Q. If the shear angle is large and the chip-tool contact area is low, then the tool life will be more.

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Q. In drilling brass, a drill with

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Q. The carbide tools operating at very low cutting speeds (below 30 m/min)

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Q. In oblique cutting of metals, the cutting edge of the tool is

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Q. The grinding of long, slender shafts or bars is usually done by

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Q. In centreless grinding, work place centre will be

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Q. Tool life is measured by the

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Q. Soft materials can not be economically ground due to

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Q. The process of removing metal by a cutter which is rotated in the same direction of travel of workpiece, is called

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Q. Crater wear is mainly due to the phenomenon known as

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Q. The cutting speed for drilling aluminium, brass and bronze with high speed steel drills varies from

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Q. Flank wear depends upon the

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Q. The tool may fail due to

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Q. The operation of machining several surfaces of a workpiece simultaneously is called

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Q. The abrasive recommended for grinding materials of low tensile strength is

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Q. The chamfering is an operation of

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Q. The hard grade grinding wheels are denoted by the letters

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Q. The tailstock set over required to turn a taper on the entire length of a workpiece having diameters D and d is

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Q. The angle formed by the leading edge of the land with a plane having the axis of the drill, is called

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Q. A drill bit of 20 mm diameter rotating at 500 r.p.m. with a feed rate of 0.2 mm/revolution is used to drill a through-hole in a mild steel plate 20 mm thickness. The depth of cut in this drilling operation is

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