Source: EASA ECQB-SPL (new questions not in existing set) | 6 questions
Correct: A)
Explanation: According to the Yerkes-Dodson law (the inverted-U curve of arousal and performance), peak performance occurs at a moderate, optimal level of arousal — represented by Point B in the diagram. Too little arousal (Point A) leads to inattentiveness and poor performance, while too much arousal (Points C and D) causes overload and performance degradation. Point B therefore represents the ideal balance between alertness and composure.
Correct: C)
Explanation: Stress commonly arises when a pilot perceives a threat or problem for which no satisfactory solution is apparent — this is the core definition of the stress response. Individual reactions to stress vary significantly depending on personality, experience, and coping strategies, making option A incorrect. Training and experience are proven to raise the stress threshold and reduce the frequency and severity of stress reactions, making option D wrong. Stress is directly relevant to flight safety, so option B is also incorrect.
Correct: D)
Explanation: The primary duty of any pilot is to aviate — maintain aircraft control and a stable flight path. Only once the aircraft is under control should the pilot attend to any secondary problem. Attempting to solve a problem while neglecting aircraft control (options A, B, C) risks losing situational awareness or aircraft control. Option D correctly prioritises flying first, then problem-solving, while continuously monitoring the aircraft.
Correct: D)
Explanation: On the Yerkes-Dodson arousal-performance curve, Point D lies on the far right where very high arousal levels cause performance to collapse — the pilot is overstrained (over-stressed). At this point, cognitive function deteriorates, decision-making becomes impaired, and errors multiply. Points A and C represent under-arousal or near-optimal states; Point B represents peak performance.
Correct: D)
Explanation: James Reason's Swiss Cheese Model illustrates how accidents result from an error chain — multiple failures that individually may be harmless but, when aligned, allow a hazard to pass through all defensive layers simultaneously. The holes in each slice of cheese represent latent or active failures; when all holes line up, an accident occurs. It is not a tool for assessing pilot readiness, planning emergency landings, or finding optimal solutions.
Correct: A)
Explanation: Red-out occurs when the pilot is subjected to sustained negative g-forces (e.g., during a bunt or pushover manoeuvre), causing blood to be forced upward into the head and eyes. The engorged capillaries in the conjunctiva create a characteristic red tinge in the visual field. This is distinct from grey-out and black-out (caused by positive g-forces); it has nothing to do with colour perception at sunrise/sunset, anaemia, or decompression sickness.
