Related Questions

The increase in hardness of metal due to its cold working is termed as the __________ hardening.
A Work
B Age
C Induction
D Flame
The only suitable method for hardening the low carbon steel is case hardening. Which of the following is a case hardening process?
A Cyaniding
B Sheardising
C Spherodising
D None of these
Strain hardening effect in a metal subjected to cold working is due to the __________ mechanism.
A Fracture
B Dislocation
C Slip
D Twinning
Strain hardening effect in metals subjected to cold working is due to the __________ mechanism.
A Slip
B Fracture
C Winning
D Dislocation
The increase in hardness due to cold working, is called
A Age hardening
B Work hardening
C Induction hardening
D Flame hardening
Two men and women are entrusted with a task. The second man needs three hours more to cope up with the job than the second man and the woman would need working together. The first man, working alone, would need as much time as second man and the woman working together. The first man working alone, would spend eight hours less than the double period of the time second man would spend working alone. How much time would the two men and the women need to complete the task if they all asked together?
A 1 hour
B 2 hours
C 3 hours
D 4 hours
E 5 hours
Which is false statement about case hardening? Case hardening is done by
A Electroplating
B Cyaniding
C Induction hardening
D Nitriding
Which of the following hardness tests uses the depth of penetration caused by the indentor as the parameter for arriving at the hardness value of a material ?
A Shore sceleroscope test
B Vicker's hardness test
C Brinell hardness test
D Rockwell hardness test
The stress at which extension of the material takes place more rapidly as compared to the increase in load is termed as the __________ point of the material.
A Elastic
B Ultimate
C Yielding
D Breaking
Grain hardness is measured by the __________ hardness testing method.
A Knoop
B Rockwell F
C Shore sceleroscope
D Vicker's

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