MCQOPTIONS
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MCQOPTIONS
This section includes 74 Mcqs, each offering curated multiple-choice questions to sharpen your Energy Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
How much percentage of solid content is present in anaerobic digestion? |
| A. | 0.08 |
| B. | 0.02 |
| C. | 0.32 |
| D. | 0.5 |
| Answer» B. 0.02 | |
| 52. |
'ATP and NADPH are used to fix CO2 into carbohydrates' this process is termed as ________ |
| A. | Carbon fixation |
| B. | Reduction |
| C. | Carbon dating |
| D. | Oxidation |
| Answer» B. Reduction | |
| 53. |
Which plant has no movable parts? |
| A. | KVIC |
| B. | JANATA model |
| C. | Pragati design plant |
| D. | Ferro - cement plant |
| Answer» C. Pragati design plant | |
| 54. |
Agitation is performed ___________ |
| A. | Mechanically |
| B. | Manually |
| C. | By help of cattle |
| D. | Feedstock |
| Answer» B. Manually | |
| 55. |
The central part of an anaerobic plant in an enclosed tank is known as ____________ |
| A. | Pit |
| B. | Digester |
| C. | Mixer |
| D. | Feeder |
| Answer» C. Mixer | |
| 56. |
What is the life time of Floating drum plant? |
| A. | Short |
| B. | Large |
| C. | Life time |
| D. | Average |
| Answer» B. Large | |
| 57. |
Which is the region within thylakoid where water is split into oxygen? |
| A. | Foramen |
| B. | Serosa |
| C. | Lumen |
| D. | Mucosa |
| Answer» D. Mucosa | |
| 58. |
Which part of the janata bio gas plant comprises of the fermentation chamber and the gas storage chamber? |
| A. | Foundation |
| B. | Digester |
| C. | Inlet chamber |
| D. | Outlet chamber |
| Answer» C. Inlet chamber | |
| 59. |
What is anaerobic digestion PH range? |
| A. | 6.0 - 8.0 |
| B. | 1.3 – 4.2 |
| C. | 2.5 - 6.5 |
| D. | 7.2 - 10.0 |
| Answer» B. 1.3 – 4.2 | |
| 60. |
Which of the following two are most important nutrients? |
| A. | Carbon and nitrogen |
| B. | Methane and carbon |
| C. | Methane and oxygen |
| D. | Methane and nitrogen |
| Answer» B. Methane and carbon | |
| 61. |
What should be the ratio of raw material to water? |
| A. | 1:1 |
| B. | 4:1 |
| C. | 5:2 |
| D. | 3:6 |
| Answer» B. 4:1 | |
| 62. |
Which is the initial issue of the biogas plant? |
| A. | Feedstock |
| B. | Contaminants |
| C. | Moisture contents |
| D. | Nutrients |
| Answer» B. Contaminants | |
| 63. |
Choose the general formula of carbohydrates? |
| A. | [C2H2O2]n |
| B. | [CHO]n |
| C. | [CH2O]n |
| D. | [C2O2]n |
| Answer» D. [C2O2]n | |
| 64. |
Which is the gasifier that can be operated in small scale/amounts? |
| A. | Counter current gasifier |
| B. | Cross draught gasifier |
| C. | Co-current gasifier |
| D. | Fluidized bed gasifier |
| Answer» C. Co-current gasifier | |
| 65. |
What is BTU used to measure? |
| A. | Heat content |
| B. | Area |
| C. | Density |
| D. | Volume |
| Answer» B. Area | |
| 66. |
How is biogas from an anaerobic digester collected? |
| A. | In a compressor |
| B. | In the pipelines |
| C. | In inverted drum |
| D. | In a storage tank |
| Answer» D. In a storage tank | |
| 67. |
Energy plantation does not have any impact on Bio-energy? |
| A. | True |
| B. | False |
| Answer» C. | |
| 68. |
Which gas can be chemically converted into other fuels or products, burned in a conventional boiler, or used instead of natural gas in gas turbine? |
| A. | Freon |
| B. | Natural gas |
| C. | Syngas |
| D. | Noble gas |
| Answer» D. Noble gas | |
| 69. |
What happens if the organic matter is not stirred while in process of digestion? |
| A. | It will evaporate |
| B. | It solidifies |
| C. | It will form hard scum on layer |
| D. | It gets struck to digester walls |
| Answer» D. It gets struck to digester walls | |
| 70. |
Which type of plant is portable? |
| A. | Flexible Bag biogas plant |
| B. | Fixed dome biogas plant |
| C. | Floating drum biogas plant |
| D. | Khadi and village industries type biogas plant |
| Answer» B. Fixed dome biogas plant | |
| 71. |
How much thick layer of insulation is done inside of digester? |
| A. | 10 cm |
| B. | 15 - 25 mm |
| C. | 8 mm |
| D. | 50 - 100 cm |
| Answer» E. | |
| 72. |
Mixing biomass with fossil fuels in conventional power plants is referred to as ___________ |
| A. | Agitation |
| B. | Infuse |
| C. | Co-firing |
| D. | Interbreed |
| Answer» D. Interbreed | |
| 73. |
What is the main advantage of flexible bag plant? |
| A. | The fabrication can be centralized for mass production |
| B. | It has highest gas storage capacity |
| C. | It is portable from place to place |
| D. | Easy to understand and work on it |
| Answer» B. It has highest gas storage capacity | |
| 74. |
How many weeks does complete digestion of cow manure takes about? |
| A. | 1 |
| B. | 2 |
| C. | 4 |
| D. | 8 |
| Answer» E. | |