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Which of the following are associated with Heat Affected Zone?

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The advantage o the welding process is

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Brittle welds are mainly obtained due to

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Which of the following factors improve weldability of steel?

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Cold-cracking in steel weldments depends on

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(a) Laser beam welding (b) Electron beam welding (c) Ultrasonic welding.

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Cast iron is difficult to weld, because of

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The process is characterized by its high speed welding, is known as

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During plasma arc welding of aluminium, improved removal of

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Inert gas and bare electrode instead of flux coated electrode is used in the case of

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It is generally difficult to weld Aluminium parts by

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Straight polarity is always recommended for

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Oxidizing flame is used in gas welding to

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1. Gear shaving 2. Gear milling 3. Gear hobbing

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The ratio between Oxygen and Acetylene gases for neutral flame in gas welding is

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Metallic powders can be produced by

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Weld ability of ferritic stainless steel used in automotive exhaust system is improved by

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In arc welding, the arc length should be equal to

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In an inert gas welding process, the commonly used gas is

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Match List – I (Welding Process) with List – II (Application)

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