Tero...Plenty of good advice above, just to say that if you are in CAS, you should advise the controller that you are in turbulent conditions, But, if you're taking your skills test, I doubt you will experience anything other than mild turbulence, in which case forget trim because it's useless in such conditions, just fly the plane using stick(yoke) to maintain altitude, as has been said before, small inputs, you don't want to overstress the airframe, just keep it as close as you can to maintain approximate altitude, but above all, keep an eye on your airspeed, I don't think you will experience anything as medium or severe turbulence on a skills test, but worth bearing in mind for the future.
Good luck with your skills test.
P.S. As FREDAcheck says, you should be able, in mild turbulence, you should be able to keep within +/- 100 ft, forget the trim, just fly the plane.
Last edited by Lightning6; 27th Jul 2009 at 02:06.
Reason: Added text.