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Q: Which of the following is a ductile material?
  • A. cast iron
  • B. copper
  • C. glass
  • D. concrete
Correct Answer: Option B - Ductile :- It is the ability to be stretched. It is often characterized as the materials ability to be pulled into a wire. Ductile material :- Brass, copper, aluminium, mild steel etc. Brittle material :- Glass, ceramic, graphite etc.
B. Ductile :- It is the ability to be stretched. It is often characterized as the materials ability to be pulled into a wire. Ductile material :- Brass, copper, aluminium, mild steel etc. Brittle material :- Glass, ceramic, graphite etc.

Explanations:

Ductile :- It is the ability to be stretched. It is often characterized as the materials ability to be pulled into a wire. Ductile material :- Brass, copper, aluminium, mild steel etc. Brittle material :- Glass, ceramic, graphite etc.