5 questions would be shown from a total of 30 free practice questions to prepare you for the cadet pilot interview. Enjoy!
1 / 5
1. Engine detonation is ________.
Detonation happens when small pockets of fuel/air mixture ignite at the wrong time, typically before the spark plug fires. This causes shockwaves and a ‘pinging’ sound in the engine.
2 / 5
2. You’re flying a DA-40 when you start experiencing moderate turbulence. What’s the maximum speed you should you maintain?
In very turbulent air, you should slow down to maneuvering speed. Va guarantees that your aircraft will stall before structural damage occurs.
3 / 5
3. What primary factor determines mach angle?
Mach angle is the angle a shock wave makes with the direction of motion. The faster you fly above the speed of sound, the lower the angle. Read more about it here: https://www.grc.nasa.gov/www/k-12/airplane/machang.html
4 / 5
4. Prist (fuel system icing inhibitor) is made of __________.
To be specific, it’s actually Diethylene Glycol Monomethyl Ether, or DEGMME. And when it’s added to fuel, any water that is in the fuel is prevented from crystalizing down to temps as cold as -85 degrees Celsius. That’s cold.
5 / 5
5. Why does avgas have lead in it?
It’s still used because it prevents engine knocking, also known as detonation.
Your score is
The average score is 45%
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