Question

5. To what degree is the following beam with two fixed ends statically indeterminant? a. 1st Degree b. 2nd Degree F C. 3rd Degree d. Beam is structurally determinant 'T 6. The centroid can be defined as a. The center of gravity for a body of various materials b. The geometric center of an object C. The point where a moment of inertia is always taken about d. All the above 7. Which of the following systems are unstable? 10 8. Which of the following is most true about Area Moments of Inertia: a. The 3rd moment about an axis b. Typically taken about a centroidal or perimeter axis C. Units are length to the 3rd power d. Represents a resistance to gravitational forces

Answer 1

degree of static inde terminacy Ds = framber of]-[equilibrium @ Reaction equation) Ds - 3 3 equillibnum equatis? EM20, EVzo, Eko opton ② is correct can as The The centrold be defined centre of gravity for a body of various material. option is correct Option 'B' is incorrect because In composite beam Germet geometric center ce option c' is incorrect because moment of CG (centrica Inertia be taken about any axir. and centold is diferent 006 can as there qre Bo ption correet unstable because upper blocks will move downward due to its own weight and The surface is Inclined and trus not complete and Ć is a cantilever beam which is stable. 26. The mont the about Area moment of Inertia is That it Units are length to the grd power so option is correct. It be taben about any axir and it is called 14+ moment about an axirin can