Tutoring via skype ASTB/OAR test preparation Follow me! FacebooktwitterHatenaPocket- ARMED SERVICES VOCATIONAL APTITUDE TEST BATTERY ASTB ASVAB aviation officer candidate AVIATION SELECTION TEST BATTERY carburetor float type carburetor gravity fed fuel system kieno mechanical comprehension mechanics oar officer aptitude rating Thomas us coast guard aviation us marine corps aviation us naval aviation 2016-11-19 admin