CPL Human Factors · Mock exam

Spatial disorientation in cloud occurs because, without external visual reference:

• A.The vestibular and proprioceptive senses give unreliable information about attitude, which can conflict with reality
• B.The engine runs rough when ingesting supercooled water droplets in instrument meteorological conditions
• C.ATC stops transmitting because cloud penetration triggers a mandatory radio-silence protocol
• D.The instruments fail simultaneously due to electrical interference from nearby cloud formations