1
Q
The addition of chromium to steel will produce?
A
Hardness
2
Q
Impact resistance measures?
A
Toughness
3
Q
A charpy test is carries out to test a materials ……….
A
Toughness
4
Q
A charpy test measures?
A
Impact energy & materials toughness
5
Q
Hardness Definition:
A
A materials ability to withstand friction
6
Q
Toughness definition:
A
How well the material can withstand fracturing when force is applied
7
Q
Types of hardness testing machines:
A
Rockwell, Brinell & Vickers
8
Q
Brinell hardness testing, for non-ferrous metals ……… pressure is applied than the ferrous metals
A
Less
9
Q
At ordinary temperature the hardness of steel is due to?
A
Ferrite or iron carbide particles
10
Q
The hardness of steel depends upon?
A
The formation of cementite
B Licence M6
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