the oxy-acetylene welding is done with

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Q. The cutting edge of a chisel should be

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Q. Scab is a casting defect which occurs as sand patches on the upper surface of a casting.

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Q. Cold working requires much higher pressure that hot working.

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Q. The operation of bending a sheet of metal along a curved axis, is known as

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Q. In a __________ , two or more operations are performed simultaneously at the single stroke of the ram.

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Q. A rip saw

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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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