MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Rocket Propulsion knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Evaporation is a major concern for __________ |
| A. | cryogenic propellants |
| B. | monopropellants |
| C. | bipropellants |
| D. | solid propellants |
| Answer» B. monopropellants | |
| 2. |
A good liquid propellant will have ___________ |
| A. | easy deterioration |
| B. | resistance to deterioration |
| C. | absorption of moisture |
| D. | small amount of impurities |
| Answer» C. absorption of moisture | |
| 3. |
What is the average specific gravity(δav) if the specific gravity of the fuel (δf) is 0.792, the specific gravity of the oxidizer is (δo) is 1.02 and the mixture ratio (r) is 4? |
| A. | 0.96 |
| B. | 0.94 |
| C. | 1.01 |
| D. | 0.98 |
| Answer» B. 0.94 | |
| 4. |
Which of the following is not a desirable property of a liquid propellant? |
| A. | Low freezing point |
| B. | Low specific gravity |
| C. | Stability |
| D. | High specific heat |
| Answer» C. Stability | |
| 5. |
What is O-ring in a chemical rocket engine? |
| A. | A kind of seal |
| B. | A type of injector |
| C. | A type of pipe network |
| D. | A kind of control system |
| Answer» B. A type of injector | |
| 6. |
Which among the following propellants is not corrosive? |
| A. | Liquid oxygen |
| B. | Nitric acid |
| C. | Nitrogen tetroxide |
| D. | Liquid Fluorine |
| Answer» B. Nitric acid | |
| 7. |
Which of the following chemical particles cannot be suspended in liquid fuel to increase specific impulse? |
| A. | Boron |
| B. | Beryllium |
| C. | Aluminium |
| D. | Fluorine |
| Answer» E. | |
| 8. |
Which of the following is not a factor considered in the selection of liquid propellant for a rocket engine? |
| A. | Economic |
| B. | Performance |
| C. | Safety |
| D. | Injector pattern |
| Answer» E. | |
| 9. |
Which of the following propellants were used in the Titan mission? |
| A. | 50% UDMH + 50% hydrazine |
| B. | RP1 |
| C. | RDX |
| D. | Aviation gasoline |
| Answer» B. RP1 | |