Fixtures are used
A. for holding and guiding the tool in drilling, reaming or tapping operations
B. for holding the work in milling, grinding, planing or turning operations
C. to check the accuracy of workpiece
D. All of the above
Answer B
The cutting speed is maximum while machining __________ with a high speed steel tool
A. cast iron
B. mild steel
C. Brass
D. aluminium
Answer D
In electro-discharge machining, tool is made of
A. Brass
B. Copper
C. copper tungsten alloy
D. all of the above
A broach has
A. roughing teeth
B. Semi finished teeth
C. finishing teeth
In a single point turning operation with a cemented carbide and steel combination having a Taylor exponent of 0.25, if the cutting speed is halved, then tool life will become
A. half
B. two times
C. eight times
D. sixteen times
