There is a good site on the internet for various music
theory drills. A link to its Chord Drills is found at the
bottom of this page. Perhaps you have it bookmarked already.
We are visiting the site
for the practice drills.
When you choose the Chord Drills, you will find a Settings
button for setting up the drill to meet your present needs.
Following
Lesson 7, I recommend you use the following settings:
Build Chords on Staff
Any Root
No Inversions
Major, minor, augmented and diminished triads
Build
Triad Drill