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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) Worm gear
B) Spur gear
C) Helical gear
D) Bevel gear
  • 2. What is the benefit of using a pulley system?
A) It can change the direction and magnitude of a force
B) It limits motion
C) It reduces mechanical advantage
D) It increases friction
  • 3. Which type of pulley changes only the direction of the force applied?
A) Compound pulley
B) Moveable pulley
C) Block and tackle pulley
D) Fixed pulley
  • 4. What is the main difference between a simple and compound gear train?
A) Compound gear trains have multiple intermediate gears
B) Simple gear trains are more complex
C) Simple gear trains have bigger gears
D) Compound gear trains move slower
  • 5. Which type of gear is shaped like a screw and is used to increase or decrease rotational motion?
A) Helical gear
B) Worm 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) Rack and pinion gear
B) Spur gear
C) Bevel gear
D) Helical gear
  • 7. 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
  • 8. What do worms gears provide in a system?
A) Low gear reduction
B) Slippery surface
C) High gear reduction
D) Flexible movement
  • 9. 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 reducing the number of gears
D) By increasing the size of the gears
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