CAAS SAR-66 Module 8 (Basic Aerodynamics) Practice Questions - CAAS SAR-66 Category B1 B2 Basic Knowledge Examination - Module 8 Basic Aerodynamics Exam

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At what altitude in the International Standard Atmosphere (ISA) does the tropopause begin, and what happens to temperature above this boundary up to 20 km (65,617 ft)?

36,089 ft (11 km); temperature remains constant at -56.5°C 30,000 ft (9.1 km); temperature increases at 2.0°C per 1,000 ft 45,000 ft (13.7 km); temperature continues decreasing down to -80.0°C 25,000 ft (7.6 km); temperature drops to 0°C and stays isothermal

Correct Answer:

36,089 ft (11 km); temperature remains constant at -56.5°C

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