Work hardenable alloy steel used to make the bucket wheel excavators, blades of bulldozers and other earth moving equipments contain iron, carbon and

Work hardenable alloy steel used to make the bucket wheel excavators,

1.	Work hardenable alloy steel used to make the bucket wheel excavators, blades of bulldozers and other earth moving equipments contain iron, carbon and
A.	manganese
B.	silicon
C.	nickel
D.	chromium
Answer» B. silicon

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Work hardenable alloy steel used to make the bucket wheel excavators, blades of bulldozers and other earth moving equipments contain iron, carbon and

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