MANUFACTURING AND PRODUCTION TECHNOLOGY QUIZ

Surface grinding is done to produce

Flat surface

Internal cylindrical holes

Tapered surface

All of the listed here

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A dense structure of a grinding wheel is used for

Finishing cuts

All of these

Hard materials

Brittle materials

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Which type of motor is not used in axis or spindle drives of CNC machine tools?

Induction motor

Linear servo motor

DC servo motor

Stepper motor

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The cutting speed is maximum while machining _________ with a high speed steel tool.

Mild steel

Cast iron

Aluminium

Brass

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

Becomes smaller and finally does not form at all

May or may not form

Becomes longer

Has nothing to do with speed

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Which of the following operations is carried out at a minimum cutting velocity if the machines are equally rigid and the tool work materials are the same?

Grinding

Turning

Boring

Milling

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Which of the following statement is correct regarding grinding of high carbon steel?

Aluminium oxide wheels are employed.

All of these

The grinding wheel has to be of open structure.

Grinding at high speed results in the reduction of chip thickness and cutting forces per grit.

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The taper on the lathe spindle is

1 in 15

1 in 30

1 in 20

1 in 10

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High speed steel cutting tools operate at cutting speeds _________ than carbon steel tools.

2 to 3 times higher

8 to 20 times higher

5 to 8 times higher

2 to 3 times lower

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Drilling is an example of

Orthogonal cutting

Simple cutting

Uniform cutting

Oblique cutting

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