This is our free ASVAB Mechanical Comprehension practice test. On the Mechanical Comprehension ASVAB test you will be given 20 minutes in which to complete 16 questions. You will need to be familiar with mechanics and applied physics. Topics will include basic mechanics, simple machines and fluid power. If you spend some time reviewing this material it will make a big difference in your final score. Start your review now with our ASVAB Mechanical Comprehension practice questions.

Question 1 |

A | 2 Kg |

B | 5 Kg |

C | 10 Kg |

D | 20 Kg |

Question 2 |

A | 8 |

B | 16 |

C | 18 |

D | 24 |

Question 3 |

A | The amplification of force in a hydraulic system. |

B | The relationship between force and volume of a liquid. |

C | The definition of pressure as pounds per square inch. |

D | The manner in which liquids conform to their container. |

Question 4 |

A | The first child will stay stationary on the ground. |

B | The second child will bounce off the seesaw into the air. |

C | The first child will bounce off the seesaw into the air. |

D | The first child will be lifted into the air, but remain seated. |

Question 5 |

A | Gravity |

B | Magnitude |

C | Volume |

D | Mass |

Question 6 |

A | KE = ½ m ^{2}v |

B | (1/3)(KE) = m/v ^{2} |

C | 2(KE) = mv ^{2} |

D | 3(KE) = m ^{2}v |

^{2}). Reorienting, we find: 2KE = mv

^{2}.

Question 7 |

A | 724 watts |

B | 746 watts |

C | 768 watts |

D | 782 watts |

Question 8 |

A | Fulcrum |

B | First-class lever |

C | Second-class lever |

D | Third-class lever |

Question 9 |

A | One |

B | Two |

C | Three |

D | Four |

Question 10 |

A | remains the same |

B | increases, then decreases |

C | increases |

D | decreases |

Question 11 |

A | The amount of lift is decreased as the wedge is moved horizontally. |

B | The amount of lift is increased as the wedge is moved horizontally. |

C | The amount of lift is decreased as the wedge is moved vertically. |

D | The amount of lift is increased as the wedge is moved vertically. |

Question 12 |

A | 1,000 |

B | 5,000 |

C | 10,000 |

D | 20,000 |

Question 13 |

A | Upward reactive force |

B | The energy of movement |

C | Gravity’s relationship to mass |

D | Newtons and distance |

Question 14 |

A | 2.0 |

B | 2.5 |

C | 3.0 |

D | 3.5 |

The bottom of the tank’s surface area is 12 ft x 13 ft = 144 inches x 156 inches. Since pressure is in pounds per square inch (psi), we have to convert to inches. The surface area is 22,464 inches.

The psi is 58,500 / 22,464 is approximately 2.6. The closest answer is (B).

Question 15 |

A | C and D |

B | B and D |

C | C and B |

D | B, C, and D |

Question 16 |

A | Block and tackle |

B | Third-class lever |

C | Wedge |

D | Wheel and axle |

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