MANUFACTURING AND PRODUCTION TECHNOLOGY QUIZ

A diamond locating pin is used in jigs and fixtures because

It has a long life

It helps in assembly with tolerance on centre distance

Diamond is very hard and wear resistant

It occupies very little space

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

1000 to 1500

1500 to 2000

500 to 1000

2000 to 2500

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

Up milling

End milling

Face milling

Down milling

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Negative rakes are used for

Carbide tools

All of these

Heavy loads

Harder materials

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If the helix angle of the drill is made ________ 30°, then the torque required to drive the drill at a given feed will be more.

Less than

More than

None of these

Equal to

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The factor responsible for the formation of continuous chips with built up edge is

High cutting speed and small rake angle

Low cutting speed and small rake angle

High cutting speed and large rake angle

Low cutting speed and large rake angle

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The trade name of a nonferrous cast alloy composed of cobalt, chromium and tungsten is called

Diamond

Ceramic

Cemented carbide

Stellite

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The advantage of a broaching operation is that

Roughing and finishing cuts are completed in one pass of the tool

Rate of production is very high

All of the listed here

High accuracy and high class of surface finish is possible

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Relief angles on high speed steel tools usually vary from

20° to 30°

10° to 20°

0° to 3°

3° to 10°

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The chuck used for setting up of heavy and irregular shaped work should be

Drill chuck

Magnetic chuck

Three jaw universal chuck

Four jaw independent chuck

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