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.
Diplomats come from many different backgrounds, yet they all work to advance American interests abroad. They serve in countless roles: from economists and health care specialists to translators and administrative assistants. Most diplomats are Foreign Service Officers (FSO).Every FSO must pass the Foreign Service Exam which consists of a written exam, an oral interview, and a negotiating exercise.f your job is promoting international trade, for example, youâll need to learn about a countryâs economy, business practices, and banking system. Youâll also need to learn the etiquette and customs of your host country and be polite, tactful, and patient.