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