Production technology - Q2

Which of the following is not the characteristics of an ideal cutting tool

• hot hardness

• wear resistance

• toughness

• surface finish

• cost effectiveness

Property of a material to retain its hardness at elevated temperature is called

• strength

• hardness

• toughness

• hot hardness

----------- is a combination of strength and ductility

which of the following is not a cutting tool material

• diamond

• abrasives

• carbon steels

• brass

• ceramics

cheapest cutting tool material is

• HSS

• ceramics

• carbon steel

• abrasives

Hot hardness temperature of carbon steels is

• 200-250 degree c

• 250 - 350 degree c

• 150 - 150 degree c

• 300 - 400 degree c

Example of carbon steel

• All the options

• Garden knife

• Cutting plier

• Knife

High speed steel is generally classified into ----- types

• 1

• 2

• 3

• 4

Cobalt in HSS improves --------

• stability

• hot hardness

• wear resistance

• hot hardness and wear resistance

Cemented carbides can machine upto ----- degree centigrade temperature

• 250

• 500

• 1000

• 1500