Obviously, such training ... and therefore, such exams ... will focus on
practicum, not "book larnin'."
After all, if you want to learn how to
swim, you can't do that by (just) reading a book on the subject. And so, if you want to know whether or not a person can actually swim, multiple-choice just won't do.
If you're going to pursue this, I suggest that you do so
holistically: "the journey is the reward." Enroll in professional training that leads up to the exam, but focus on the training, not the exam (which is the icing on the cake). Your goal is
not "to pass a test," but rather, "to become a successful
professional swimmer." You're hiring a swimming coach (with a life-ring).
Notice carefully
what subjects are discussed in training materials. Professional instructional designers, guided by people who are doing these jobs already, choose carefully what to include in each curriculum, what to emphasize, and in what order to present it (and then, test it). Carefully notice what these choices were; what approach they took. These are the "life skills" that experienced people decided were most critical for a particular role in the actual workplace. You're not there to "pass a test." You're there to learn a practical skill. The experience will be only as good as
you make it.
