[Funke]

okay for the first question the answer was D
reasoning:

The passage gives no information about the combined effect of a BAC of 0.10 and driving with a mobile phone. It cannot be assumed that this doubles the risk of having a crash - it could have less than double the effect or more than double the effect (option A). The passage states that having a BAC of 0.10 and speaking on the phone (whether handsfree or handheld) has a similar effect on the driver, and presumably a similar level of safety. Therefore option B is incorrect. Option C would be necessary for the results of the study to be valid, but is not necessarily true. Option D is supported by the fact that handheld and handsfree mobiles caused the same number of accidents. Note that option D is worded with less certainty than option C (‘the results suggest’).

D is also the answer for the second one:

Option D is the answer that can be concluded with most certainty from the passage. Since the inhabitants of Island R have not been exposed to mercury in drinking water, yet have a high incidence of Hobson’s Disease, it can be inferred that mercury in drinking water is not the only cause of the disease. Option A is incorrect. One example that may or may not suggest mercury is ‘safe’ is not enough to conclude that mercury in drinking water is ‘perfectly safe’. Option B is contradicted by the fact that ‘modern industry of any kind is unknown’ on Island R. Option C is explicitly contradicted by the passage, which states that mercury in drinking water occurs ‘only with certain types of industrial pollution’.

Basically the UMAT is an exam that examines you on how you are able to solve problems, look at patterns and solve things in a abnormal manner and how well you can understand the emotions that a person may be feeling. Sorry for the shoddy explanation but if i'm bothered i'll post up another one after i re-read another explanation. Oh yeah, this test is a requirement to be able to get into undergrad medicine in australia.