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