alleryStart learning →In the wet process of Portland cement manufacture, the rotary kiln operates with a hottest-zone temperature of approximately:
AAbout 800 degree C
BAbout 1500 degree C
CAbout 1200 degree C
DAbout 2000 degree C
Answer & Solution
Correct answer: B. About 1500 degree C
1. §1.2 (d) states: 'The temperature in the hottest part of the kiln is about 1500 degree C resulting in the slurry getting converted into a fused mass of 3 mm to 20 mm size known as clinker.'
2. The other options are out of the named range.
_Source: IGNOU ET-522 Block-1 Unit-1 Cement, §1.2(d), p. 6_
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