MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
__________ is one of the most important materials is also known as solar grade silicon. |
| A. | Crushed silicon |
| B. | Crystalline silicon |
| C. | Powdered silicon |
| D. | Silicon |
| Answer» C. Powdered silicon | |
| 2. |
The hydrogen-oxygen fuel cells have electrolyte solution of 2.5% __________ |
| A. | KOH |
| B. | NaOH |
| C. | Na(OH)2 |
| D. | Mg(OH)2 |
| Answer» B. NaOH | |
| 3. |
Different types of turbines are used depending on the head and flow at site. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
In methyl alcohol-oxygen alkaline fuel cell ___________ is used as the fuel. |
| A. | CH3OH |
| B. | CH3COOH |
| C. | O2 |
| D. | O3 |
| Answer» B. CH3COOH | |
| 5. |
___________ is in high concentration in methanol that is why it is used as an excellent fuel. |
| A. | Oxygen |
| B. | Chlorine |
| C. | Hydrogen |
| D. | Ozone |
| Answer» D. Ozone | |
| 6. |
The standard emf of the hydrogen-oxygen fuel is ____________ |
| A. | 1V |
| B. | 1.23V |
| C. | 1.52V |
| D. | 2V |
| Answer» C. 1.52V | |
| 7. |
Porous nickel electrode coated with ________ is used as catalyst in methyl alcohol-oxygen alkaline fuel cell. |
| A. | Copper |
| B. | Silver |
| C. | Gold |
| D. | Antimony |
| Answer» C. Gold | |
| 8. |
Fuel cells are characterized by the ____________ |
| A. | High efficiency |
| B. | High noise levels |
| C. | Vibrations are present |
| D. | No heat transfer |
| Answer» B. High noise levels | |
| 9. |
Bio diesel is produced by the __________ of the vegetable oil. |
| A. | Fermentation |
| B. | Distillation |
| C. | Transesterification |
| D. | Rectification |
| Answer» D. Rectification | |
| 10. |
Unlike other power plants, in geothermal power plants no __________ is burned. |
| A. | Kerosene |
| B. | Petrol |
| C. | Bio gas |
| D. | Fossil fuel |
| Answer» E. | |
| 11. |
Most of the future geothermal power plants will be of ____________ type. |
| A. | Dry stream geothermal plants |
| B. | Flash geothermal plants |
| C. | Binary geothermal plants |
| D. | Neither dry stream nor flash |
| Answer» D. Neither dry stream nor flash | |
| 12. |
Binary geothermal power plants, the hot water is passed by a secondary fluid with less boiling point than ____________ |
| A. | Water |
| B. | 0oC |
| C. | 50oC |
| D. | 100oC |
| Answer» B. 0oC | |
| 13. |
Flash geothermal power plants turns the high pressure hot water into___________ |
| A. | Low pressure hot water |
| B. | Low pressure cool water |
| C. | High pressure hot water |
| D. | High pressure hot water |
| Answer» C. High pressure hot water | |