RL CIRCUITS QUIZ

Internal or external threads of different pitches can be produced by

Pantograph milling machine

Profiling machine

Planetary milling machine

Piano miller

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In orthogonal turning of a low carbon steel bar of diameter 150 mm with uncoated carbide tool, the cutting velocity is 90 m/min. The feed is 0.24 mm/rev and the depth of cut is 2 mm. The chip thickness obtained is 0.48 mm. If the orthogonal rake angle is zero and the principle cutting edge angle is 90⁰, the shear angle in degree is

30.56

36.56

26.56

20.56

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Ceramic cutting tools are

Brittle and have low bending strength

All of these

Made by cold pressing of aluminium oxide powder

Available in the form of tips

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A single point tool has

Rake angle

All of these

Cutting angle

Lip angle

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In metal machining, the zone where the heat is generated due to friction between the moving chip and the tool face, is called

Work-tool contact zone

Shear zone

Friction zone

None of these

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The method of centre less grinding used to produce taper is

End feed grinding

In-feed grinding

Through feed grinding

Any one of these

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A single point thread cutting tool should ideally have

Negative rake angle

Point angle

Positive rake angle

Zero rake angle

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The grinding operation is a

Surface finishing operation

Dressing operation

Forming operation

Shaping operation

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The parameter which completely defines the chip formation in a metal cutting process is

None of these

Both (A) and (B)

Shear angle

Chip-tool contact length

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

Through feed grinding

In-feed grinding

Any one of these

End-feed grinding

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