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.
As an employer, you may require the services of a foreign national (alien) to work at your company or business. If the individual is already a permanent resident (green card holder), you may hire that individual, but you must comply with the employment verification requirements.