Mechanical Aptitude Test

1. In a hydraulic system, if the area of the input piston is 2 square meters and the area of the output piston is 8 square meters, what is the mechanical advantage of the system?

2. Which of the following materials has the highest tensile strength?

3. A lever is used to lift a heavy object. The object is placed 2 feet from the fulcrum, and the effort is applied 4 feet from the fulcrum. If the object weighs 100 pounds, how much effort is required to lift it?

4. A block and tackle system has 4 ropes supporting the load. If the load weighs 400 pounds, what is the tension in each rope?

5. Two gears are meshed together. The larger gear has 40 teeth, and the smaller gear has 20 teeth. If the larger gear rotates at 60 revolutions per minute (RPM), what is the rotational speed of the smaller gear?

6. What is the purpose of using ball bearings in a mechanical system?

7. Which of the following is an example of a first-class lever?

8. What is the mechanical advantage of an inclined plane that is 12 feet long and 4 feet high?

9. Which of the following machines is an example of a compound machine?

10. Which type of energy is primarily converted to mechanical energy in an internal combustion engine?