Once again, this is very important and is almost always asked on the written exam. Remember: 1  With the service brake depressed, the air loss rate should be less than 3 psi in 1 minute for single vehicles.  With the service brake depressed, the air loss rate should be less than 4 psi in 1 minute for combination vehicles.
Curfews are also challenged on constitutional grounds. The first youth curfew was adopted by Omaha, Nebraska in 1880. Chicago, the nationâs largest city with a curfew, passed its law in 1955. By 1960, 60 of the 110 US cities with a population over 100,000 had curfews. Thirty years later, 200 US cities had a population over 100,000, and 150 of these cities had curfews.
1868 the 14th amendment conferring citizenship was added to the Constitution. 1870 the 15th amendment barring racial discrimination in voting was added to the Constitution. Regardless of these amendments, from the 1880s into the 1960s many states enforced segregation through Jim Crow laws enacted by the states.3th Amendment to the U.S. Constitution: Abolition of Slavery (1865) Passed by Congress on January 31, 1865, and ratified on December 6, 1865, the 13th amendment abolished slavery in the United States.