In a simple truss, the total number of members is m = 2n - 3 where n is the tota
ID: 1710979 • Letter: I
Question
In a simple truss, the total number of members is m = 2n - 3 where n is the total number of (a) supports (b) joints (c) members (d) external forces On the shear and bending moment diagram, the shear is constant and the bending moment varies linearly when the beam is subjected to a (a) distributed load (b) linearly increasing load (c) linearly decreasing load (d) concentrated load As an external force (P) on a block resting on a horizontal surface is increased, the magnitude of the friction force increases until it reaches a maximum value F_m defined as (a) F_m = mu_sN (b) F_m = mu_kN (c) F_m = tan mu_sN (d) F_m = tan mu_s N The term used to describe the resistance to bending about an axis is (a) radius of gyration (b) parallel axis theorem (c) moment of inertia (d) centroid Statics is a science which describes and predicts the conditions of (a) fluids at rest under the action of forces (b) rigid bodies at rest under the action of forces (c) rigid bodies in motion under the action for forces (d) deformable bodies in motion under the action of forces The moment of a force about a point at (x_A, y_A, z_A) is defined as the vector product of the position vector and the force applied r at (x_B, y_B, z_B) where the position vector described as (a) r times F (b) rFsin theta (c) (x_B/A, y_B?A, z_B/A) (d) (x_A/B, y_A/B, z_A/B)Explanation / Answer
6) Option B is correct. This formula is used to find the redundency in the truss.
7) Option D is correct. When concentrated load is there, Then shear is constant and bending moment varies linearly.
8) Option A is correct. When it reaches maximum value it will be multiplied by Mue S with N.
9) Option C is correct. When moment of inertia is more more restence to bending means more stiffness.
10) Option B is correct. Static means body is in rest and study of static body is known as statics.
11) Optiona A is correct. Moment of force is defined as multiplication of position vector and force.