A. Tempered
B. Normalised
C. Annealed
D. Hardened
Related Mcqs:
- A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson’s ratio of the rod is___________________?
A. 0
B. 0.33
C. 0.44
D. 0.25 - Strain hardening effect in metals subjected to cold working is due to the _______________ mechanism?
A. Slip
B. Fracture
C. Winning
D. Dislocation - Strain hardening effect in a metal subjected to cold working is due to the ______________ mechanism?
A. Fracture
B. Dislocation
C. Slip
D. Twinning - Which of the following processes follows the hardening process for reducing the hardening strains & increasing the toughness of the steel part ?
A. Anodising
B. Tempering
C. Carburising
D. Annealing - ______________ circuit is most commonly used to measure strain with the help of a strain gauge?
A. Ballast
B. Voltage balancing potentiometric
C. Simple current sensitive
D. None of these - A metal having a Poisson’s ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal strain = 0.8, then the magnitude of thickness strain is________________?
A. -0.8
B. 0.8
C. +0.08
D. -0.24 - Cold working of a material results in increase in hardness, which is termed as the ______________ hardening ?
A. Cold
B. Work
C. Age
D. Induction - Which of the following metals is the most prone to work hardening ?
A. Brass
B. Aluminium
C. Copper
D. Lead - The minimum carbon content in steel should be ____________________ percent for it to respond to a hardening treatment ?
A. 0.2
B. 0.4
C. 0.6
D. 0.8 - Case hardening of a material is__________________?
A. Followed by tempering or carburising
B. Preceded by its tempering
C. Done to get a soft ductile interior with a very hard surface
D. Carried out to get extreme hardness in its core
