and Answers 2025/2026 | 100% Correct
Verified Answers.
OVERVIEW.
50-question PiCAT Verification Test that is 100 % aligned with the 2025/2026 ASVAB-CAT
specifications.
Each of the five subtests will contain exactly 10 unique items (50 total). All numerical values,
vocabulary choices, and scenarios are original to serve the verification purpose.
SECTION 1 – GENERAL SCIENCE (GS) 10 QUESTIONS
1. Which process describes the conversion of atmospheric nitrogen (N₂) into ammonia
(NH₃) by soil bacteria?
A. Denitrification
B. Nitrification
C. Nitrogen fixation
D. Ammonification
Correct: C
Rationale: Nitrogen-fixing bacteria (e.g., Rhizobium) enzymatically reduce N₂ gas to NH₃,
making nitrogen usable by plants.
2. A lunar eclipse occurs only during which Moon phase?
A. New Moon
B. Full Moon
C. First Quarter
D. Last Quarter
Correct: B
Rationale: The Moon must be full for Earth to cast its shadow on the lunar surface.
3. What is the pH of a 0.001 mol/L aqueous solution of HCl?
A. 2
B. 3
C. 4
D. 5
, Correct: B
Rationale: HCl is a strong acid; [H⁺] = 1 × 10⁻³ mol/L → pH = –log(10⁻³) = 3.
4. Which organelle modifies and packages proteins into vesicles for secretion?
A. Nucleolus
B. Golgi apparatus
C. Lysosome
D. Peroxisome
Correct: B
Rationale: The Golgi apparatus sorts and ships proteins received from the rough ER.
5. The layer of Earth located directly above the outer core is the:
A. Asthenosphere
B. Mantle
C. Crust
D. Mohorovičić discontinuity
Correct: B
Rationale: Seismic-wave studies show the mantle sits atop the liquid outer core.
6. A sample of neon gas at 300 K and 2 atm is compressed to half its original volume while
temperature remains constant. The new pressure is:
A. 1 atm
B. 2 atm
C. 3 atm
D. 4 atm
Correct: D
Rationale: Boyle’s law: P₁V₁ = P₂V₂ → 2 atm × V = P₂ × ½V → P₂ = 4 atm.
7. Which biome is characterized by permafrost and low-growing vegetation?
A. Taiga
B. Tundra
C. Temperate grassland
D. Chaparral
Correct: B
Rationale: Arctic tundra soils remain frozen year-round, limiting root depth.
8. The atomic mass of an element is primarily determined by the number of:
A. Electrons
B. Isotopes
C. Protons plus neutrons