railway RRB JE (CBT I + CBT II) Mock Test 2024 Production Engineering (Manufacturing) Machining Processes and Machine Tools Unconventional Machining Processes
Consider the following energy sources for different machining processes :
|
(A) |
Electrochemical machining |
1. |
Electric current machining and force |
|
(B) |
Electrochemical grinding |
2. |
Corrosive agent |
|
(C) |
Chemical machining |
3. |
Powerful radiation |
|
(D) |
Laser beam machining |
4. |
Electric current |
Choose the option in which given pairs are correctly matched.
1
A – 2, B – 1, C – 3, D – 4
2
A – 4, B – 2, C – 3, D – 1
3
A – 3, B – 1, C – 4, D – 2
4
A – 4, B – 1, C – 2, D – 3