The Psychometric Engineering Branch Selector test consists of Multiple Choice Questions.
It is neither an academic achievement nor performance test so you need not to worry about the intelligence or knowledge to solve it.
It is a set of situations in the form of questions where you will have three options and you have to pick the best suitable option according to your own choice and decision.
There is no right or wrong answers. The best answer is the one you most identify with. This is not a test of Mathematics, Physics or Chemistry.
The test consists of general questions that are related to general and everyday choices that you make. So you need not worry for the same.
It will not measure you in any of your academic subjects. Hence you also need not study before taking the test.
No special preparation for the test is required.