A. P = R
B. Q = R
C. P = Q
D. None of the above is correct
Related Mcqs:
- 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° - When two forces, each equal to P, act at 90° to each other, then the resultant will be_____________?
A. P
B. PV2
C. P/V2
D. 2P - The angles between two forces to make their resultant a minimum and a maximum respectively are__________________?
A. 0° and 90°
B. 180° and 90°
C. 90° and 180°
D. 180° and 0° - A simple pendulum of length / has an energy E, when its amplitude is A. If the length of pendulum is doubled, the energy will be___________________?
A. E
B. E/2
C. 2E
D. 4E - 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 - 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 - A system of copianar forces is in equilibrium when___________________?
A. force polygon closes
B. funicular polygon closes
C. both force polygon” and funicular polygon close
D. all the forces are concurrent - 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
