Question

What is the specific gravity of aluminum?

(a) 8.96 gm/cm^3

(b) 19.30 gm/cm^3

(c) 2.70 gm/cm^3

(d) 10.49 gm/cm^3

I had been asked this question in examination.

My enquiry is from High Conductivity Materials in division Electrical Engineering Materials of Design of Electrical Machines

Answer 1

Right answer is (c) 2.70 gm/cm^3

For explanation: 8.96 gm/cm^3 is the specific gravity of Copper. 19.30 gm/cm^3 relates to the specific gravity of Gold and 10.49 gm/cm^3 is the specific gravity of Silver.