Mechanical comprehension · Difficulty 1
Try this ASVAB-style question.
Choose your answer before opening the explanation. This original practice item is for preparation and does not reproduce an official test question.
A pulley arrangement lets a smaller input lift a heavier load. Which concept is being demonstrated?
- center of gravity
- mechanical advantage
- friction
- pressure
Reveal answer and explanation
mechanical advantage
mechanical advantage is the ratio of output force to input force. A pulley arrangement lets a smaller input lift a heavier load.