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About this exam

The Escola Naval is the Brazilian Navy's officer academy, and its entrance exam is the gate to a career as a naval officer. Candidates are typically young Brazilians who have completed or are finishing secondary school and who want to enter the academy's undergraduate officer-training program. The exam is demanding and broad: it tests Matemática, Física, Química, Português (grammar, reading comprehension and literature), Inglês, História and Geografia, and it also requires a written composition (redação). The subjects carry different weights, with mathematics and physics generally counting heavily, so a balanced but strategically focused preparation is essential. Because the exam rewards sustained accuracy rather than last-minute cramming, most successful candidates study over many months: they rebuild fundamentals in mathematics and physics, drill Portuguese grammar and interpretation, read regularly in English, and practice writing structured essays under time pressure. Working through past-style problems until the reasoning becomes automatic matters more than collecting summaries. The official notice for each year's selection sets out the syllabus, the current number of questions, the time allowed, fees, and scoring rules; candidates should consult the Navy's official recruitment site for the figures that apply to their cycle. This page is an independent study guide and is not affiliated with the Escola Naval or the Brazilian Navy.

What you'll study

Common questions

About Escola Naval preparation

What is the format of the Escola Naval exam?

It is a written exam combining multiple-choice questions across the subject areas with a required composition (redação). The official notice specifies the exact structure and scoring for each cycle, so check the Navy's official recruitment site rather than relying on older descriptions.

How hard is the exam compared with other Brazilian entrance exams?

It is generally considered demanding, especially in mathematics and physics, where questions require multi-step reasoning rather than recall. Portuguese interpretation and the composition also filter candidates. Consistent, deep practice over months is the realistic route; superficial review of many topics rarely holds up.

Can I retake the exam if I fail?

Retake rules, including any age or attempt limits, are defined in each year's official notice. Read the current notice carefully before assuming you can try again, and check the Navy's official site for the rules that apply to your situation.

How much time should I plan for each subject?

Give mathematics and physics the largest share, since they carry substantial weight and reward steady practice. Keep Portuguese and English in a weekly routine, and schedule regular essay writing. History, geography and chemistry still need coverage, so build a rotating weekly plan rather than studying one subject to exhaustion.

In what order should I study the subjects?

Start with the foundations you are weakest in, usually algebra, trigonometry and mechanics, because later topics depend on them. Run Portuguese and English in parallel from the beginning, since language skills improve slowly. Add chemistry, history and geography in rotation, and write practice essays throughout rather than only at the end.

Why do candidates commonly fail?

Frequent causes are weak algebra and trigonometry that undermine physics, careless reading of multi-step questions, poor time allocation during the exam, and neglecting the composition until too late. Many also memorize formulas without understanding when to apply them, which collapses under unfamiliar wording.

How is the composition assessed?

The redação is judged on standard criteria such as command of written Portuguese, structure, coherence, argumentation and adherence to the proposed theme. Practice planning and writing full essays under a time limit, then review them for grammar and organization. The official notice describes the criteria and any minimum requirement.

Where do I find the current question count, time limit and fees?

Those details change between cycles and are published by the Brazilian Navy in the official notice for each selection. Consult the Navy's official recruitment site for the authoritative figures, deadlines and procedures; this page deliberately does not state them.

Is this page officially connected to the Escola Naval?

No. This is an independent study resource and has no affiliation with the Escola Naval or the Brazilian Navy. Use it for orientation and practice planning, but always treat the official notice and the Navy's recruitment site as the authoritative source for rules and dates.