Q. The effect of setting a boring tool above centre height leads to

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Q. Which of the following statement is correct about nose radius?

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Q. The cutting speed for drilling __________ with high speed steel drills is 24 to 45 m/min.

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Q. In a centre lathe, the cutting tool is fed in __________ with reference to the lathe axis.

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Q. The angle between the face of the tool and a line tangent to the machined surface at the cutting point is called cutting angle.

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Q. If the grain size is __________ the tool life is better.

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Q. Flank wear is due to the abrasive action of hard mis-constituents including debris from built up edge as the work material rubs the work surface.

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Q. The operation of reproduction of an outline of a template on a workpiece is called face milling.

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Q. The usual value of the point angle of a drill is

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Q. Buffing wheels are made of

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Q. In drilling mild steel and brass, the point angle of a drill is 118°.

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Q. The tail stock set over method of taper turning is preferred for

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Q. The chuck preferred for quick setting and accurate centering of a job is

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Q. Negative rakes are used for

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Q. A bottoming tap has

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Q. The enlarging of an existing circular hole with a rotating single point tool is called

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Q. In the relation VTn = C, the value of n for high speed steel tools varies from 0.25 to 0.40.

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Q. Glazing in grinding wheels __________ cutting capacity.

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Q. The usual value of the helix angle of a drill is

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Q. The cutting speed for counter-boring should be __________ that of drilling operation.

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