Spacecraft Trajectories — MCQs

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1. What is a spacecraft trajectory?





2. Which law primarily governs spacecraft trajectories?





3. A Hohmann transfer orbit is used for:





4. A gravity assist maneuver is also known as:





5. Gravity assists allow spacecraft to:





6. The escape velocity from Earth is approximately:





7. Which trajectory is used to escape the gravitational field of a planet?





8. A geostationary orbit requires a period of:





9. Which orbit keeps a satellite fixed above one point on Earth?





10. A transfer orbit between Earth and Mars is typically:





11. Delta-v in spacecraft missions refers to:





12. Which orbit allows continuous coverage of polar regions?





13. The Apollo missions to the Moon used a:





14. Spacecraft trajectory corrections are done using:





15. A spacecraft on a parabolic trajectory has:





16. Which type of orbit is typically used for weather satellites?





17. A Lagrange point is a region where:





18. Which Lagrange point is used for the James Webb Space Telescope?





19. A Molniya orbit is a type of:





20. Aerobraking is used to:





21. The Interplanetary Transport Network uses:





22. Orbital insertion involves:





23. Which spacecraft used multiple gravity assists to reach Mercury?





24. Which trajectory allowed Voyager 2 to visit all four giant planets?





25. The Oberth effect enhances:





26. Which orbit is ideal for reconnaissance satellites?





27. Escape trajectories are always:





28. Which orbital maneuver is used to match orbital planes?





29. Time of flight in a Hohmann transfer depends on:





30. Which planet provides the strongest gravity assist in the Solar System?





31. The Tsiolkovsky rocket equation relates:





32. A spacecraft in Low Earth Orbit (LEO) has an altitude of about:





33. GPS satellites are in which orbit?





34. What is the approximate altitude of geostationary orbit?





35. A spacecraft approaching Mars must perform:





36. What is a transfer window in interplanetary missions?





37. Which spacecraft used a direct hyperbolic trajectory to Pluto?





38. Which maneuver is used for orbital altitude adjustments?





39. A bi-elliptic transfer is more efficient than Hohmann when:





40. Which mission used Earth flybys to gain energy toward Saturn?





41. Interplanetary trajectories are computed using:





42. The delta-v budget for a mission refers to:





43. A spacecraft in a parking orbit is:





44. Which orbit is best for communications with polar regions?





45. Which factor strongly affects re-entry trajectory?





46. The trajectory correction maneuver (TCM) is applied:





47. Which orbit is most suitable for Earth observation satellites?





48. A free-return trajectory was used in:





49. Which is a key challenge in trajectory design?





50. Spacecraft trajectory planning combines:





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