1. A roller does not have a a. horizontal reaction(s) b. horizontal and vertical c. vertical d. none of the above 2. Method of analysis for trusses that utilizes the intersections of members a. method of sections b. method of joints c. method of intersections d. none of the above 3. This is the result of two forces who are equal in magnitude but have opposing directions a. Couple Force c. Couple Moment b. Couple Magnitude d. all of the above 4. Type of force system where the forces will never meet a. Collinear System c. Coplanar b. Non-Coplanar System d. Parallel 5. If 2 collinear forces which share the same origin and have the same magnitude F but having opposing directions, what is the resultant force? a. 2F c. -F b. +F d. 0 6. In a 3D plane, if the magnitude is multiplied by cos, we obtain a. Fy c. Fx b. Fz d. none of the above 7. The resultant of the forces F-3i+9j and P--i-9j is a. 0 c. -2 b. 2 d. 22 8. What is the cartesian coordinate form of the resultant in problem 7 a. Oi+0j c. -2i b. -2i+0j d. 2i+2j 9. If F-5kN and the resultant force is 8.2kN, what is the angle between the Z-axis and the resultant? a. 307.57 c. undefined b. 52.43 d. 127.57 10. If a force is perpendicular with a member, its moment at any point aside from the colinear points is a. Zero c. Maximum b. Equal to its force d. Cannot be determined 11. The following are unit of forces except a. kilograms c. kips b. kip d. lbs 12. The effect of a system of forces on a body is usually expressed in terms of a. Parallelogram Law c. Free-body diagram b. Resultant d. Triangle Law 13. If the sum of the horizontal forces is + and the sum of the vertical forces is negative, the resultant can be found in the a. 1st Quadrant c. 3rd Quadrant b. 4th Quadrant d. 2nd Quadrant 14. The following are the correct units of moment except a. lb-ft c. kips-ft b. lb-m d. N-m 15. This is a type of member that does not support any load a. Unloaded Member c. Zero-Force Member b. Support Member d. Unnecessary Member