After a candidate has completed the ASVAB they must wait one calendar month before retaking the exam. An additional calendar month must pass before retesting a second time. Six calendar months must pass before retaking the test a third time. The scores received from the ASVAB may be used for enlistment for up to two years from the initial test date. 
Your ASVAB scores determine what jobs you will qualify for in the military. But before you embarrass yourself in front of active duty service members, know that a job in the Army and the Marine Corps is called an MOS, which is an acronym for Military Occupational Specialty. In the Air Force, jobs are called AFSC – Air Force Specialty Code. In the Navy and Coast Guard, jobs are called ratings, or rate for short. Check the links below to see which jobs you will qualify for.

The Assembling Objects subtest of the Armed Services Vocational Aptitude Battery is designed to measure your ability for visualizing spatial relationships. In this section of the ASVAB you will be required to view pieces of an object and then determine how those pieces fit together. If you’re asking yourself why this ability is important, the answer is because good spatial skills allow people to figure out maps and interpret graphs and technical drawings. For the Assembling Objects subtest you will 15 minutes to solve 16 problems on the CAT-ASVAB test and 16 minutes to solve 25 questions on the paper version of the ASVAB.
I will highly recomend this study guide to anyone in need of help studying for the ASVAB, I have only had it for a few days and I already see a tremendous amount of improvement in my practice tests. This book gives helpful tips on test taking which has always been something I’ve struggled with, but not anymore! Throughout this study guide you get help with every part of the ASVAB and it has a practice test for each part, which is extremely helpful to me because it shows me what I retained well and what I need to work on still. This study guide is the best tool I have used in aid of my ASVAB test preparation, and I know my score will reflect highly due to the ASVAB SECRETS Study Guide.
The vast majority of people who take the CAT-ASVAB test finish it as the time constraints are not very aggressive. However, if a respondent isn’t able to finish in time, the remaining unanswered questions are scored as if the respondent had answered them randomly. This is obviously not an ideal way to finish up the test and most often results in even poorer scores.
Mathematics Knowledge. This section measures one's knowledge of mathematical principles and concepts. Arithmetic, geometry, and high school level algebra will comprise most of the problems. Knowing how to factor, solve, and simplify algebraic expressions; understanding exponents, absolute values, and systems of equations and solving inequalities will be helpful. You will also encounter words problems. Test takers should know how to solve word problems by creating algebraic equations. See product recommendations for more advice.
Understanding the latest test-taking strategies is essential to preparing you for what you will expect on the exam. A test taker has to not only understand the material that is being covered on the test, but also must be familiar with the strategies that are necessary to properly utilize the time provided and get through the test without making any avoidable errors. Test Prep Books has drilled down the top test-taking tips for you to know.
The scores from the other tests are used to determine what type of specialty you might be best suited for.  These "composite" scores (also known as line scores, MOS scores, or aptitude area scores) are calculated by adding together combinations of the different sub test standard scores. These composite scores are then used to determine which different military jobs (aka Military Occupational Specialties or MOS) may be the best fit for you.  Each branch of the military will have their own approach to these composite scores.

Whenever possible, military personnel (active duty, National Guard, and reserve) will arrange to take the in-service ASVAB from your service’s Test Control Officer at a military installation; however, on a case-by-case basis, Military Entrance Processing Station (MEPS) commanders may authorize administration of an ASVAB for in-service purposes at their MEPS. You must submit a memorandum from your unit commander requesting the MEPS to administer an ASVAB. The memorandum must include;
A resistor is designed to limit the amount of current flowing through a circuit and is used to precisely control the amount of voltage and current present at various points within an electrical circuit.  When current flows through a resistor the resistor produces heat and managing heat within the circuit is a very important design consideration for engineers.
The AFQT composite score is used by all military branches to determine basic acceptance; however, there are other composite scores that are calculated by using unique formulas that group the subtests in order to determine the aptitude for a particular type of work. For instance, to work in Electronics Repair within the Marine Corp, the EL score, or Electronics Repair composite score, would be calculated. This score consists of the subtests for Arithmetic Reasoning, Mathematics Knowledge, Electronics Information, and General Science. To become an Unmanned Aerial System Avionics Technician, the individual must have an EL score of 105, while it would take 115 to become an Aviation Logistics Information Management and Support Specialist.
Mechanical Comprehension. Items contained within this section include topics that would typically be found in an introductory high school physics course and the application of these topics within a variety of situations. The questions in this portion of the test gauge examinees’ knowledge of principles related to gases and liquids, and their understanding of the ways in which these properties affect pressure, volume, and velocity. This subtest also includes questions that relate to the components and performance of mechanical devices.
It’s best to keep the contact information of your nearest recruiting office or your actual recruiter; they are your best bet for getting your scores. ASVAB scores are valid for up to two years before you need to retest so most offices will send your current scores via mail. If you can’t get yours by mail, you can pick them up from your local recruiting office.

Law prohibits applicants in Category V from enlisting.[6] In addition, there are constraints placed on Category IV recruits; recruits in Category IV must be high school diploma graduates but cannot be denied enlistment solely on this criteria if the recruit is needed to satisfy established strength requirements. Furthermore, the law constrains the percentage of accessions who can fall between Categories IV-V (currently, the limit is 20% of all persons originally enlisted in a given armed force in a given fiscal year).[6]

Though you may be intimidated by studying 5-7 nights a week, remember that this is only for a few months. The investment you make now in yourself can have great rewards - IF you put in the time! Just be honest with yourself, find out what you need to work on the most, and stick with your schedule! You may also want to set goals, such as "I want to take a practice test and score 80% or better on it within a month." However you choose to study, be consistent, be confident, and you will be successful!
If school district or open-enrollment charter school has entered into a prior contract under which a vocational aptitude test that does not comply with the requirements for an alternative test outlined above, then the school district, open-enrollment charter school, or high school may elect not to provide the ASVAB for the term of the contract. On the expiration of the contract term, the requirements outlined in this letter become applicable to the school district, open-enrollment charter school or high school.

Here at ASVABTutor, we provide comprehensive study guides for each section of the ASVAB test that will help you prepare to ace the Armed Forces Vocational Aptitude Battery.  The ASVAB exam is a series of multiple-choice questions broken down into 9 subjects with an emphasis on determining your aptitude in four primary areas: Math, Verbal, Science and Technical, and Spatial. 
As part of your ASVAB prep you should get a good ASVAB study guide. Having the right study material can make a huge difference in your final score. There are a lot of ASVAB books to choose from, and some of them aren’t very good. We have reviewed all of the best study guides and our list includes only the best of the best. These are the highest-rated review books that have stood the test of time. You won’t go wrong with any of these options. These are the ASVAB study guides that we recommend:
My student and I like how there are videos in between. This allows him to visually see and hear about the information in a different way. It breaks up the book and makes it more interesting. I also like the setup of the book. So far, he has taken the Word Knowledge practice test after reviewing and received a score of 32/35, which seems to be a very good score. He wants to join the National Guard but did not score high enough on the ASVAB the two times he took the test previously. This study guide seems to really be helping him with the secrets and tools to achieve a higher score.
The ASVAB is a series of timed aptitude tests that are used to classify selected candidates into appropriate job roles as well as ultimately decide the eligibility of candidates for US military service.  In other words, perform poorly on this test and you could severely limit your opportunities in the military or even prevent yourself from serving.
The ASVAB test is taken by individuals interested in joining the U.S. military. It may be taken by high school students in the 10th, 11th or 12th grade. Or, it may be taken by someone who has earned a GED or higher degree. Along with determining your suitability for enlistment, the score you receive on this test lets officials know what military occupational specialties you may qualify for. 
The Armed Services Vocational Aptitude Battery (ASVAB) is a multiple choice test, administered by the United States Military Entrance Processing Command, used to determine qualification for enlistment in the United States Armed Forces. It is often offered to American high school students when they are in the 10th, 11th and 12th grade, though anyone eligible for enlistment may take it.[2]