Statics - Two force members

[@shailkumarjain]

Sir.. in the question why we have not considered forces at D for the Fx , Fy and moment equations? I understood the two member part you explained in first part of video but still fail to comprehend why forces at D are excluded ? please advice.. thank you..

[@chococo3066]

Can two force members only be a link between Pin a Pin?

[@radiatedracer3830]

When you translate FB onto the CBA link doesn't it have to be facing the opposite direction as drawn on the BD link? I always get FB = 3981 N due to this.