The camshaft. The valve train consists of the valves and a mechanism that opens and closes them. The opening and closing system is called a camshaft. The camshaft has lobes on it that move the valves up and down, as shown in Figure 5. Most modern engines have what are called overhead cams.
A Foreign Service Officer (FSO) is a commissioned member of the United States Foreign Service. As diplomats, Foreign Service Officers formulate and implement the foreign policy of the United States.
International Services. If you are a taxpayer who lives outside the United States, the IRS has full-time permanent staff in the Paris U.S. embassy. This office has tax forms and publications, can help you with account problems, and answer your questions about notices and bills.