Degree of static indeterminacy of a rigid-jointed plane frame having 15 members, 3 reaction components and 14 joints is__________________?

A. vertical direction
B. horizontal direction
C. inclined direction
D. the direction in which the deflection is required

A. slope
B. curvature
C. deflection
D. bending moment

A. increase and decrease
B. increase and increase
C. decrease and increase
D. decrease and decrease

A. always occurs at centre of span
B. always occurs under a wheel load
C. never occurs under a wheel load
D. none of the above

A. zero length
B. infinite length
C. zero moment of inertia
D. none of the above

A. displacements
B. force
C. displacements and forces
D. none of the above