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