MANUFACTURING AND PRODUCTION TECHNOLOGY QUIZ

The lip clearance angle is the angle formed by the

Flank and a plane at right angles to the drill axis

Leading edge of the land with a plane having the axis of the drill

None of the listed here

Chisel edge and the lip as viewed from the end of a drill

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A mandrel is used to hold

A heavy work

An eccentric work

A thin work

None of these

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If the cutting speed is increased, then the built-up-edge

Becomes smaller and finally does not form at all

Has nothing to do with speed

May or may not form

Becomes longer

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

Stellite

Ceramic

Cemented carbide

Diamond

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An important geometrical quantity in the cutting of metals which can be used as a criterion for machinability of metals is

Tool geometry

Feed rate

Cutting speed

Shear angle

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In centerless grinders, the regulating wheel is inclined at

0° to 8°

16° to 20°

9° to 15°

21° to 25°

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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

End milling

Up milling

Down milling

Face milling

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A solid cylinder of diameter 100 mm and height 50 mm is forged between two frictionless flat dies to a height of 25 mm. The percentage change in diameter is

2.07

41.4

20.7

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

Improve machinability

Reduce built up edge

All of these

Break up chips

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While current is shut down in the welding circuit, what kind of voltage exists between the output terminals of the welding machine?

Gouging

GTAW

Kerf

Open air cut voltage

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