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Consider the following processes:
1. Gas welding
2. Thermit welding
3. Arc welding
4. Resistance welding
The correct sequence of these processes in increasing order of their welding temperatures is
- a)1, 3, 4, 2
- b)1, 2, 3, 4
- c)4, 3, 1, 2
- d)4, 1, 3, 2
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
Consider the following processes: 1. Gas w...
Explanation:
Welding is a process in which two or more metal parts are joined together by heating them to their melting temperatures and allowing them to cool and solidify.
The welding temperature depends on the type of welding process used. Some welding processes require very high temperatures while others can be performed at lower temperatures.
The given processes are gas welding, thermit welding, arc welding, and resistance welding. Let's discuss each of these processes and their welding temperatures.
1. Gas welding:
Gas welding is a process in which two metal parts are joined together by heating them to their melting temperatures using a flame produced by burning a fuel gas such as acetylene. The welding temperature in gas welding is around 1500°C to 1600°C.
2. Thermit welding:
Thermit welding is a process in which two metal parts are joined together by heating them to their melting temperatures using a chemical reaction between aluminum powder and iron oxide. The welding temperature in thermit welding is around 2500°C to 3000°C.
3. Arc welding:
Arc welding is a process in which two metal parts are joined together by heating them to their melting temperatures using an electric arc produced between an electrode and the workpiece. The welding temperature in arc welding is around 6000°C to 7000°C.
4. Resistance welding:
Resistance welding is a process in which two metal parts are joined together by passing an electric current through them and heating them to their melting temperatures due to the resistance offered by the metal parts. The welding temperature in resistance welding is around 800°C to 1200°C.
Based on the above discussion, we can conclude that the correct sequence of these processes in increasing order of their welding temperatures is option 'B', i.e., 1, 2, 3, 4, which means gas welding has the lowest welding temperature, followed by thermit welding, arc welding, and resistance welding.
Welding is a process in which two or more metal parts are joined together by heating them to their melting temperatures and allowing them to cool and solidify.
The welding temperature depends on the type of welding process used. Some welding processes require very high temperatures while others can be performed at lower temperatures.
The given processes are gas welding, thermit welding, arc welding, and resistance welding. Let's discuss each of these processes and their welding temperatures.
1. Gas welding:
Gas welding is a process in which two metal parts are joined together by heating them to their melting temperatures using a flame produced by burning a fuel gas such as acetylene. The welding temperature in gas welding is around 1500°C to 1600°C.
2. Thermit welding:
Thermit welding is a process in which two metal parts are joined together by heating them to their melting temperatures using a chemical reaction between aluminum powder and iron oxide. The welding temperature in thermit welding is around 2500°C to 3000°C.
3. Arc welding:
Arc welding is a process in which two metal parts are joined together by heating them to their melting temperatures using an electric arc produced between an electrode and the workpiece. The welding temperature in arc welding is around 6000°C to 7000°C.
4. Resistance welding:
Resistance welding is a process in which two metal parts are joined together by passing an electric current through them and heating them to their melting temperatures due to the resistance offered by the metal parts. The welding temperature in resistance welding is around 800°C to 1200°C.
Based on the above discussion, we can conclude that the correct sequence of these processes in increasing order of their welding temperatures is option 'B', i.e., 1, 2, 3, 4, which means gas welding has the lowest welding temperature, followed by thermit welding, arc welding, and resistance welding.
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Community Answer
Consider the following processes: 1. Gas w...
All options are wrong as Thermit welding is carried out at a temp of 1200- 2400c, gas welding 3000c and arc welding at 5000- 20000 c.
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Consider the following processes: 1. Gas welding 2. Thermit welding 3. Arc welding 4. Resistance weldingThe correct sequence of these processes in increasing order of their welding temperatures isa)1, 3, 4, 2 b)1, 2, 3, 4 c)4, 3, 1, 2 d)4, 1, 3, 2Correct answer is option 'B'. Can you explain this answer?
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