11.
The material which on machining produces chips with built up edge is

12.
A 15 mm drilling machine means that it can drill a hole

13.
The binding material used in cemented carbide tools is

14.
In the relation VTn = C, the value of n for carbide tools is

15.
In the relation VTn = C, the value of n for ceramic tools is

16.
For machining a cast iron workpiece by a high speed steel tool, the average cutting speed is

17.
For machining a mild steel workpiece by a high speed steel tool, the average cutting speed is

18.
The specific cutting energy used for establishing the machinability of the metal depends upon its

19.
The cutting speed of a drill depends upon the

20.
The size of abrasive grain required in a grinding wheel depends upon the

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