A. 78-81%
B. 81-85%
C. 85-90%
D. 90-95%
E. 95-100%.
Related Mcqs:
- Caking coals are those which __________________________?
A. form lumps or masses of coke
B. burn freely
C. show little or no fusing action
D. burn completely
E. do not form ash - High carbon content in diesel oil used for diesel engine leads to_________________?
A. production of highly corrosive gases corroding the cylinder walls and exhaust system
B. excessive engine wear
C. damaging of both the storage tank and the engine
D. deposition on engine parts
E. none of the above. - Which of the following solid fuel has high carbon content?
A. Coke
B. Coal
C. Peat
D. None of theseSubmitted by: Faheem Zaman Dhaunroo
- The percentage of carbon in low carbon steel is__________________?
A. 0.05%
B. 0.15%
C. 0.3%
D. 0.5%
E. 0.7%. - High carbon steel carries carbon %age c_________________?
A. 0.1 to 0.3%
B. 0.3 to 0.6%
C. 0.6 to 0.8%
D. 0.8 to 1.5%
E. 1.5 to 2.5%. - Carbon steel is_______________?
A. made by adding carbon in steel
B. refined from cast iron
C. an alloy of iron and carbon with varying quantities of phosphorus and sulphur
D. extensively used for making cutting tools
E. extremely brittle - 02 content in atmospheric air on volume basis is___________________?
A. 21%
B. 23%
D. 30%
D. 40%
E. 70% - Sulphur content of fuels is very important to the plant operators because it____________________?
A. has high heating value
B. retards electric precipitation
C. promotes complete combustion
D. has highly corrosive effect
E. facilitates ash removal - For burning 1 kg of carbon to CO as per chemically correct combusiton, amount of air required is___________________?
A. 1 kg
B. 4/3kg
C. 8/3kg
D. 2 kg
E. 16/3 kg - The coal requirement per kW hour generation in the thermal power plant is of the order of__________________?
A. 0.1 to 0.2 kg
B. 0.2 to 0.4 kg
C. 0.6 to 0.8 kg
D. 1.0 to 1.5 kg
E. 1.5 to 2 kg
