The test measures competency in 9 different subjects, which include General Science, Electronics Information, Auto and Shop Information, Mechanical Comprehension, Assembling Objects, Word Knowledge, Paragraph Comprehension, Arithmetic Reasoning, and Mathematics Knowledge. These last four sections- Word Knowledge, Paragraph Comprehension, Arithmetic Reasoning, and Mathematics Knowledge are the most important, as they make up something called the AFQT (Armed Forces Qualifications Test). An applicant’s AFQT score is what determines whether or not they are able to serve in the military at all, as each branch has minimum scores for enlistment.
The Mechanical Comprehension section of the ASVAB practice test measures your understanding of basic mechanical principles and mechanisms. You may be asked why an intake valve on a pump opens when the piston goes down, or what direction friction is going when shown a diagram of a skier. The CAT-ASVAB has 16 questions in 20 minutes; the paper-and-pencil version has 25 questions in 19 minutes.
International protocols restrict the use, or have even created international bans on weapons, notably weapons of mass destruction (WMD). International conventions define what constitutes a war crime, and provides for war crimes prosecution. Individual countries also have elaborate codes of military justice, an example being the United States' Uniform Code of Military Justice that can lead to court martial for military personnel found guilty of war crimes.
Once the ASVAB is over, participants are given a score. This score is used by recruiters to determine which branch of the military would be a good fit for a given test-taker. The most important score for the ASVAB for military purposes is the AFQT score. The AFQT score looks at results from the following sections: Arithmetic Reasoning (AR), Math Knowledge (MK), and multiplies the Verbal Composite (VE) score by two. This is because the Verbal Composite Score is composed of both the Word Knowledge and the Paragraph Comprehension scores. Each branch of the military requires a different minimum AFQT score for its members. For the army and marines, this number is 31, for the navy 35, the air force 36, and the coast guard 45. Therefore, this test is a crucial part of any military career, and can determine potential jobs and advancement opportunities. Along with advancement opportunities come higher salaries and greater benefits, which makes the ASVAB an essential element for prospective military service personnel at any level.