Relevant Competitive Tests:
A coal with high ash content is undesirable, as________________?
A. It is abrasive to the coal pulveriser (i.e. ball mill) and the combustion chamber
B. The ash in molten condition gets absorbed in the pores of the refractory lining of the furnace
C. The ash retains the sulphur & phosphorus and thus affects the quality of products in
D. All A., B. and C.Correct Answer
Correct Option: D. All A., B. and C.
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