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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 limits motion
D) It reduces mechanical advantage
  • 3. Which type of pulley changes only the direction of the force applied?
A) Moveable pulley
B) Fixed pulley
C) Compound pulley
D) Block and tackle pulley
  • 4. 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) Helical gear
D) Bevel gear
  • 5. Which type of gear is shaped like a screw and is used to increase or decrease rotational motion?
A) Bevel gear
B) Spur gear
C) Helical gear
D) Worm gear
  • 6. 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
  • 7. 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
  • 8. How does a gear train multiply torque?
A) By changing the speed at which force is applied
B) By adding more power sources
C) By reducing the number of gears
D) By increasing the size of the gears
  • 9. What do worms gears provide in a system?
A) High gear reduction
B) Flexible movement
C) Low gear reduction
D) Slippery surface
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