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Which one of the below is rarely used as fuel in burning stage of wet process of cement manufacturing?(a) Wood(b) Gas(c) Pulverised coal(d) Fuel oilThe question was asked in final exam.This intriguing question originated from Manufacture of Cement topic in chapter Materials for Construction of Basic Civil Engineering

Answer»

Correct choice is (a) Wood

Easiest explanation: Clinkers are FORMED at a temperature of 1450^o c.Wood BURNS at a temperature of 593^oc, natural gas at 2000^oc, coal at 3500^oc and OIL at 2150^oc.Wood cannot offer higher temperature at lower cost, TIME and ENERGY.



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