ASVAB Exam 2027 | 200 Real Test Questions
& Detailed Answers | Complete ASVAB Study
Guide & Exam Prep
1. Proteins are:
A) Used primarily for energy
B) *Necessary for body's maintenance, growth, and repair
C) Stored as fat
D) Only found in plants
Answer: B
Rationale: Proteins are essential for tissue repair, growth, and maintenance.
2. Carbohydrates and fats are:
A) *Used primarily for energy
B) Used for repair
C) Building blocks of DNA
D) Enzymes
Answer: A
Rationale: Carbohydrates and fats are the body's primary energy sources.
3. Water boils at ____ degrees Fahrenheit.
A) 100
B) 212
C) *212
D) 373
Answer: B
Rationale: Water boils at 212°F at standard atmospheric pressure.
,4. Water boils at ____ degrees Celsius.
A) *100
B) 212
C) 0
D) 373
Answer: A
Rationale: Water boils at 100°C.
5. Water boils at ____ K on the Kelvin scale.
A) 100
B) 212
C) *373
D) 0
Answer: C
Rationale: Water boils at 373 Kelvin.
6. Veins:
A) Carry blood away from the heart
B) *Carry blood from capillaries toward the heart
C) Are the smallest blood vessels
D) Carry oxygenated blood only
Answer: B
Rationale: Veins return blood from capillaries to the heart.
7. Arteries:
A) *Carry blood away from the heart
B) Carry blood toward the heart
,C) Are the smallest blood vessels
D) Carry deoxygenated blood only
Answer: A
Rationale: Arteries carry blood away from the heart.
8. Ventricles are:
A) Upper chambers of the heart
B) *Lower chambers of the heart
C) Blood vessels
D) Valves
Answer: B
Rationale: Ventricles are the lower chambers that pump blood out.
9. Red blood cells are the component of blood which:
A) Fight infection
B) *Carries oxygen
C) Clots blood
D) Produces antibodies
Answer: B
Rationale: RBCs contain hemoglobin which carries oxygen.
10. Rust is formed on iron when:
A) Iron is heated
B) *An electrolyte (e.g., H2O) turns iron and oxygen into iron oxide
C) Iron is cooled
D) Iron is painted
Answer: B
Rationale: Rust is iron oxide formed by oxidation.
, 11. Fe2O3 is:
A) Iron
B) *Iron oxide (rust)
C) Iron chloride
D) Iron sulfide
Answer: B
Rationale: Fe2O3 is the chemical formula for iron oxide.
12. Iron forming rust is an example of a ____ process.
A) Physical
B) *Chemical
C) Mechanical
D) Nuclear
Answer: B
Rationale: Rusting is a chemical change (oxidation).
13. Respiration is the process by which animals:
A) *Convert oxygen and sugars into carbon dioxide and water
B) Convert carbon dioxide and water into oxygen and sugar
C) Produce light
D) Absorb nutrients
Answer: A
Rationale: Cellular respiration produces CO2 and H2O from O2 and glucose.
14. Photosynthesis is the process by which plants:
A) Convert oxygen and sugars into carbon dioxide and water
& Detailed Answers | Complete ASVAB Study
Guide & Exam Prep
1. Proteins are:
A) Used primarily for energy
B) *Necessary for body's maintenance, growth, and repair
C) Stored as fat
D) Only found in plants
Answer: B
Rationale: Proteins are essential for tissue repair, growth, and maintenance.
2. Carbohydrates and fats are:
A) *Used primarily for energy
B) Used for repair
C) Building blocks of DNA
D) Enzymes
Answer: A
Rationale: Carbohydrates and fats are the body's primary energy sources.
3. Water boils at ____ degrees Fahrenheit.
A) 100
B) 212
C) *212
D) 373
Answer: B
Rationale: Water boils at 212°F at standard atmospheric pressure.
,4. Water boils at ____ degrees Celsius.
A) *100
B) 212
C) 0
D) 373
Answer: A
Rationale: Water boils at 100°C.
5. Water boils at ____ K on the Kelvin scale.
A) 100
B) 212
C) *373
D) 0
Answer: C
Rationale: Water boils at 373 Kelvin.
6. Veins:
A) Carry blood away from the heart
B) *Carry blood from capillaries toward the heart
C) Are the smallest blood vessels
D) Carry oxygenated blood only
Answer: B
Rationale: Veins return blood from capillaries to the heart.
7. Arteries:
A) *Carry blood away from the heart
B) Carry blood toward the heart
,C) Are the smallest blood vessels
D) Carry deoxygenated blood only
Answer: A
Rationale: Arteries carry blood away from the heart.
8. Ventricles are:
A) Upper chambers of the heart
B) *Lower chambers of the heart
C) Blood vessels
D) Valves
Answer: B
Rationale: Ventricles are the lower chambers that pump blood out.
9. Red blood cells are the component of blood which:
A) Fight infection
B) *Carries oxygen
C) Clots blood
D) Produces antibodies
Answer: B
Rationale: RBCs contain hemoglobin which carries oxygen.
10. Rust is formed on iron when:
A) Iron is heated
B) *An electrolyte (e.g., H2O) turns iron and oxygen into iron oxide
C) Iron is cooled
D) Iron is painted
Answer: B
Rationale: Rust is iron oxide formed by oxidation.
, 11. Fe2O3 is:
A) Iron
B) *Iron oxide (rust)
C) Iron chloride
D) Iron sulfide
Answer: B
Rationale: Fe2O3 is the chemical formula for iron oxide.
12. Iron forming rust is an example of a ____ process.
A) Physical
B) *Chemical
C) Mechanical
D) Nuclear
Answer: B
Rationale: Rusting is a chemical change (oxidation).
13. Respiration is the process by which animals:
A) *Convert oxygen and sugars into carbon dioxide and water
B) Convert carbon dioxide and water into oxygen and sugar
C) Produce light
D) Absorb nutrients
Answer: A
Rationale: Cellular respiration produces CO2 and H2O from O2 and glucose.
14. Photosynthesis is the process by which plants:
A) Convert oxygen and sugars into carbon dioxide and water
