[Which of the following is true regarding cotter pins?They are secured in external grooves in a shaft.They are inserted into a shaft hole and do not need to be bent.They are inserted into a shaft hole and bent around to secure.They are secured in internal grooves in a shaft or channel] [3 ngay o nuo ti hon] [kemonotachinojikan] [perdeu por politicagem, ele tava com muito mais condição que o fitzwater] [phir ngã tư tồn] [کتاب اقتدا به محمد باسلام] [ganziaba] [aq chÃÂnh truyện] [Cơ sở vật lý] [국토안전관리원]