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Oxidising Reagent and Reducing Reagent

Which of the ...

Question

Which of the following processes can be used for welding of Aluminium alloys?

P. Submerged arc welding
Q. Gas metal arc welding
R. Electroslag welding
S. Gas tungsten arc welding

A

R and S

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B

P and Q

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C

Q and S

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D

Q and R

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Solution

The correct option is C Q and S
Aluminium is a highly reactive metal, hence GTAW and GMAW with insert gasses (like argon) are used for welding aluminium.

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Similar questions

Q. Which of the following are considered as electrode welding non-consumable operations?
1. Resistance welding
2. Tungsten Inert gas welding
3. Metal inert gas welding
4. Electroslag welding

Q. Match the following

Work material

P. Aluminium
Q. Die steel
R. Copper Wire
S. Titanium sheet

Type if joining

1. submerged Arc Welding
2. Soldering
3. Thermit welding
4. Atomic hydrogen Welding
5. Gas Tungsten arc Welding
6. Laser Beam Welding

Q. A gas tungsten arc welding operation is performed using current of

250 A

and an arc voltage of

20 V

at a welding speed of

5 m m / s

. Assuming that the arc efficiency is

70

%, the net heat input per unit length of the weld will be
(round off to one place).

Q. Which two of the following joining processes are autogenous?

i. Diffusion welding
ii. Electroslag welding
iii. Tungsten inert gas welding
iv. Friction welding

Q. Which of the following arc welding processes does not use consumable electrode

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