MECHANICS OF MATERIALS Test Questions and Answers

MECHANICS OF MATERIALS Test Questions and Answers Free body diagram - Answer-The diagram of an isolated body with the representation of all external forces acting on it is called ________. Truss - Answer-What do you call a framework composed of members joined at their ends to form a rigid structure? Varignon's Theorem - Answer-The moment of the resultant of two concurrent forces with respect to a center of their planes is equal to the algebraic sum of the moments of the components with respect to the same center". This statement is otherwise known as _________. Statically Indeterminate - Answer-The condition exists in structures where the reactive forces exceed the number of independent equations for equilibrium. What do you call such condition? have a vector sum of magnitude W. - Answer-Two lengths of a steel wire are used to support a chandelier of weight W. The tension in the wire must: Axial load; transverse load; bending moment - Answer-The built-in or fixed support is capable of supporting which of the following loads? F=ma - Answer-Which of the following BEST describes d'Alembert's principle? Newton Second Law of Motion - Answer-Which of the following closely related to d'Alembert's theorem? External force - Answer-What do you call the force on a rigid body caused by other bodies? Internal force - Answer-What do you call the force which holds parts of the rigid body together? Right-hand rule - Answer-The line of action of the moment vector is normal to the plane containing the force vector and the position vector. What is used to determine the sense or direction of the moment. Force Couple System - Answer-If a force, F is moved a distance d from the original point of application, a couple, M, equal to Fd must be added to counteract the induced couple. What is the term usedto describe this combination of moved force and couple?