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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) Spur gear
C) Bevel 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 can change the direction and magnitude of a force
D) It limits motion
  • 3. Which type of pulley changes only the direction of the force applied?
A) Compound pulley
B) Moveable pulley
C) Fixed pulley
D) Block and tackle 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 rolling the gears on a surface
C) By increasing friction between gears
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) Spur 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) Bevel gear
B) Rack and pinion gear
C) Spur gear
D) Helical gear
  • 7. How does a gear train multiply torque?
A) By changing the speed at which force is applied
B) By reducing the number of gears
C) By increasing the size of the gears
D) By adding more power sources
  • 8. What is the main difference between a simple and compound gear train?
A) Compound gear trains move slower
B) Simple gear trains are more complex
C) Simple gear trains have bigger gears
D) Compound gear trains have multiple intermediate gears
  • 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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