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. |
Which of the following injectors requires large chamber volume for good combustion? |
| A. | Sheet injector |
| B. | Showerhead injector |
| C. | Impinging-stream-type injector |
| D. | Multiple-hole injector |
| Answer» B. Showerhead injector | |
| 2. |
Non-impinging injector is also called as _________ injector. |
| A. | showerhead |
| B. | multiple-hole |
| C. | doublet |
| D. | like-on-like |
| Answer» B. multiple-hole | |
| 3. |
Which of the following can cause afterburning? |
| A. | Complete combustion |
| B. | Dribbling flow |
| C. | Sloshing in propellant tank |
| D. | Use of cold gas propellant system |
| Answer» C. Sloshing in propellant tank | |
| 4. |
To make a sharp, abrupt start to fuel injection _________ is used. |
| A. | pop valve |
| B. | check valve |
| C. | safety valve |
| D. | anti-dribble valve |
| Answer» B. check valve | |
| 5. |
The flow through injector manifold after the main valves are shut is called as ______ |
| A. | dribble flow |
| B. | main flow |
| C. | bleed flow |
| D. | pipe flow |
| Answer» B. main flow | |
| 6. |
A small manifold volume of an injector results in ________ and ________ |
| A. | less dribble; heavier injector |
| B. | more dribble; heavier injector |
| C. | less dribble; lighter injector |
| D. | more dribble; lighter injector |
| Answer» D. more dribble; lighter injector | |
| 7. |
A large complex manifold of an injector allows ________ and ________ |
| A. | high flow velocities; good distribution of flow over the chamber cross-section |
| B. | low flow velocities; good distribution of flow over the chamber cross-section |
| C. | high flow velocities; poor distribution of flow over the chamber cross-section |
| D. | low flow velocities; poor distribution of flow over the chamber cross-section |
| Answer» C. high flow velocities; poor distribution of flow over the chamber cross-section | |
| 8. |
_________ helps in the distribution of propellant from the injector inlet. |
| A. | Injector hole pattern |
| B. | Turbopump |
| C. | Preburner |
| D. | Gas generator cycle |
| Answer» B. Turbopump | |
| 9. |
The process by which liquids are broken into small droplets is called __________ |
| A. | atomization |
| B. | vaporization |
| C. | disintegrator |
| D. | pulverization |
| Answer» B. vaporization | |
| 10. |
The carburetor of an internal combustion engine has a similar function as __________ |
| A. | injector |
| B. | thrust chamber |
| C. | nozzle |
| D. | propellant tank |
| Answer» B. thrust chamber | |