A. be in equilibrium
B. always reduce to a resultant force
C. always reduce to a couple
D. both (A) and (C)
Related Mcqs:
- The force polygon representing a set of forces in equilibrium is a_____________________?
A. triangle
B. open polygon
C. closed polygon
D. parallelogram - Force polygon method is applicable for_____________________?
A. any copianar force system
B. a system of parallel forces only
C. concurrent copianar force system
D. non-concurrent copianar force system - 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° - An ordinate in a funicular polygon represents__________________?
A. shear force
B. resultant force
C. bending moment
D. equilibrium - A funicular polygon cannot be made to pass through___________________?
A. one specified point
B. two specified points
C. three specified points
D. more than three specified points - A force P of 50 N and another force Q of unknown magnitude act at 90° to each other. They are balanced by a force of 130 N. The magnitude of Q is__________________?
A. 60 N
B. 80 N
C. 100 N
D. 120 N - A rope is wrapped twice around a rough pole with a coefficient of friction ‘A . It is subjected to a force Fj at one end and a gradually increasing force F2 is applied at the other end till the rope just starts slip-ping. At this instant the ratio of F2 to Fi is_____________________?
A. 1
B. e2*
C. e4*
D. e*72 - 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 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 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°
