How to prepare for the PNB Exam?

In este book, a number of test exams placed in Madrid (DGMM) and in different Autonomous Communities have been compiled, they have been grouped and adapted to R.D. 875/2014 and a clarifying comment has been added in cases that presented some difficulty. With this, the applicant for the t title of Skipper for Basic Navigation (PNB) is made available to an essential tool to pass the exam.