MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Industry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is HTPB? |
| A. | An oxidizer |
| B. | A metallic fuel |
| C. | Curing agents |
| D. | Binder |
| Answer» E. | |
| 2. |
Polysulfide is which types of propellants? |
| A. | Composite propellants |
| B. | cmdb |
| C. | Single base propellants |
| D. | Double base propellants |
| Answer» B. cmdb | |
| 3. |
In which type of burning process of solid propellants usually a solid grain is used? |
| A. | Progressive burn |
| B. | Digressive burn |
| C. | Neutral burn |
| D. | Natural burn |
| Answer» C. Neutral burn | |
| 4. |
How methyl borate is prepared? |
| A. | CH<sub>3</sub>OH + B<sub>2</sub> |
| B. | CH<sub>3</sub>OH + B<sub>3</sub>H<sub>3</sub>O<sub>6</sub> |
| C. | CH<sub>3</sub>OH + B<sub>3</sub>H<sub>3</sub> |
| D. | CH<sub>3</sub>OH + B<sub>2</sub>O<sub>4</sub> |
| Answer» C. CH<sub>3</sub>OH + B<sub>3</sub>H<sub>3</sub> | |
| 5. |
Which process is used in sodium hypochlorite process to produce final product of anhydrous hydrazine? |
| A. | Azeotropic distillation |
| B. | Evaporation |
| C. | Continuous distillation |
| D. | Batch distillation |
| Answer» B. Evaporation | |
| 6. |
Ammonia-sodium hypochlorite process is associated with which type of propellants production? |
| A. | Boron-hydrogen compounds |
| B. | HNO<sub>3</sub> |
| C. | N<sub>2</sub>O<sub>4</sub> |
| D. | Hydrazine |
| Answer» E. | |
| 7. |
What is the major disadvantage associated with solid propellants compared to liquid propellants? |
| A. | Temperature sensitivity |
| B. | High pressure |
| C. | Low pressure |
| D. | Insensitive to friction |
| Answer» B. High pressure | |
| 8. |
Which one is not an ideal performance criterion for propellants? |
| A. | Non-corrosive |
| B. | Low toxicity |
| C. | Low density |
| D. | High heat of reaction |
| Answer» D. High heat of reaction | |
| 9. |
What is hydrazine ? |
| A. | Hypergolic material |
| B. | Non-hypergolic material |
| C. | Principal oxidizers |
| D. | Principal fuels |
| Answer» E. | |
| 10. |
Nitromethane is which type of propellants? |
| A. | Monopropellants |
| B. | Bipropellant |
| C. | Solid propellants |
| D. | Liquid propellants |
| Answer» E. | |