A switch is a device for opening and closing an electric circuit – when the switch is open, no current flows.  Switches are categorized by the number of poles and throws they provide with the number of poles designating the number of electrical circuits the switch can control and the number of throws indicating the number of connections the switch can make between those circuits.

Welcome to ASVAB Practice Tests, a free website that is designed to help you with your ASVAB test prep and review. Each of our free ASVAB practice tests includes challenging practice questions along with detailed explanations. Whether you are preparing for a career in the Army, Navy, Air Force, or the Marines you will need to pass the ASVAB test. If you study for this test it will make a big difference in your final score. Get started now with our free ASVAB practice tests!

A whopping 91% of the reviewers of this ASVAB study guide on Amazon gave it five stars. The other 9%? Four stars. If you can’t trust Amazon reviewers, who can you trust? The beauty of this simply titled study guide is in the depth of explanations in how the answers are derived, particularly in the mathematics sections where the authors go to great lengths to illustrate the more complex questions.
The various armed forces adopted all of those aspects in 1976. At that point in time, the test was in its written form rather than today’s more common form (computerized test format). The written form covers all of the previously mentioned areas as well, which is why both forms are still available. All-in-all that answers the question concerning the intention of the test.