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