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Materials

Materials MCQ with Answers

Materials MCQ with Answers

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Related Materials MCQ with Answers

1) As compared to steel, the density of aluminum is about

half

one-third

one-fourth

one-fifth

Answer is:

one-third

Explanation:

.

2) As compared to copper, the conductivity (both thermal and electrical ) of aluminium is about

39%

49%

59%

69%

Answer is:

59%

3) What is produced when aluminium is oxidized by water ?

Hydrogen

Oxygen

Nitrogen

Carbon dioxide

Answer is:

Hydrogen

4) Which one of the following can penetrate the protective skin of aluminium and corrode the metal ?

Acidic substances

Alkaline substances

Both A and B

Neither A nor B

Answer is:

Alkaline substances

Materials MCQ with Answers

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