at least 2 trombones.
The clarinet is a woodwind instrument, so it wouldn't be found in a brass orchestra.
basoon
The saxophone.
The tuba is the lowest in the brass family.
French horn
I'm not sure but i think its the french horn
Strings, winds, brass, percussion.
It Is called an Orchestra.
Woodwind, string, brass, percussionWoodwind,string,brass,percussion
F horn, trumpet, trombone, and tuba.
The violin is the highest instrument in a string orchestra. The violins are divided into two sections (1st violins and 2nd violins), the 1st violins usually play the tune and play higher than the 2nd violins. However, the piccolo is the highest instrument in a full orchestra. The difference between a string orchestra and a full orchestra is that the string orchestra has only stringed instruments while a full orchestra has strings, woodwinds, brass, and percussion.
The tuba is the biggest brass instrument used in a symphony orchestra. (There are some very rare special pieces of music where a composer might call for an instrument that is not normally in an orchestra. For example, there is a family of brass instruments called ophicleides that were used in the 1800's, and those came in many sizes, including ones as big as the tuba.)