Most types of Iron are magnetic, however depending on its composition and purity, there are kinds that are not magnetic. For example, Steel is mostly Iron, Carbon, and a few o â¦ ther lesser materials, and can be magnetic. Pure Iron is of course magnetic.
Definition of airman. 1  1 : a civilian or military pilot, aviator, or aviation technician. 2  2 : an enlisted person in the air force: such asa : an enlisted person of one of the three ranks below sergeantb : an enlisted person ranking above an airman basic and below an airman first class.
Senior airman (SrA) is the fourth enlisted rank in the United States Air Force, just above airman first class and below staff sergeant. It has a pay grade of E-4. Between its approval on 30 December 1975 (with implementation 1 June 1976) and 19 March 1991, senior airmen wore sleeve chevrons with blue center stars instead of silver to distinguish them from the non-commissioned officer rank of  sergeant , also a pay grade of E-4.