<prompt> Type E circuit is used for?Spontaneous ventilationControlled ventilationChildrenAn used for all of the above indications  <response>: Ans. is c i.e., Children Circuit of choice for spontaneous ventilation in adult - Mapleson A Circuit of choice for controlled ventilation in adult - Mapleson D Bain circuit Circuit of choice for children - Type F, i.e. Jackson-Rees first choice and type E, i.e. Ayres T piece second choice 