Which of the following has the highest theoretical flame temperature ?

Related Mcqs:

Bulk density of pulverised coal may be about ______________ kg/m3?

A. 100 B. 500 C. 1000 D. 1500...

A coal gasifier operating at 20 atm. (e.g. Lurgi gasifier) as compared to one operating at atmospheric pressure (e.g. Kopper-Totzek or Winkler gasifier) will produce a gas having _____________________?

A. Higher methane content and thus higher calorific value B. Higher carbon monoxide content C. Lower carbon dioxide content D. None of these...

Number of macrocomponents present in coal according to Stopes are ___________________?

A. Four B. Five C. Six D. Two...

A sample of natural gas containing 80% methane (CH4) and rest nitrogen (N2) is burnt with 20% excess air. With 80% of the combustibles producing CO2 and the remainder going to CO, the Orsat analysis in volume percent is_________________?

A. CO2 : 6.26, CO : 1.56, O2 : 3.91, H2O :15.66, N2 : 72.60 B. CO2 : 7.42, CO : 1.86, O2 : 4.64, N2:86.02 C. CO2 : 6.39, CO : 1.60, O2 : 3.99, H2O:25.96, N2:72.06 D. CO2 : 7.60, CO : 1.90, O2 : 4.75, N2 : 85.74...

Natural draft created by the chimney depends upon _____________________?

A. Temperature of the flue gas B. Its height C. Both A. & B. D. Neither A. nor B....