1.

Aluminium roof sheeting consists of aluminium alloyed with ________(a) Silica(b) Carbon(c) Magnesium(d) ManganeseI have been asked this question in an interview.My question is from Roof Coverings for Pitched Roofs in division Roofing Materials of Construction & Building Materials

Answer»

Correct answer is (d) Manganese

The explanation is: ALUMINIUM ROOF sheeting is the lightest of all the roofing MATERIALS. It consists of aluminium ALLOYED with manganese. Manganese is present in a very small amount to impart STRENGTH.



Discussion

No Comment Found

Related InterviewSolutions