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The World of Gears and Pulleys
  • 1. Which type of gear has straight teeth and is most commonly used in industry?
A) Bevel gear
B) Worm gear
C) Spur gear
D) Helical gear
  • 2. What is the benefit of using a pulley system?
A) It limits motion
B) It can change the direction and magnitude of a force
C) It reduces mechanical advantage
D) It increases friction
  • 3. Which type of pulley changes only the direction of the force applied?
A) Fixed pulley
B) Moveable pulley
C) Compound pulley
D) Block and tackle pulley
  • 4. What is the main difference between a simple and compound gear train?
A) Compound gear trains have multiple intermediate gears
B) Simple gear trains have bigger gears
C) Compound gear trains move slower
D) Simple gear trains are more complex
  • 5. Which type of gear is shaped like a screw and is used to increase or decrease rotational motion?
A) Spur gear
B) Worm gear
C) Bevel gear
D) Helical gear
  • 6. Which gear type is used to change the direction of rotation in a system perpendicular to another gear?
A) Spur gear
B) Helical gear
C) Bevel gear
D) Rack and pinion gear
  • 7. How does a rack and pinion system convert rotary motion into linear motion?
A) By using a belt drive system
B) By increasing friction between gears
C) The pinion gear engages with the teeth of the rack to move in a straight line
D) By rolling the gears on a surface
  • 8. What do worms gears provide in a system?
A) Low gear reduction
B) Flexible movement
C) Slippery surface
D) High gear reduction
  • 9. How does a gear train multiply torque?
A) By changing the speed at which force is applied
B) By reducing the number of gears
C) By increasing the size of the gears
D) By adding more power sources
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