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