A. force polygon closes
B. funicular polygon closes
C. both force polygon” and funicular polygon close
D. all the forces are concurrent
Related Mcqs:
- A system of copianar forces acting on a rigid body can be reduced to________________?
A. one force only
B. one couple only
C. one force and one couple only
D. none of the above - If the resultant of two forces has the same magnitude as either of the force, then the angle between the two forces is____________________?
A. 30°
B. 45°
C. 60°
D. 120° - The force polygon representing a set of forces in equilibrium is a_____________________?
A. triangle
B. open polygon
C. closed polygon
D. parallelogram - The condition of equilibrium for any system of forces in a plane is____________________?
A. that polygon of forces must close
B. that resultant couple must be zero
C. both (A) and (B)
D. none of the above - If the given forces P,, P2, P3 and P4 are such that the force polygon does not close, then the system will___________________?
A. be in equilibrium
B. always reduce to a resultant force
C. always reduce to a couple
D. both (A) and (C) - In which of the following trusses, the method of substitution is required for determining the forces in all the members of the truss by graphic statics ?
A. howe truss
B. king post truss
C. fink truss
D. warren truss - The diagram showing the point of application and line of action of forces in their plane is called____________________?
A. vector diagram
B. space diagram
C. force diagram
D. funicular diagram - The graphical method of determining the forces in the members of a truss is based on________________?
A. method of joint
B. method of section
C. either method
D. none of the two methods - The member forces in a statically in determinate truss____________________?
A. can be obtained by graphic statics
B. cannot be obtained by graphic statics
C. may be obtained by graphic statics
D. can be obtained by graphic statics by trial and error - The resultant of two forces P and Q is R. If Q is doubled, the new resultant is perpendicular to P. Then_________________?
A. P = R
B. Q = R
C. P = Q
D. None of the above is correct
