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