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The World of Gears and Pulleys - Exam
Contributed by: Parkin
  • 1. Which type of gear has straight teeth and is most commonly used in industry?
A) Helical gear
B) Bevel gear
C) Spur gear
D) Worm gear
  • 2. What is the benefit of using a pulley system?
A) It increases friction
B) It can change the direction and magnitude of a force
C) It reduces mechanical advantage
D) It limits motion
  • 3. Which type of pulley changes only the direction of the force applied?
A) Compound pulley
B) Fixed pulley
C) Moveable pulley
D) Block and tackle 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 increasing friction between gears
C) By using a belt drive system
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) Bevel gear
B) Helical gear
C) Worm 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) Spur gear
D) Rack and pinion gear
  • 7. How does a gear train multiply torque?
A) By adding more power sources
B) By changing the speed at which force is applied
C) By increasing the size of the gears
D) By reducing the number of gears
  • 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) Simple gear trains are more complex
D) Compound gear trains move slower
  • 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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