Quick revision for PSC: carbon content range, white cast iron (abrasion resistance), chilled iron formation, weldability, nodular/ductile iron, and alloying grey cast iron for toughness.
Quick Notes
Use these before attempting the MCQs.
Composition
Cast iron is an alloy of iron with carbon and silicon. Typical carbon range: 2–4%.
White / chilled cast iron
Produced by lower silicon + rapid cooling. Very hard → abrasion resistant, difficult to machine, not weldable.
Nodular cast iron
Also called ductile iron / spheroidal graphite iron. Produced without heat treatment (as per notes).
Grey cast iron alloying
Alloyed with Ni/Cr/V/Cu to increase toughness.
MCQs
Tap “Show answer” to check instantly.
1) What is the typical carbon content range in cast iron?
2) Why is white cast iron used in components that require abrasion resistance?
3) Which type of cast iron is produced by lowering the silicon content and rapid cooling?
4) Which of the following cast iron is not weldable?
5) What is another name for nodular cast iron?
6) Why is grey cast iron alloyed with nickel, chromium, vanadium, or copper?
Need a structured plan?
Daily practice + weekly tests + mentor feedback — built for engineering graduates.
