An alloy steel which is work hardenable and which is used to make the blades of bulldozers, bucket wheel excavators and other earth moving equipment contain iron, carbon and
A. Chromium
B. Silicon
C. Manganese
D. Magnesium
Answer: Option C
Solution(By Examveda Team)
Manganese increases hardenability and tensile strength of steel, but to a lesser extent than carbon.It is also able to decrease the critical cooling rate during hardening, thus increasing the steels hardenability much more efficient than any other alloying elements.
Manganese is used to make the blades of bulldozers, bucket wheel excavators and other earth moving equipment contain iron.
Related Questions on Engineering Materials
Manganese is added in low carbon steel to
A. Make the steel tougher and harder
B. Raise the yield point
C. Make the steel ductile and of good bending qualities
D. All of the above
The elastic stress strain behavior of rubber is
A. Linear
B. Nonlinear
C. Plastic
D. No fixed relationship
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