Q1: A car pedal linkages mechanism of the engine carburetor is shown in figure (1). This mechanism includes levers (2, 3, 4, 5, 6 & 7) which are connected through pins (A, B, C, D, E, F, I, J & K). The applied force (P) by the driver on the car pedal is 150 N. Take safety factor of (2). 5/ 100 Car Pedal 70 For all pins: S, 60MPa For all levers: S,-185MPa Requirement: Select the correct answer of following: 1. The diameter of pin A in (mm) is: B: 2.405 C: 2.635 100 P B 120 A 50° D: 3.568 A: 4.436 2. The maximum stress in the lever 2 (car pedal) in (MPa) is: A: 63.019 B: 23.563 C: 19.636 D: 43.200 3. The diameter of pin C in (mm) is: B: 2.189 C: 2.651 A: 2.112 4. The lever 4 (DE) is subjected to: Air Filter F E Carburetor 4 3 10° D Figure (1) Engine 95 Car Frame All dimensions are in (mm) 5. The maximum bending moment in (N.mm) of lever 3 is: A: 2507.01 B: 5954.22 C: 4330.29 D: 9401.37 6. The diameter of pin D in (mm) is A: 2.635 B: 2.112 C: 3.054 D: 1.686 D: 3.845 7. The diameter of pin B in (mm) is A: 2.112 B: 1.686 C: 2.635 D: 3.054 A:Compression B:Tension C:Bending D:Shear