[tikhonj]

I don't know if this question is an example, but people intentionally include "obvious" questions in surveys to check whether people are actually paying attention to the survey. There's a name for these, I just don't recall it at the moment—which shows you I don't have any survey-design experience myself :).

[jaredsohn]

According to a Google search, "Attention check questions" sounds like the right term

[disgruntledphd2]

Also known as lie scales and have been around since at least the 50's. (Eysenck was first, I believe).