Kanji Radical Quiz

The 42 most commonly used Kanji Radicals (Top 75%) in the 2,136 Jōyō Kanji. 

Update 1: Extra details of the answer automatically have a linebreak now.

Update 2: 囗 (enclosure): 国园固 and 口 (mouth): 吃唱叫 are better differentiated now since you wouldn't have to differentiate them without context as quizzed originally.