The remote pilot study guide recommends the IMSAFE checklist for a pilot's physical self-assessment before every flight. What does the "I" in IMSAFE stand for?

Why: IMSAFE stands for Illness, Medication, Stress, Alcohol, Fatigue, and Emotion. The study guide frames it as the question "Am I sick?" — illness is called "an obvious pilot risk" and the first item a pilot should check before flying.

• Impulsivity is one of the five hazardous attitudes discussed in aeronautical decision-making, a different checklist from IMSAFE.
• Inspection refers to the aircraft's preflight and maintenance checks, not the pilot's physiological self-assessment that IMSAFE covers.