Ignition temperature decreases progressively from anthracite to lignite, because___________________?

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...

Naphthalene is removed from coke oven gas by________________?

A. Scrubbing with wash oil (a petroleum product) B. Adsorbing on bog iron bed C. Absorbing in vetro-coke solution D. None of these...

Dust content in raw blast furnace gas is about _______________ gm/Nm3; hence it is cleaned to the dust level of about < 10 mg /Nm3 before use?

A. 15-30 B. 1-2 C. 70-100 D. 150-200...

During its calorific value determination by bomb calorimeter, coal is combusted by _________________?

A. Air B. Oxygen C. Oxygen enriched air D. None of these...