← All explained questions · Preflight Planning and Required Information
Which condition increases the takeoff distance required?
Choices
✓ High density altitudecorrect
High density altitude reduces performance and lengthens the takeoff roll.
A strong headwind
A headwind shortens the takeoff distance.
A downslope runway
A downslope generally shortens the takeoff run.
Lower aircraft weight
Lower weight shortens, not lengthens, the takeoff distance.
Why
High density altitude, a tailwind, an upslope, or a soft/wet surface all lengthen the takeoff distance; a headwind and lower weight shorten it.
FAA source: PHAK Ch. 11 / 14 CFR 91.103browse the reference library →
This is taught in Runway, Performance and Fuel Requirements — study the lessons free, then practice with grading and mastery tracking.
Original study question written for this course — representative of FAA knowledge-test topics, not an actual current FAA exam question.