Answers to Pop-Rivet Quiz Test 1
1. People die of starvation, not because there is no food left in the world but because someone or something is preventing them from getting to it. If all the food in the world were exhausted, however, we'd all be, well...not long for this world. Engines are the same way. They get fuel starved because we mismanage the existing fuel. When the fuel is exhausted, we become glider pilots--or rocks, depending on our reaction.
2. 4.4 positive Gs, 1.76 negative, in case you were wondering if you could outside loop your C-152. Normal category is 3.8 and 1.52 respectively.
3. Increases stalling speed. Also increases longitudinal stability.
4. Outside loop, believe it or not.
5. d. One with low wing loading.
6. Actually, the answer is "c," driving your mother-in-law home, since flivver refers to a land-based means of conveyance.
7. No, this is not a trick question. Air, which is comprised of mostly nitrogen (atomic number 7), oxygen (8), carbon (6) dioxide and a sprinkling of other gases, came from plain old stars like our sun. It took supernovas to make elements heavier than iron, atomic number 26. As to why we fly through it--well, it's easier than going around, isn't it? Noooo! The answer is just too obvious: We do it because it's FUN!
8. d. Yeah. Believe it or not, your control surfaces will vibrate themselves to death when their resonant frequency is reached, and more than likely this will take the rest of the wing or horizontal stabilizer with it.
9. Over 15,000.
10. The wing tips, in order to try and maintain aileron effectiveness. If you're an aerobatic pilot, you know not to use the ailerons beyond the critical angle of attack, anyway; you use the rudder.
Nevertheless, the outer panels on production aircraft are "washed out." This means that wingtips are twisted somewhat downward, decreasing the angle of incidence and causing the tips to exceed the critical angle of incidence after the rest of the wing has stalled, leaving some aileron authority while the nose drops, restoring some lift to the rest of the wing. At least that's the theory.
11. Believe it or not, it was the redoubtable Harry Houdini!
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