I just need the answer choices, you don't need to explain the questions

14. Fine grained motals are strungrr because there are more (a) slip planes (b) grain boundarins (c) dislocailon tangles (d) vacancies (s) yoiat detects 15. Which of the following is not true of HSL A steels campared with regular steeis? (a) lighter (b) strongar (c) stiffer (d) both a and b (c) both an and e 16 For HSt A stecls, the the grain sire, the the yield strength. (a) larger, larger (b) smaller, smaller (c) smaller, larger (d) there is no connectien letween. the two (e) none of these is correct 17-28. HSLA steels and Aluminum-L.ithium (ALLi) are both 17 , which indicates thas they both involve 18 The alloying element of importance in HSI.A steels is 19 , whereas in AJ-Li it is the lithium which is added to the aluminum. In both cases there is only a small amonnt of the alloying element addod, in fact only abour 20 lithium is added to aluminum to produce a 10%. 21 , both these materials the alloying element produces 22 but their positions in the crystals and (c) no froc electrons 19. (a) curopium (b) silicon (c) titanium (d) chromium (c) niobium 20. (a) 1% (b) 3% (c) 5% (d) 7% (c) 10% 21. (a) volume increase (b) volume decrease (c) weight decrease (d) strength increase (c) increase in electrieal conduction 22. (a) dislocations (b) activators (c) a matrix (d) precipitates (c) cracks 23. (a) at the surface of the material (b) at grain boundarics (c) throughout the material (d) on dislocations (c) at no particular locadion. 24. (a) at the surface of the material (b) at grain boundaries (c) throughout the material (d) on dislocations (c) none of these 25. (a) decrease conductivity (b) increase ductility (c) pin dislocations (d) reduce corrosion (e) plan grain boundaries 26. (Q) decrease condectivity (b) increase ductility (c) pin dialocations (d) reduce cocrosion 27. (c) pis gralin boundaries (s) aryallization (e) crytellization (b) work hardauing (c) crosilinking (d) preclpitation hardening