Ceramic tips for the cutting tool are prepared from __________ powder.

A car driver's income consists of his salary and tips. His salary is Tk. 50 a week. During one week his tips were 5/4 of his salary. What fraction of his income for the week came from tips?

A

4/9

B

5/4

C

5/9

D

5/8

As the cutting speed increases, the tool cutting forces

A

Remain constant

B

Increases

C

Decreases

D

First increases and then decreases

In oblique cutting system, the cutting edge of the tool

A

May clear the width of the workpiece

B

May or may not clear the width of the workpiece

C

May not clear the width of the workpiece

D

Should always clear the width of the workpiece

In oblique cutting of metals, the cutting edge of the tool is

A

Perpendicular to the workpiece

B

Perpendicular to the direction of tool travel

C

Parallel to the direction of tool travel

D

Inclined at an angle less than 90° to the direction of tool travel

The process of heating the cold pressed metallic powder is called __________ in powder metallurgy.

A

Precipitation

B

Fusion

C

Sintering

D

Agglomeration

The angle made by the face of the tool and the plane parallel to the base of cutting tool is called

A

Rake angle

B

Cutting angle

C

Clearance angle

D

Lip angle

Ceramic cutting tools are

A

Made by cold pressing of aluminium oxide powder

B

Available in the form of tips

C

Brittle and have low bending strength

D

All of these

Powder metallurgy process does not make metal powder by

A

Atomisation

B

Grinding/milling

C

Hammering

D

Electrolytic deposition

Ceramic tools are fixed to tool body by

A

Soldering

B

Brazing

C

Welding

D

Clamping

Bleaching powder is prepared by passing :

A

Chlorine over slaked lime

B

Oxygen over slaked lime

C

Carbon dioxide over slaked lime

D

Chlorine over quick lirne

Ceramic tips for the cutting tool are prepared from __________ powder.

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