Book excerpt: Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. The updated, complete guide for preparing for the ASVAB, the required entrance exam for all branches of the U.S. Armed Forces Each year one million people take the ASVAB exam. Sponsored by the Department of Defense, the exam is administered year-round in high schools and at recruiting centers nationwide. ASVAB scores are used to measure aptitude for a variety of careers in the military. They are also used to determine whether or not potential military recruits qualify for enlistment and which military jobs are best for each recruit. McGraw-Hill's ASVAB with Downloadable Tests, Fourth Edition includes reviews of all subjects tested, tips and strategies for answering specific question types, sample exams modeled on the real exam, an answer key with complete explanations for every question, and inside information on ASVAB testing, scoring, and pursuing a military career. Author Dr. Janet E. Wall, a former key member of the Defense Department's ASVAB team, will guide you through every step of the military entrance process. • 4 full-length ASVAB practice tests • Downloadable interactive tests modeled on the real exam • Extensive review and practice for the challenging Assembling Objects section • In-depth review of all test subjects, from algebra to shop tools • Proven strategies for the ASVAB subtests that determine eligibility for enlistment and job training programs • The latest information from the Department of Defense and the military • Answers to common questions about military enlistment and jobs