MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Biomass Energy knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Ash sticks to the side in a cross-draft gasifier. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
How does air enter and exit in a cross-draft gasifier? |
| A. | Air enters from one of the sides and exits from the top |
| B. | Air enters from one side and exits from the other |
| C. | Air enters from one of the sides and exits from the bottom |
| D. | Air enters from the bottom and exits from the top |
| Answer» C. Air enters from one of the sides and exits from the bottom | |
| 3. |
Which of the following are keys to design a gasifier? |
| A. | Reducing biomass to charcoal and converting charcoal at suitable temperature to produce carbon monoxide and hydrogen |
| B. | Oxidizing biomass to charcoal and converting charcoal at suitable temperature to produce carbon monoxide and hydrogen |
| C. | Reducing biomass to charcoal and converting charcoal at suitable temperature to produce carbon dioxide and hydrogen |
| D. | Oxidizing biomass to charcoal and converting charcoal at suitable temperature to produce carbon dioxide and hydrogen |
| Answer» B. Oxidizing biomass to charcoal and converting charcoal at suitable temperature to produce carbon monoxide and hydrogen | |
| 4. |
Which of the following applications can the producer gas be used for? |
| A. | Producing nickel |
| B. | Producing copper |
| C. | Producing glucose |
| D. | Producing methanol |
| Answer» E. | |
| 5. |
Which of the following applications is the product gas from downdraft gasifier suitable for? |
| A. | Fuel for combustion engine |
| B. | Fuel for burning wood |
| C. | Fuel for internal combustion engine |
| D. | Fuel for household purposes |
| Answer» D. Fuel for household purposes | |
| 6. |
The tar content of the product gas in downdraft gasifier is _______ updraft gasifier. |
| A. | equal to |
| B. | less than |
| C. | greater than |
| D. | cleaner than |
| Answer» C. greater than | |
| 7. |
How is the biomass material and gasification agent fed into a downdraft gasifier? |
| A. | Biomass from top, gasifying agent from top |
| B. | Biomass from top, gasifying agent from bottom |
| C. | Biomass from bottom, gasifying agent from left side |
| D. | Biomass from top, gasifying agent from right side |
| Answer» B. Biomass from top, gasifying agent from bottom | |
| 8. |
The product gas removed from the low temperature zone undergoes _______ before being used as fuel in combustion for electricity generator. |
| A. | liquefaction |
| B. | condensation |
| C. | evaporation |
| D. | cleaning |
| Answer» E. | |
| 9. |
What is the contaminant in the product gas that is withdrawn from a low temperature zone in a fixed bed gasifier? |
| A. | Gold |
| B. | Platinum |
| C. | Tar |
| D. | Nickel |
| Answer» D. Nickel | |
| 10. |
How is the biomass material and gasification agent fed into an updraft gasifier? |
| A. | Biomass from top, gasifying agent from top |
| B. | Biomass from top, gasifying agent from bottom |
| C. | Biomass from bottom, gasifying agent from top |
| D. | Biomass from bottom, gasifying agent from bottom |
| Answer» C. Biomass from bottom, gasifying agent from top | |
| 11. |
Biomass is moved at a very slow rate in fixed bed gasifier. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
What are the three main types of gasifiers? |
| A. | Fixed bed, hydrothermal liquefaction and carbonisation |
| B. | Fixed bed, fluidized gasifiers and carbonisation |
| C. | Carbonisation, liquefaction and entrained flow gasifiers |
| D. | Fixed bed, fluidized gasifiers and entrained flow gasifiers |
| Answer» E. | |
| 13. |
Which of the following temperature ranges are suitable for biomass gasification? |
| A. | Above 1000 degree Celsius |
| B. | Between 500 and 600 degree Celsius |
| C. | Between 700 and 1000 degree Celsius |
| D. | Less than 500 degree Celsius |
| Answer» D. Less than 500 degree Celsius | |
| 14. |
What is water-gas shift reaction? |
| A. | Carbon dioxide + water → Carbon monoxide + Hydrogen + small heat |
| B. | Carbon monoxide + water → Carbon dioxide + Hydrogen + small heat |
| C. | Carbon dioxide + water + heat → Carbon monoxide + Hydrogen |
| D. | Carbon monoxide + water + heat → Carbon dioxide + Hydrogen |
| Answer» C. Carbon dioxide + water + heat → Carbon monoxide + Hydrogen | |
| 15. |
Which of the following is a product of biomass gasification? |
| A. | Hydrogen |
| B. | Steel |
| C. | Carbon (solid) |
| D. | Iron |
| Answer» B. Steel | |