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Mechanical Reasoning

Mechanical Reasoning practice

Pulleys
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Using one fixed pulley on a beam, lifting a sack takes a pull of about:
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Levers, pulleys, gears, and how machines work
Mechanical reasoning practice in the Bennett Mechanical Comprehension / ASVAB style — levers and moments, pulleys and mechanical advantage, gears and wheels, forces and equilibrium, the simple machines (inclined plane, wedge, screw), fluids and pressure, and everyday tools. Difficulty scales from spotting which setup is easier to multi-step machine reasoning, with a teaching explanation after every answer. Aligned to the ASVAB Mechanical Comprehension, the Bennett test, and trade/technical aptitude exams.
• Meets you at your level — never too easy, never too hard.
• Adapts every question to how you’re doing.
• Tracks your level over time. Skill practice, not a test.

New here? Read the Mechanical Reasoning guide

A free 14-minute primer — the mental model, the mistakes beginners make, and what to practice first.

Curriculum

184 concepts across 28 chapters, from foundations through advanced practice — each one a concept the adaptive question bank can teach and test.

A. Forces, vectors, and units

7

B. Newton's laws of motion

6

C. Free-body diagrams and equilibrium

7

D. Torque and moments

7

E. Center of gravity and stability

6

F. Levers

7

G. Pulleys and block-and-tackle

6

H. Wheel and axle, windlass, and capstan

6

I. Gears and gear trains

7

J. Belt, chain, and cable drives

6

K. Inclined plane, wedge, and screw

6

L. Linkages, cams, and cranks

6

M. Friction

7

N. Work, energy, and power

7

O. Momentum, impulse, and collisions

6

P. Rotation, inertia, and angular momentum

7

Q. Springs, elasticity, and material behavior

7

R. Structures: beams, columns, and trusses

7

S. Fluids at rest: pressure and hydrostatics

6

T. Hydraulics and Pascal's principle

6

U. Buoyancy and flotation

6

V. Fluids in motion

7

W. Pumps, fans, and compressors

8

X. Heat, expansion, and heat engines

7

Y. Power transmission and drivetrains

6

Z. Rotating machinery: balance, bearings, and vibration

6

AA. Hand tools and shop mechanics

7

AB. Machine safety, failure, and reading a mechanism

7
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Mechanical Reasoning on exams

Mechanical Reasoning is one of the skills tested on these exams. Each prep page lays out what the real test covers and where this skill fits.
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