General Knowledge - General Science - Discussion
Discussion Forum : General Science - Elements and Metals (Q.No. 17)
17.
The gases used in different types of welding would include
Discussion:
55 comments Page 5 of 6.
Kundon said:
8 years ago
It is also known as oxy acetylene flame it is of temp of 3700 degree celcius.
Nishant Sengupta said:
8 years ago
A weld is done so it stays welded and intact without undergoing oxidation, leading to failure. Therefore a protective coating of inert gas (which is usually CO2 or Argon) is used, INEVITABLY, or else the welding is either underwater or in a vacuum. Hence, I Believe [C] should be the right answer.
Sanjay said:
8 years ago
But on the other hand, argon welding is contain argon gas.
Palash das said:
8 years ago
No, the Correct answer is "c".
Anju said:
7 years ago
I think that when oxygen and acetylene are proper to welding than why to add extra argon gas, it's costly.
Biku said:
7 years ago
No, D is the right answer.
Prashu said:
7 years ago
Oxygen react with acetylne and forms diff types of flame which is at very high temp.
Shwetha said:
7 years ago
Because oxygen reacts with acetylene in presence high temperature and it helps easy to welding.
Chaitanya said:
7 years ago
Carbon dioxide, Argon and helium gases are also used in welding. They act as shielding gases and prevent oxidation of the molten pool.
Ansaf A Malik said:
6 years ago
Argon also used for welding.
So the correct option is C.
So the correct option is C.
(1)
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