Ran Chen, EA, CFP®

Trades Exam Prep

Education EN ↓ 52 episodes

Trades Exam Prep is a free, daily podcast by OpenExamPrep covering the most in-demand skilled trades licensing and certification exams — including EPA 608 (HVAC refrigerant), FAA Part 107 (drone), Master Electrician, Plumber, General Contractor, ASE automotive, NATE, OSHA 10/30, Welder Certification, and more. Each 5-minute episode breaks down one exam topic with concrete examples, common exam traps, code references, and field-ready memory tricks to help you pass on your first attempt. No fluff, no filler — just the concepts you need to know, explained the way the exam tests them. This podcast...

Author

Ran Chen, EA, CFP®

Episodes

EPA 608 Prep 2, The Four Certification Types — Type I, II, III, and Universal 11.07.2026 3:52

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: - Type I certification is strictly for small appliances containi...

EPA 608 Prep 1, Who Needs a Section 608 Certification 10.07.2026 3:03

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: - Anyone who maintains, services, repairs, or disposes of applia...

FAA Part 107 Drone Exam Prep 50, Detect and Avoid (DAA) and BVLOS Foundations 17.06.2026 3:12

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: - What Detect and Avoid (DAA) technology is and its foundational...

FAA Part 107 Drone Exam Prep 49, Standard Remote ID vs Broadcast Modules 16.06.2026 2:55

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: - Standard Remote ID is built into a drone and broadcasts the co...

FAA Part 107 Drone Exam Prep 48, Night Vision Physiology — Autokinetic Effect and Illusions 15.06.2026 2:57

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 autokinetic effect is when a stationary light appears to m...

FAA Part 107 Drone Exam Prep 47, Night Operations — Anti-Collision Lighting 14.06.2026 3:46

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: - Anti-collision lights are mandatory for all drone operations d...

FAA Part 107 Drone Exam Prep 46, Vision and Scanning Techniques 13.06.2026 3:21

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 FAA-approved method for systematically scanning the sky in...

FAA Part 107 Drone Exam Prep 45, Physiology — Hypoxia, Fatigue, Stress, Dehydration 12.06.2026 3:49

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: - Why hypoxia symptoms are tested on the Part 107 exam, even tho...

FAA Part 107 Drone Exam Prep 44, Emergency Procedures — Flyaways, Fire, Lost Link 11.06.2026 3:18

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: - A flyaway is an unresponsive drone; the first action is to swi...

FAA Part 107 Drone Exam Prep 43, Lost Link Procedures and Failsafe Settings 10.06.2026 3:11

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: - A "lost link" is the loss of the command-and-control signal, a...

FAA Part 107 Drone Exam Prep 42, Right of Way Rules — Yielding to Manned Aircraft 09.06.2026 2:44

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: - Why a small unmanned aircraft must always yield right-of-way t...

FAA Part 107 Drone Exam Prep 41, Crew Resource Management for Drones 08.06.2026 4:11

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: - That Crew Resource Management (CRM) applies even to solo pilot...

FAA Part 107 Drone Exam Prep 40, IMSAFE Personal Pre-Flight Checklist 07.06.2026 3:51

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 specific meaning of each letter in the IMSAFE checklist: I...

FAA Part 107 Drone Exam Prep 39, PAVE Checklist for Risk Management 06.06.2026 2:59

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 PAVE checklist (Pilot, Aircraft, enVironment, External Pre...

FAA Part 107 Drone Exam Prep 38, The Five Hazardous Attitudes and Antidotes 05.06.2026 3:02

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 identify the five hazardous attitudes: Anti-Authority, Impu...

FAA Part 107 Drone Exam Prep 37, Aeronautical Decision Making — DECIDE Model 04.06.2026 3:41

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 DECIDE model is a six-step framework for systematic Aerona...

FAA Part 107 Drone Exam Prep 36, Load Factor and Performance Limits 03.06.2026 3:00

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: - Load factor is the G-force stress on a drone's airframe during...

FAA Part 107 Drone Exam Prep 35, Battery Management and Flight Time 02.06.2026 4:02

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 cold weather below 50°F dramatically reduces LiPo battery...

FAA Part 107 Drone Exam Prep 34, Effects of Exceeding Maximum Weight 01.06.2026 3:22

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 absolute, non-waivable maximum takeoff weight for a small...

FAA Part 107 Drone Exam Prep 33, Center of Gravity and Why It Matters 31.05.2026 3:44

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 definition of Center of Gravity (CG) and its role as the a...

FAA Part 107 Drone Exam Prep 32, Microbursts, Wind Shear, Fog, and Icing 30.05.2026 4:46

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 identify a microburst by its intense, localized downdra...

FAA Part 107 Drone Exam Prep 31, Density Altitude and Drone Performance 29.05.2026 3:05

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: - What density altitude truly means: it's the altitude your dron...

FAA Part 107 Drone Exam Prep 30, Visibility, Cloud Clearance, and the 3 SM / 500 ft Rule 28.05.2026 3:18

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 absolute minimum weather requirements for Part 107 operati...

FAA Part 107 Drone Exam Prep 29, Decoding TAFs 27.05.2026 4:04

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 correctly interpret a TAF's valid time period (e.g., 12...

FAA Part 107 Drone Exam Prep 28, Decoding METARs 26.05.2026 3:05

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: - That wind direction in a METAR is always reported in True Nort...