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Carburising flame is used to weld

In arc welding, the electric arc is produced between the work and the electrode by

In spot welding, the distance between the nearest edge of the plate and centre of weld should be equal to

The directional solidification in casting can be improved by using

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

Which of the following welding process uses non-consumable electrodes

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

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

Aluminium is the best material for making patterns because it is

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

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

V-block is used to

Shift is a casting defect which

The consumable electrode is used in

In shielded arc welding

The advantage of thermit welding is that

Which of the following methods can be used for manufacturing 2 metre long seamless metallic tubes

In welding copper alloys with TIG arc welding

The temperature produced by oxy-hydrogen flame is about

The accuracy of micrometers, calipers, dial indicators can be checked by a

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