General Science - Physics (Basics)
Which of the following statements about duralumin is correct?
Which of the following statements about duralumin is correct?
hard Q9 of 15
Step-by-Step Solution
Step 1: Understand the concept
The question tests detailed knowledge of duralumin composition and uses.Step 2: Analyze options
Duralumin is an alloy of aluminium with copper, manganese, and magnesium, valued for its strength and light weight, making it ideal for aircraft manufacturing. Copper and zinc form brass, not duralumin. Corrosion-resistant alloys for surgical instruments are stainless steel. Iron and carbon form steel used in construction.Step 3: Eliminate incorrect options
Brass is copper and zinc, not duralumin. Stainless steel is corrosion-resistant but not duralumin. Steel is iron and carbon, unrelated to duralumin.Final Answer:
It is an alloy of aluminium, copper, manganese, and magnesium used in aircraft manufacturing. → Option BQuick Check:
Duralumin composition and use = Aluminium alloy for aircraft ✅
Quick Trick: Duralumin = Aluminium + Cu + Mn + Mg for aircraft.
Common Mistakes:
- Confusing duralumin with brass or stainless steel.
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