Engineering Materials MCQ with Answers

211) Large forgings, crank shafts, axles normally contain carbon up to

Answer is:

0.45 to 0.55%

Explanation:

Large forgings, crank shafts, axles made from cast iron or forged steel. Steel is usually used in high loading situations, and this steel contains carbon up to 0.45 to 0.55%.

212) Heavy duty leaf and coil spring* contain carbon of the following order

Answer is:

0.01

213) Taps, dies and drills contain carbon

Answer is:

above 1%

214) Drop forging dies contain carbon of the order of

Answer is:

0.6 to 0.7%

215) Which is the false statement about wrought iron. It has

Answer is:

uniform strength in all directions.

Explanation:

Physical properties of wrought iron are listed below: Soft and Tough Ductile Hight tensile Strength High compressive strength Easily forged and weldable