Imininingwane ye-aInqwaba yeshidi lensimbi emise okwe-Ungokuvamile kuhlanganisa ukucaciswa okulandelayo:
Ubukhulu: Ubukhulu nobukhulu benqwaba yeshidi lensimbi, njengobude, ububanzi, nobukhulu, bucaciswe ngokuya ngezidingo zephrojekthi.
Izakhiwo eziphambanayo: Izakhiwo ezibalulekile zenqwaba yeshidi lensimbi emise okwe-U ihlanganisa indawo, umzuzu we-inertia, i-modulus yesigaba, nesisindo ngobude beyunithi ngayinye. Lezi zakhiwo zibalulekile ekubaleni ukwakheka kwesakhiwo nokuzinza kwenqwaba.