Download Aptitude Crack
img not found img not found

Building Materials

Q1: A good brick earth should contain :

A about 20% to 30% of alumina

B about 50% to 60% of silica

C not more than 5% of lime

D about 5 to 6% of oxide of lime

E All the above.

ANS:E - All the above.

Normally, bricks contain the following ingredients:


Silica (sand) : 50% to 60% by weight.
Alumina (clay) : 20% to 30% by weight.
Lime : 2 to 5% by weight.
Iron oxide : 7% by weight.
Magnesia : Less than 1% by weight.



img not found
img

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.