Yield of charcoal in high temperature carbonisation of wood is about _____________ percent?

Related Mcqs:

Nitrogen in coal_________________?

A. Is present upto 1-2% B. Comes from protein in parent vegetable matter C. Is recovered as ammonia during its carbonisation D. All A., B. and C....

A travelling grate stoker is meant for the efficient burning of ______________ coal?

A. Caking B. Pulverised C. Non-caking D. High ash...

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...

High pressure coal gasification is employed in ________________ process?

A. Lurgi B. Kopper-Totzek C. Winkler D. None of these...

Junker’s calorimeter is used to determine the calorific value of______________________?

A. Pulverised coal B. Gaseous fuels C. Fuel oil D. None of these...