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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) 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 limits motion
C) It can change the direction and magnitude of a force
D) It reduces mechanical advantage
  • 3. Which type of pulley changes only the direction of the force applied?
A) Block and tackle pulley
B) Compound pulley
C) Fixed pulley
D) Moveable pulley
  • 4. How does a rack and pinion system convert rotary motion into linear motion?
A) By increasing friction between gears
B) By using a belt drive system
C) By rolling the gears on a surface
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) Helical gear
C) Worm gear
D) Bevel 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 reducing the number of gears
B) By increasing the size of the 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) Compound gear trains move slower
B) Compound gear trains have multiple intermediate gears
C) Simple gear trains are more complex
D) Simple gear trains have bigger gears
  • 9. What do worms gears provide in a system?
A) Flexible movement
B) Low gear reduction
C) High gear reduction
D) Slippery surface
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