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A. Increases its calorific value
B. Decreases its calorific value
C. Does not alter its calorific value
D. Is not possible on commercial scale
Related Mcqs:
- To avoid fire by spontaneous combustion of coal due to its low temperature oxidation, it should be stored in___________________?
- A. Shallow and small piles B. Fine sizes without the presence of any lump C. Closed space without any ventilation facility D. Large heaps with small surface to volume ratio...
- Catalyst used in Fischer-Tropsch process is_______________?
- A. Nickel B. Zinc oxide C. Alumina D. Thorium oxide...
- Short/intense flame is produced during combustion of gaseous fuel by using________________?
- A. High amount/current of combustion air B. Low amount/current of combustion air C. Preheated secondary air D. Very little excess air...
- In high temperature carbonisation (as compared to low temperature carbonisation) of coal___________________?
- A. Coke oven gas yield is more B. Tar yield is less but free carbon in tar is more C. Calorific value of coke oven gas is less D. All A., B. and C....
- The ratio of maximum adiabatic flame temperature in air to that in pure oxygen is always___________________?
- A. 1 B. < 1 C. > 1 D. Unpredictable...
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