MCQOPTIONS
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MCQOPTIONS
This section includes 7 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. |
If the total propellant flow rate is 24 kg/s and the mixture ratio is 2.3, determine the mass flow rate of the oxidizer. |
| A. | 19.67 kg/s |
| B. | 15.33 kg/s |
| C. | 12.94 kg/s |
| D. | 16.73 kg/s |
| Answer» E. | |
| 2. |
Determine the mixture ratio if mass flow rate of the oxidizer is 3/4 times the total mass flow rate of the combustion products. |
| A. | 2.5 |
| B. | 3 |
| C. | 2 |
| D. | 1 |
| Answer» C. 2 | |
| 3. |
At what temperature are the liquid oxygen and the liquid hydrogen kept in their storage tanks of the cryogenic rocket engine? |
| A. | -253°C and -183°C |
| B. | -183°C and -253°C |
| C. | -253°C for both |
| D. | -183°C for both |
| Answer» C. -253°C for both | |
| 4. |
Which of the following ways of thrust chamber cooling may use niobium metal? |
| A. | Film cooling |
| B. | Cooling jacket |
| C. | Radiation cooling |
| D. | Ablative cooling |
| Answer» D. Ablative cooling | |
| 5. |
The thruster is also called as _____________ |
| A. | combustion chamber |
| B. | thrust chamber |
| C. | nozzle |
| D. | injector |
| Answer» C. nozzle | |
| 6. |
How are liquid rocket engines classified on the basis of their feed system? |
| A. | Pressurized or turbopump |
| B. | Restartable or single fired |
| C. | Single flight or reusable |
| D. | Boosting or auxiliary |
| Answer» B. Restartable or single fired | |
| 7. |
What kind of propulsion is used for trajectory adjustments and attitude corrections? |
| A. | Boosting propulsion |
| B. | Auxiliary propulsion |
| C. | Sustaining propulsion |
| D. | Cryogenic propulsion |
| Answer» C. Sustaining propulsion | |