MCQOPTIONS
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MCQOPTIONS
This section includes 10 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. |
Determine the density specific impulse (Id) if the specific impulse is 315 s and the average density of the propellants is 840 kg/m3. Take the reference density to be the maximum density of water. |
| A. | 264.6 s |
| B. | 251.3 s |
| C. | 279.5 s |
| D. | 304.4 s |
| Answer» B. 251.3 s | |
| 4. |
What is the average specific gravity( av) if the specific gravity of the fuel ( f) is 0.792, the specific gravity of the oxidizer is ( o) 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 | |
| 5. |
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 | |
| 6. |
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 | |
| 7. |
Which among the following propellants is not corrosive? |
| A. | Liquid oxygen |
| B. | Nitric acid |
| C. | Nitrogen tetroxide |
| D. | Liquid Fluorine |
| Answer» B. Nitric acid | |
| 8. |
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. | |
| 9. |
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. | |
| 10. |
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 | |