railway RRB JE (CBT I + CBT II) Mock Test 2024 Production Engineering (Manufacturing) Machining Processes and Machine Tools Different Machining Processes
The letter K in the conventional abrasive wheel specified by 51 A 60 K 5 V 05 denotes the -
1
Hardness of the wheel
2
Type of abrasive
3
Bond material
4
Structure of the wheel