Download Aptitude Crack
img not found img not found

UPSC Civil Service Exam Questions - Engineering

Q1:

Ultimate strength of cement is influenced by which one of the following ?

A Tricalcium silicate

B Dicalcium silicate

C Tricalcium aluminate

D Tetracalcium alumino-ferrite

ANS:B - Dicalcium silicate

Tricalcium silicate gives early strength.

Tricalcium aluminate gives initial strength.