101) The number of independent equations to be satisfied for static equilibrium of a plane structure is

102) If there are m unknown member forces, r unknown reaction components and j number of joints, then the degree of static indeterminacy of a pin-jointed plane frame is given by

103) Number of unknown internal forces in each member of a rigid jointed plane frame is

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

105) Degree of kinematic indeterminacy of a pin-jointed plane frame is given by