FE Mechanical · Mechanical Design Analysis

FE Mechanical Design Analysis Practice Questions

Solve FE-style Mechanical Design Analysis questions and learn the reasoning behind each answer through interactive engineering cases.

Interactive problems•Reasoning explained•Solutions included

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E-060 · FE MECHANICAL Mechanical Design Analysis

The 30 kW Shaft That Needed 239 N·m of Torque

The shaft power was 30 kW at 1200 rpm. That meant about 239 N·m torque, not 30 N·m.

Power Transmission Torque Speed Intermediate 5–10 min

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PRACTICE SET

FE Mechanical Design Analysis Practice Questions

Choose a question and solve it before reading the final engineering verdict.

E-060Mechanical Design Analysis

The 30 kW Shaft That Needed 239 N·m of Torque

The shaft power was 30 kW at 1200 rpm. That meant about 239 N·m torque, not 30 N·m.

Power Transmission Torque Speed5–10 min

E-059Mechanical Design Analysis

The Thin-Wall Vessel That Saw 100 MPa Hoop Stress

At 2 MPa internal pressure, the vessel's hoop stress reached 100 MPa—twice the longitudinal stress.

Thin Wall Pressure Vessel Stress5–10 min

E-058Mechanical Design Analysis

The Spring That Deflected 25.6 mm Under 500 N

The spring force was 500 N, but the deflection depended strongly on wire diameter, coil diameter, and active coils.

Helical Compression Spring Rate5–10 min

E-057Mechanical Design Analysis

The 50 mm Shaft That Saw 81.5 MPa of Shear

The torque was only 2 kN·m, but the outer surface of the 50 mm shaft reached about 81.5 MPa shear stress.

Machine Element Torsional Stress5–10 min

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What should I practice in FE Mechanical Design Analysis?

Practice the calculations, assumptions, constraints, and failure modes that appear around this topic. Each question here is designed to test whether you can apply the concept when the obvious calculation is not the whole engineering decision.