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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Q. The tail stock and the carriage of a lathe may be guided on same or different guideway.

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Q. In order to achieve a specific surface finish in single point turning, the most important factor to be controlled is

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Q. Surface grinding is done to produce

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Q. Gear finishing operation is called

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Q. The tool life is said to be over if

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Q. Continuous chips with built up edge are formed during machining of

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Q. The rate of removing metal is __________ by increasing the depth of cut.

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Q. The method of grinding used to produce internal cylindrical holes and tapers, is

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Q. The tool life is __________ cutting speed.

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