Finely powdered clay and limestone mixed with water is introduced in:

drum mixer

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rotary kiln

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pan-type granulator

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dryer

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Solution

The correct option is B rotary kiln
A rotary kiln is a pyroprocessing device used to raise materials to a high temperature (calcination) in a continuous process. Materials produced using rotary kilns include cement, lime.

Cement kilns are used for the pyro-processing stage of manufacture of Portland and other types of hydraulic cement, in which calcium carbonate reacts with silica-bearing minerals to form a mixture of calcium silicates.

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Question 9

In a filtration plant, water is filtered using layers of
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