Q. Crater wear leads to

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Q. The addition of lead, sulphur and phosphorus to low carbon steels, help to

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Q. The relation between the tool life (T) in minutes and cutting speed (V) in m/min is (where n = An exponent, which depends upon the tool and workpiece, and C = A constant)

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Q. The width of cutting edge of a parting-off tool varies from

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Q. A tool used to withdraw a drill from the sleeve is called

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Q. The cutting fluid mostly used for machining steel is

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Q. The lip angle is the angle

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Q. Small nose radius

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Q. The operation of producing grooves around the periphery of a cylindrical or conical workpiece is called

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Q. The grinding wheel speed (surface speed in m/min) usually varies from

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Q. The factor considered for evaluation of machinability is

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Q. In oblique cutting system, the tool may or may not generate a surface parallel to the workface.

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Q. The plunge grinding requires very __________ speed.

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Q. In conventional milling, the cutting force tends to lift the work.

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Q. In machining metal, cutting force at the cutting edge is measured by a

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Q. With the same tool life, the maximum material per minute is removed by

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

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Q. A feed gear box for a screw cutting lathe is designed on the basis of

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Q. In American Standard Association (A S A) system, if the tool nomenclature is 8-6-5-5-10-15-2 mm, then the side rake angle will be

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Q. The lip clearance angle should decrease towards the centre of the drill than at the circumference.

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