This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.

In this episode you will learn:

- How to apply the Stopping Sight Distance (SSD) formula from the NCEES FE Reference Handbook.

- The critical sign convention for positive (uphill) and negative (downhill) grades in SSD calculations.

- The purpose of superelevation in horizontal curve design and how to use the point-mass formula.

- How to balance superelevation (e) and side friction (f) based on design speed and curve radius.

- A simple mnemonic, "Uphill is a plus," to remember the grade sign convention for SSD.

For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep

This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.

In this episode you will learn:

- How to differentiate between at-rest (K_0), active (K_a), and passive (K_p) lateral earth pressures and select the correct formula.

- A mnemonic to remember that active pressure (wall moves Away) is smaller than passive pressure (wall Pushes).

- How to apply Terzaghi's ultimate bearing capacity equation and find the N-factors in the NCEES Handbook.

- The most common exam trap for bearing capacity calculations: inconsistent units for soil weight and footing dimensions.

- Why slope stability questions on the FE exam focus on the conceptual Factor of Safety rather than complex calculations.

For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep

This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.

In this episode you will learn:

- How to apply the Mohr-Coulomb failure criterion for different soil types on the FE Civil exam.

- The critical difference between drained (effective stress) and undrained (total stress) analysis for clays.

- Why the friction angle is considered zero in an undrained analysis of saturated clay.

- How to determine undrained shear strength (c_u) from an unconfined compression test result (q_u).

- How triaxial test results (σ₁ and σ₃) are used to find the shear strength parameters c and φ.

For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep

This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.

In this episode you will learn:

- How to calculate the total primary consolidation settlement using the Compression Index (Cc) formula.

- The critical importance of correctly calculating initial and final effective vertical stresses at the clay layer's midpoint.

- How to use the time factor (Tv) equation to determine how long it will take to reach a certain percentage of consolidation.

- The most common exam trap: identifying one-way versus two-way drainage to find the correct drainage path length (H_dr).

- Key benchmark values for the time factor, such as Tv = 0.197 for 50% consolidation, which frequently appear on the exam.

For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep

This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.

In this episode you will learn:

- The fundamental effective stress equation is: Effective Stress (σ') = Total Stress (σ) - Pore Water Pressure (u).

- Total stress represents the weight of all materials (soil and water) above a point, calculated by summing the unit weight times the thickness for each layer.

- Pore water pressure is the pressure from the column of water above a point and is only non-zero below the water table.

- A soil's strength and consolidation behavior are governed by effective stress, which is the stress transferred between soil particles, not by total stress.

- A common exam trap is capillary rise, where water is drawn above the water table, creating negative pore pressure (suction) and increasing the effective stress.

For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep

This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.

In this episode you will learn:

- How to apply Darcy's Law (q=kiA) to calculate the volumetric flow rate of water through a soil sample.

- The correct way to determine the hydraulic gradient (i = Δh/L) and avoid common exam traps related to head loss and flow path length.

- How to use a flow net to calculate the total seepage under a structure using the formula Q = kH(Nf/Nd).

- To identify critical exam traps such as unit conversions for the coefficient of permeability (k) and correctly counting flow channels (Nf) and equipotential drops (Nd).

- The importance of using the cross-sectional area (A) that is perpendicular to the direction of flow in Darcy's Law.

For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep

This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.

In this episode you will learn:

- To differentiate Standard (ASTM D698) and Modified (ASTM D1557) Proctor tests by their compactive energy.

- How the compaction curve plots dry unit weight versus water content to find the maximum dry unit weight and optimum moisture content.

- The essential formula for converting total (moist) unit weight to dry unit weight: γ_d = γ_t / (1 + w).

- That field compaction requirements are specified as a percentage of the maximum lab density (e.g., 95% of Standard Proctor).

- To watch for common exam traps that mix up Standard and Modified test data or confuse moist and dry unit weights.

For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep

This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.

In this episode you will learn:

- The three-phase soil diagram (solids, water, air) is the foundation for all geotechnical weight-volume problems on the FE Civil exam.

- How to master the critical difference between void ratio (e = Vv/Vs) and porosity (n = Vv/V_total), a common exam trap.

- Why the relationship Se = wGs is a powerful shortcut for solving for an unknown variable when three of the four properties are given.

- How to calculate the three primary unit weights: dry (γd), saturated (γsat), and moist (γ), and know which formulas from the NCEES handbook to apply.

- That the submerged unit weight (γ') is simply the saturated unit weight minus the unit weight of water, a key input for effective stress calculations.

For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep

This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.

In this episode you will learn:

- The critical first step in soil classification is determining if it's coarse or fine-grained based on the 50% rule for the No. 200 sieve.

- How to classify coarse-grained soils as gravel (G) or sand (S), and then as well-graded (W) or poorly-graded (P) using gradation data.

- How to use the Atterberg Limits (LL, PL, and PI) and the Plasticity Chart to classify fine-grained soils.

- The function of the A-line and the LL=50 line on the Plasticity Chart to distinguish between clays (C), silts (M), and their plasticity (L or H).

- Common exam traps, including soils with 5-12% fines that require dual symbols and how to classify soils that plot directly on the A-line.

For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep

This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.

In this episode you will learn:

- How to differentiate between one-way and two-way slabs using the long-to-short side ratio of 2.0.

- Why one-way slabs are analyzed as wide beams with load transfer occurring primarily in the short direction.

- The definition of development length (l_d) and its importance for achieving the rebar's full yield strength.

- How to identify and apply the critical 'top-bar' modification factor of 1.3 in development length calculations.

- The relationship between splice length and development length for Class A (1.0 * l_d) and Class B (1.3 * l_d) tension splices.

For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep