77) The steel widely used for motor car crankshafts is
Answer is:
chromium steel
Related Engineering Materials MCQ with Answers
Answer is:
generators and transformers in the form of laminated cores
Explanation:
The silicon steel is widely used for Generators and transformers in the form of laminated cores
Answer is:
High speed steel, Carbide, Diamond
Answer is:
are free from oxygen
Explanation:
When steel has been fully deoxidized before casting and no gas was evolved during solidification, the resultant steel is known as killed steel. It is combined with an agent like casting before use. This steel is called "killed" because it quietly solidifies in the mold and no gas evolves.