Final answer:
During level flight, the examiner will want you to maintain altitude to within a certain range which ensures that planes have enough separation to avoid collisions.
Step-by-step explanation:
During level flight, the examiner will want you to maintain altitude to within a certain range. In commercial aviation, each airplane must maintain a distance of five miles from another plane flying at the same altitude and 2,000 feet above and below another aircraft (1,000 feet if the altitude is less than 29,000 feet). This ensures that planes have enough separation to avoid collisions. Similarly, electrons in quantum mechanics have restrictions on their locations, dictating their energy levels and orbitals within an atom.