Material for Machine Shafts

What is a common material used in machine shafts?

A. Cold rolled steel

B. Copper

C. Pewter

D. Iron

Answer:

Cold rolled steel

A common material used in machine shafts is cold rolled steel. Cold rolled steel is often used for machine shafts due to its strength and resistance to deformation and breakage. Copper, iron, and pewter can also be used, but cold rolled steel is generally preferred for its superior mechanical properties.

Explanation:

A common material used in machine shafts is cold rolled steel. Cold rolled steel is a popular choice for machine shafts because of its excellent tensile strength, high toughness, and low ductility, rendering it resistance to deformation and breakage during operation. It's critical to note that other materials such as copper, iron, or pewter are also used, but the relatively superior mechanical properties of cold rolled steel make it more commonly preferred for machined shafts.