Engineering Materials

A. adding carbon up to 2.8%
B. adding carbon up to 6.3%
C. adding carbon up to 0.83%
D. adding small quantities of copper
E. adding copper and carbon

A. aluminium
B. low carbon steel
C. medium carbon steel
D. high carbon steel
E. cast iron

A. hot hardness
B. toughness
C. wear resistance
D. sharp cutting edge
E. cold hardness

A. acts as deoxidiser
B. reduces the grain size
C. decreases tensile strength and hardness
D. lowers the toughness and transverse ductility
E. increases hardness

A. decrease
B. increase
C. remain constant
D. first increase and then decrease
E. first decrease and then increase

A. ability to undergo large permanent deformations in compression
B. ability to recover its original form
C. ability to undergo large permanent deformations in tension
D. all of the above
E. none of the above

A. by forming a bulge (l>) by shearing along oblique plane
B. in direction perpendicular to application of load
C. by crushing into thousands of pieces
D. none of the above

A. creep
B. fatigue
C. endurance
D. plastic deformation
E. non-plastic deformation

A. 1010
B. TO16
C. 1022
D. 1040
E. 1052

A. linear
B. non-linear
C. plastic
D. no fixed relationship
E. unpredictable behaviour