8.2 Integrated Review & Local Practice

Why Integrated Local Review Helps

This site's mathematics, physics, chemistry, and nuclear-science chapters form an editorial transferable-STEM framework. Connecting them can strengthen flexible recall, but current public Navy sources do not show whether the NAPT combines these subjects, separates them, or covers them at all. The worked problems below review this guide only; they do not simulate a published exam blueprint.

Concept Refresher: Arithmetic & Algebra (Chapter 1)

Percentages, fractions, and linear equations connect many of this guide's local STEM examples; a textbook physics or chemistry calculation often uses algebra with units. Worked example: a fuel tank holds 240 gallons at full capacity. After a leak, it contains 5/8 of its capacity. A damage-control team then adds fuel until the tank reaches 90% full. How many gallons did the team add?

First, find the starting amount: 5/8 × 240 = 150 gallons. Then find the target amount: 90% × 240 = 216 gallons. The amount added is the difference: 216 − 150 = 66 gallons. Notice that the question never asked for 150 or 216 directly — reading carefully to identify exactly what is being asked is a useful problem-solving habit.

Concept Refresher: Geometry & Trigonometry (Chapter 2)

The Pythagorean theorem (a² + b² = c²) and basic trigonometric ratios (sine, cosine, and tangent) show up in any problem involving angles, supports, or distances. Worked example: a brace spanning a machinery-space hatch forms a right triangle with legs of 9 feet and 12 feet. What length of brace is needed?

c² = 9² + 12² = 81 + 144 = 225, so c = √225 = 15 feet. This is a 3-4-5 right triangle scaled up by a factor of 3 — a pattern worth recognizing instantly rather than recalculating from scratch every time it appears.

Concept Refresher: Mechanics (Chapter 3)

Kinematics describes motion using initial velocity, final velocity, acceleration, time, and distance. Worked example: a cart starts from rest and accelerates uniformly at 2 m/s² for 6 seconds. How far does it travel?

Because the cart starts from rest, use d = ½at²: d = ½ × 2 m/s² × (6 s)² = ½ × 2 × 36 = 36 meters. A common trap is stopping after finding the velocity (v = at = 2 × 6 = 12 m/s) and mistaking that for the distance traveled — always check which variable the question is actually asking for.

Concept Refresher: Electricity & Thermodynamics (Chapter 4)

Ohm's law (V = IR) and series-circuit resistance addition are standard introductory physics tools in this guide. Worked example: a series circuit has a 24-volt battery and two resistors, 6 ohms and 2 ohms. What current flows through the circuit?

In series, resistances add: 6 Ω + 2 Ω = 8 Ω total. Then I = V ÷ R = 24 V ÷ 8 Ω = 3 amps. Thermodynamics problems in this same chapter use a parallel process: Q = mcΔT relates heat energy to mass, specific heat capacity, and temperature change — the same identify-the-knowns, pick-the-formula, solve-for-the-unknown approach used above for the circuit.

Concept Refresher: Chemistry (Chapters 5–6)

The mole concept connects mass to countable particles using molar mass. Worked example: carbon dioxide (CO2) has a molar mass of 44 g/mol. How many moles are in a 22-gram sample?

Moles = mass ÷ molar mass = 22 g ÷ 44 g/mol = 0.5 mol. Gas-law problems from Chapter 6 use the same substitution pattern: identify the known variables, choose the right relationship (Boyle's law, Charles's law, or the combined gas law), and solve for the unknown.

Concept Refresher: Nuclear Science (Chapter 7)

Half-life describes the time it takes for half of a radioactive sample to decay. Worked example: a sample with an 8-day half-life starts at 80 grams. How much remains after 24 days?

24 days ÷ 8-day half-life = 3 half-lives. Each half-life halves the remaining mass: 80 g → 40 g → 20 g → 10 g. The key insight is that half-life problems are about counting how many full halving periods have elapsed, not about calculating a continuous decay rate from scratch.

Final Integrated Review Table

Continued Practice with This Guide's Question Bank

Once you have reviewed every chapter, use this site's paired practice bank as optional local reinforcement. Its four categories describe the editorial bank, not official NAPT domains. Two habits can make the local practice more useful:

• Mix the local category order if you want to practice mental switching. Shuffling is a learning choice, not a simulation of the real NAPT, whose organization is not publicly described.
• Review every explanation, right or wrong. A correct guess built on a misunderstood formula is a bigger long-term risk than a wrong answer you now understand — use the explanation text to confirm you got the right answer for the right reason, not just the right answer.

After You Pass: What Comes Next

A qualifying NAPT score is one input to enlisted Nuclear Field qualification under the NFb route, evaluated alongside your Armed Services Vocational Aptitude Battery (ASVAB) composite scores — it is not an automatic placement by itself. If you are preparing separately for the ASVAB or AFCT, use the corresponding guides for those exams; do not assume their format or policies transfer to the NAPT.

After current Nuclear Field qualification criteria are met, the pipeline continues: recruit training, followed by rating-specific A School, then Naval Nuclear Power School, prototype training, and finally a fleet assignment in one of the current enlisted Nuclear ratings — Machinist's Mate, Electrician's Mate, or Electronics Technician. The public Nuclear Ratings page describes later training, but it does not validate this site's chapter list as NAPT content or as the curriculum of every training stage. Treat the study habits here as general learning habits.