SimplyATPL › 040 Human Performance and Limitations
Human Performance (040) covers the physiology and psychology of flying: the atmosphere and the body, hypoxia and hyperventilation, vision and hearing, spatial disorientation and illusions, health and fitness, information processing, decision making, threat and error management, communication and crew resource management.
Free, no sign-up. The practice paper uses the question count and time limit from CAA guidance for this subject. Check the CAA for the current figures before your exam.
Questions are wordy and the options are often close. Reading carefully and knowing the precise definitions and figures, such as times of useful consciousness, separates the right answer from the nearly right one.
In the practice desk you can sit a full 48-question paper under exam conditions, or drill one syllabus topic at a time. Questions you miss come back after 1, 3, 7, 16 and 35 days, so weak areas get repeated until they stick.
Every topic below has practice questions, and you can drill any of them on its own.
Five questions from the bank. Each one in the practice desk has a worked explanation like these.
Answer: A. About 70%
Human factors contribute to roughly 70% of accidents, usually alongside other causes.
Common trap: Reading "contributory" as "sole". Human factors are usually one of several causes.
Answer: A. Henry's law
Nitrogen dissolved in the body tissues comes out of solution as the surrounding pressure falls, forming bubbles.
Common trap: Choosing Boyle's law. Boyle is about trapped gas expanding, not gas coming out of solution.
Answer: A. 10 to 20 seconds
Without rehearsal, information decays from short-term memory within about 10 to 20 seconds.
Common trap: Confusing short-term memory with sensory memory.
Answer: A. Liveware to software
Checklists, procedures, manuals and symbology are software.
Common trap: Calling a paper checklist hardware because you can hold it.
Answer: C. Honest mistakes are treated fairly, but reckless conduct is not tolerated
A just culture encourages reporting while still holding people to account for gross negligence and deliberate violations.
Common trap: Treating just culture and no-blame culture as the same thing.