Question

As the materials pass through the kiln their temperature is rised upto ____

(a) 1300-1600 °C

(b) 1100-1500 °C

(c) 1300-1500 °C

(d) 1100-1600 °C

This question was posed to me in an online quiz.

This question is from Manufacture of Portland Cement in chapter Cement of Concrete Technology

Answer 1

The correct option is (a) 1300-1600 °C

For explanation: 1300-1600 °C is the best range to melt the raw materials for a healty PC. Below 1300 °C the materials whcih we added to make PC won’t melt perfectly and the result will be unhealty PC.