Page 46 AMS 115: AVIATION MAINTENANCE SCIENCE Project No. 5a FAR 147 - B30 Level_2 Student Name: Project Objective: Student will be able to calculate effort, resistance, arms, and mechanical advantage of simple machines. Determine density and specific gravity of various substances based on volume and weight. Answers must be provided with proper units where appropriate. Equipment Required: A calculator and scratch paper. Procedure: The student will correctly answer 70% of the following word problems. Refer to the attached drawing. The amount of force applied to rope A to lift the weight is - A 60 POUNDS FIGURE 61 -Mysis Refer to Question 1. If the resistance was increased to 400 pounds, how much force would be needed to lift the weight? 3. Refer to Question 1. How much rope must be pulled to lift the resistance 5 feet? 4. What is the mechanical advantage of a block and tackle that has 8 pulleys (4 fixed and 4 moveable)? 5. A single movable pulley acts like what class of lever? 6. A single fixed pulley acts like what class of lever? 7 . If the drive gear has 50 teeth and the driven gear has 150 teeth, the driven gear will turn revolutions when the drive gear turns 100 revolutions. 8. If the drive gear has 30 teeth and the driven gear has 200 teeth, the driven gear will turn cs Seann revolutions when the drive gear turns 80 revolutions. WithCamscanner