axial load >>> A force that is perpendicular and that passes through the centroid (center) is known as an __________ ___________

backdraft >>> The burning of heated gaseous products of combustion, when oxygen is introduced into an oxygen deficient atmosphere, is known as ____________

Bottom chord >>> ______ ________ is the bottom member of a truss and is under tension.

Bowstring truss >>> __________ ______ is the top chord of the truss and curved (a...