MANUFACTURING AND PRODUCTION TECHNOLOGY QUIZ

NC contouring is an example of

Absolute positioning

Continuous path positioning

Incremental positioning

Point-to-point positioning

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In machining metals, surface roughness is due to

Cutting tool vibrations

Fragment of built-up edge on the machined surface

Feed marks or ridges left by the cutting tool

All of these

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The maximum production of small and slender parts is done by

Sliding head stock automatic lathe

Watch maker's lathe

Multi-spindle automatic lathe

Capstan lathe

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Which of the following arc welding processes does not use consumable electrodes?

GTAW

GMAW

None of these

Submerged Arc Welding

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The tap used to cut threads in a blind hole is

Any one of these

Taper tap

Bottoming tap

Second tap

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The rear teeth of a broach

Remove minimum metal

Perform burnishing operation

Remove maximum metal

Remove no metal

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The process of changing the shape of grinding wheel as it becomes worn due to breaking away of the abrasive and bond, is called

Clearing

Truing

Facing

Dressing

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The average cutting speed for turning mild steel with a high speed steel tool is

25 to 31 m/min

90 to 120 m/min

15 to 19 m/min

60 to 90 m/min

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The average cutting speed for turning brass with a high speed steel tool is

15 to 19 m/min

60 to 90 m/min

90 to 120 m/min

25 to 31 m/min

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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

Friction zone

None of these

Work-tool contact zone

Shear zone

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