Electrical Symbols — Switches and Relays

The vector stencils library "American football positions" contains 38 symbols for drawing diagrams of American football positions.
"In American football, each team has eleven players on the field at one time. The specific role that a player takes on the field is called their position. Under the modern rules of American football, teams are allowed unlimited substitutions, that is teams may change any number of players after any play. This has resulted in the development of three "platoons" of players, the offense (the team with the ball, who is trying to score), the defense (the team trying to prevent the other team from scoring, and to take the ball from them), and the special teams (who play in kicking situations). Within those platoons, various specific positions exist depending on what the player's main job is." [American football positions. Wikipedia]
The symbols example "Design elements - Football positions (for perspective view)" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Football solution from the Sport area of ConceptDraw Solution Park.

The vector stencils library "American football positions" contains 38 symbols for drawing diagrams of American football positions.
"A football game is played between two teams of 11 players each. It is legal to have fewer players on the field, but playing with more on the field is punishable by a penalty. Teams may substitute any number of their players between downs; this "platoon" system replaced the original system, which featured limited substitution rules, and has resulted in teams utilizing specialized offensive, defensive and special teams squads.
Individual players in a football game must be designated with a uniform number between 1 and 99. NFL teams are required to number their players by a league-approved numbering system, and any exceptions must be approved by the Commissioner. NCAA and NFHS teams are "strongly advised" to number their offensive players according to a league-suggested numbering scheme." [American football. Wikipedia]
The symbols example "Design elements - Football positions" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Football solution from the Sport area of ConceptDraw Solution Park.

The vector stencils library "Baseball positions" contains 13 symbols: pitcher, catcher, first baseman, second baseman, third baseman, shortstop, left fielder, center fielder, right fielder, baseball position, pointing arrows.
"Baseball is unlike most other competitive sports in that the defense is given control of the ball. Additionally, the number of players on the field at any given time is lopsided in favor of the defense which always has nine players on the field; the offense has between one and four. ...
Each play starts with the ball in the hands of the pitcher, whose job as a member of the defense is to use his skills to somehow prevent the batter from reaching base. The pitcher throws the ball toward the catcher, whose must catch the pitched ball if it is not hit by the batter. In each half-inning, the defense attempts to force three outs.
There are three basic ways in which an out can occur: 1.) If three strikes are recorded against the batter, 2.) if a ball hit by a batter is caught by a defensive player before it hits the ground, or 3.) if a runner who is between bases or has not reached a base to which he is forced is put out by a defensive player in possession of the ball.
If the batter manages to hit the ball, all nine defensive players become active and use the ball in attempting to prevent the batter from reaching base and runners already on base from advancing or scoring. while the offense is busy attempting to move runners around the baseball diamond toward home plate, the defense uses the ball in various ways to achieve outs.
If the defense forces three outs, their team is moved into the offensive role. The exception is if it is the ninth or an extra inning and they are ahead, in which case, the game ends and the defensive team wins." [Defense (sports). Wikipedia]
The symbols example "Design elements - Baseball positions" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Baseball solution from the Sport area of ConceptDraw Solution Park.

The vector stencils library "Basketball positions" contains 12 symbols for drawing basketball positions diagrams.
"The three basketball positions normally employed by organized basketball teams are the guards, forwards, and the center. More specifically, they can be classified into the five positions: point guard (PG), shooting guard (SG), small forward (SF), power forward (PF), and center (C). The rules of basketball do not mandate them, and in informal games they are sometimes not used." [Basketball positions. Wikipedia]
The symbols example "Design elements - Basketball positions" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Basketball solution from the Sport area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ sport-basketball

"Directional control valves are one of the most fundamental parts in hydraulic machinery as well and pneumatic machinery. They allow fluid flow into different paths from one or more sources. They usually consist of a spool inside a cylinder which is mechanically or electrically controlled. The movement of the spool restricts or permits the flow, thus it controls the fluid flow. ...
While working with layouts of hydraulic machinery it is cumbersome to draw actual picture of every valve and other components.instead of pictures symbols are used for variety of components in the hydraulic system to highlight the functional aspects. symbol for directional control valve is made of number of square boxes adjacent to each other depending on the number of positions.connections to the valve are shown on these squares by capital letters.usually they are named only in their normal position and not repeated in other positions.actuation system of the valve is also designated in its symbol." [Directional control valve. Wikipedia]
The Mac template "Pneumatic 5-ported 3-position valve" for the ConceptDraw PRO diagramming and vector drawing software is included in the Mechanical Engineering solution from the Engineering area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ engineering-mechanical

The vector stencils library "Soccer (Football) positions" contains 18 symbols for drawing association football (soccer) positions diagram.
"In the sport of association football, each of the eleven players on a team is assigned to a particular position on the field of play. A team is made up of one goalkeeper and ten outfield players who fill various defensive, midfield and attacking positions depending on the formation deployed. These positions describe both the player's main role and their area of operation on the pitch." [Association football positions. Wikipedia]
The symbols example "Design elements - Soccer (Football) positions" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Soccer solution from the Sport area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ sport-soccer