Question:-
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
Option (A)
Chromium
Option (B)
Silicon
Option(C)
Manganese
Option(D)
Magnesium
Correct Option:
(C)
Question Solution:
Hadfield manganese steel has high surface hardness and tough core so used as bulldozer blades
question-answer-faq-2942