#1. A rocket with a motor cluster consisting of a central composite motor and four black powder motors, using five identical igniters:
#2. You are at the launch site and decide to fly your rocket on a heavier motor than you simulated it on. Which statement regarding CG is true?
#3. Rocket A weighs twice as much as rocket B. Both are descending at 20 feet per second. Which statement is true?
#4. How do you convert Newtons of thrust to pounds of thrust?
#5. What can happen if all the motors of a cluster do not ignite at launch?
#6. Which describes the thrust curve of a progressive motor?
#7. In general terms, the specific impulse of a rocket motor is:
#8. What is a Newton?
#9. Which of the following is most likely in dual-deployment rockets that use a drogue and a main parachute?
#10. What is the oxidizer most commonly used in a commercial hybrid rocket motor?
#11. How does Newton’s Third Law “To every action there is always an equal and opposite reaction” relate to rocketry?
#12. What is NH4ClO4?
#13. For a rocket with a much less than 10:1 “length to diameter” (L/D) ratio, such as spools and pyramids, what type of drag contributes significantly to stability and makes it possible to fly without much, if any, nose weight?
#14. The flight of a high-power rocket can be separated into three portions; they are:
#15. Which of the motors listed below has the highest total impulse?
#16. How can a statically unstable rocket be made stable?
#17. What are the three major factors that determine the maximum altitude of a high-power rocket in vertical flight?
#18. Which describes the thrust curve of a regressive motor burn?
#19. What is a shred?
#20. When using a pressure-sensor altimeter in a rocket that will not reach Mach 1:
#21. What is the difference between a J640 and a J320 high power rocket motor (assume full 1280 Newton-second J motors)?
#22. Which of the motors listed below has the highest average thrust?
#23. What typically happens to a marginally stable rocket with a hybrid motor during the thrusting phase?
#24. What is the primary requirement for a rocket motor ignitor?
#25. Which of Newton’s Laws best describes the behavior of a rocket motor?