The tool life in case of a grinding wheel is the time
A. Between two successive regrinds of the wheel
B. Taken for the wheel to be balanced
C. Taken between two successive wheel dressings
D. Taken for a wear of 1 mm on its diameter
Answer: Option C
Related Questions on Manufacturing and Production Technology
The carbide tools operating at very low cutting speeds (below 30 m/min)
A. Reduces tool life
B. Increases tool life
C. Have no effect on tool life
D. Spoils the work piece
The type of reamer used for reaming operation in a blind hole, is
A. Straight fluted reamer
B. Left hand spiral fluted reamer
C. Right hand spiral fluted reamer
D. Any one of these
High speed steel tools retain their hardness up to a temperature of
A. 250°C
B. 350°C
C. 500°C
D. 900°C
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