True or False? Only Pipe sections are available in three weight classes, i.e., std, x-strong, xx-strong

A steel plate (called a cover plate) having cross-sectional dimensions W2 8.0 in. x 0.7 in. is welded along the full length of the bottom flange of a W, 12.0 in. x 14.0 in. wide-flange beam (see the figure, which shows the beam cross section). I W2 cover plate What is the percent increase in the smaller section modulus (as compared to the wide-flange beam alone)? Round your answer to two decimal places. % in smaller section modulus =|

11-1. Determine whether the W14 x 34 beam shown in Figure 11-43 is adequate for flexural rupture and flexural yielding at the cope. The steel is ASTM A992, grade 50. 1/2" W14x34 R₁ = 40kips FIGURE 11-43 Detail for Exercise 11-1

UPVOTE WILLE BE GIVEN. OLEASE FOLLW THE INSTRUCTIONS. NO LONG EXPLANATION. PLEASE GUVE ATLEAST 3 DIFFERENT KIND OF TRUSSES WITH ITS SIMPLE, COMPOUND AND COMPLEX.