43. For a compression member with double angle section, which of the following section will give larger value of minimum radius of gyration?

A. equal angles back to back
B. unqual legged angles with long legs back to back
C. unequal legged angles with short legs back to back
D. both (B) or (C)
✅ The correct answer is option B.

50. The elastic strain for steel is about_________________?

A. 1/12 of strain at the initiation of strain hardening and about 1/120 of maxi-mum strain
B. 1/2 of strain at the initiation of strain hardening and about 1/12 of maxi-mum strain
C. 1/12 of strain at the initiation of strain hardening and 1/200 of maximum strain
D. 1/24 of strain at the initiation of strain hardening and about 1/200 of maximum strain
✅ The correct answer is option C.