Softening temperature of coal ash is a measure of the _____________ of coal?

Related Mcqs:

A fuel containing carbon and carbon monoxide (but containing no hydrogen or its compounds) is burnt in pure oxygen at constant pressure. Its gross calorific value as compared to net calorific value will be_________________?

A. More B. Less C. Same D. Data insufficient; can’t be predicted...

High rate of heating of coke ovens____________________?

A. May damage its walls due to abrupt excessive swelling of coal B. Produces larger size coke C. Increases the time of carbonisation D. None of these...

Tar yield in the low temperature and high temperature carbonisation of dry coal may be respectively ______________ percent?

A. 3 & 10 B. 10 & 3 C. 10 & 20 D. 15 & 8...

Which of the following is called “blue gas”?

A. Coke oven gas B. Water gas C. Natural gas D. Producer gas...

Assam (India) coals suffers mainly from the disadvantage of high ______________ content?

A. Ash B. Volatile matter C. Sulphur (4-6%) D. Moisture...