Once the engine has started ignition systems of piston engines are ? Course > landing
![exemple question 163](https://www.furious-atpl.com/documents/IMG_163.jpg)
The blade angle of a propeller is the angle between the ?
![exemple question 164](https://www.furious-atpl.com/documents/IMG_164.jpg)
In very cold weather a slightly higher than normal engine oil pressure during startup ?
![exemple question 165](https://www.furious-atpl.com/documents/IMG_165.jpg)
![exemple question 166](https://www.furious-atpl.com/documents/IMG_166.jpg)
![exemple question 167](https://www.furious-atpl.com/documents/IMG_167.jpg)
![exemple question 168](https://www.furious-atpl.com/documents/IMG_168.jpg)
![exemple question 169](https://www.furious-atpl.com/documents/IMG_169.jpg)
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