For a non-concurrent force system to be in equilibrium__________________?

A. Only the closure of force polygon is sufficient
B. Only the closure of funicular polygon is sufficient
C. Both force polygon and funicular polygon must close
D. None of the above

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

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

The pole distance is measured in___________________?

A. Distance scale
B. Force scale
C. Mass scale
D. Time scale

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 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 force polygon representing a set of forces in equilibrium is a_____________________?

A. Triangle
B. Open polygon
C. Closed polygon
D. Parallelogram

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

Free body diagram is an____________________?

A. Isolated joint with only body forces acting on it
B. Isolated joint with internal forces acting on it
C. Isolated joint with all the forces, internal as well as external, acting on it
D. None of the above

In a lifting machine a weight of 5 kN is lifted through 200 mm by an effort of 0.1 kN moving through 15 m. The mechanical advantage and velocity ratio of the machine are respectively_____________________?

A. 50 and 75
B. 75 and 50
C. 75 and 75
D. 50 and 50