| 434 / | HD | EDUCATION AND DEMONSTRATION |
| 322 | DF | QUESTION OR PROBLEM ELICITING RESPONSE {8} |
| 327 | DF | .~ Correctness of response indicated to examine by self-operating or examinee actuated means {12} |
| 335 | DF | .~.~ By means including electrical component {8} |
| 339 | ![]() | .~.~.~ Part of electric circuit completed when examinee depresses portion of sheet having electric conductor associated therewith |