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In gas welding, the torch should be held

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Consider the following statements: The size of the heat affected zone (HAZ) will increase with

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Match List I (Welding problems) with List II (Causes)

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In resistance welding, heat is generated due to the resistance between

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High speed electron beam of electron beam welding is focused on the weld spot using

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Match List I (Welding Defects) with List II (Causes)

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In which one of the following welding techniques is vacuum environment required?

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Match List I (Ingredients) with List II(Welding functions) and select the correct answer:

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Oxyacetylene reducing flame is used while carrying out the welding on

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In arc welding (d)(c) reverse polarity is used to bear greater advantage in

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In manual arc welding, the equipment should have drooping characteristics in order to maintain the

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Pinch effect in welding is the result of

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Arc blow is more common in

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The maximum heat in resistance welding is at the

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The correct sequence of these processes in increasing order of their welding temperature is

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Laser beam welding employs a vacuum chamber and thus avoids use of

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The correct sequence of the given processes is manufacturing by powder metallurgy is

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The correct sequence of the given materials in ascending order of their weldability is

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In oxy – acetylene gas welding, for complete combustion, the volume of oxygen required per unit of acetylene is

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Which of the following joining processes are best suited for manufacturing pipes to carry gas products?

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