You can put them onto the valves one at a time without a problem, but I wouldn't suggest it. You definitely don't want to mix them in the bottles. If you have to, you can wipe off the valves in between switching oils.
Any trumpet call used in the military was originally for bugle, which had no valves. As such, any military bugle call can be played on trumpet without changing valve fingerings.
On a standard Bb trumpet, the fingering for A is 1st and 2nd valve.
The different components of a Trumpet are the bell,the mouthpiece,first valve slide, second valve slide,third valve slide,the three valves,and the tunning slide.
First valve
2 valve
No.
valve horn
The part where you hold on to the horn is the valve casing. The valves are inside of that.
YES you can my instructor and i have a silver trumpet and we use valve oil if you don't have oil use saliva {spit}
A trumpet piston (commonly referred to as a valve) is the part that goes up and down within the valve. See the related links for a picture.
Yes, you can play taps on a trumpet using any valve combination, it will just be in a different key.
a four valved trumpet can allow the user to get different notes by pressing the different valve just like the 3 valve one