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