Trades Exam Prep

5 Episodes
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By: Ran Chen, EA, CFP®

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 is made by Ran Chen, who holds an EA license, Insurance and Secu...

FAA Part 107 Drone Exam Prep 5, Visual Line of Sight and Visual Observers
Today at 9:13 AM

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: - VLOS must be maintained by the remote PIC using only natural vision, though corrective lenses are allowed. - Binoculars are prohibited for the primary purpose of maintaining Visual Line of Sight under §107.31. - A Visual Observer (VO) is mandatory when the remote PIC uses FPV goggles that obstruct their direct view of...


FAA Part 107 Drone Exam Prep 4, Maximum Altitude — The 400 Foot Rule
Yesterday at 9:13 AM

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 default maximum altitude for drone operations is 400 feet Above Ground Level (AGL), not Mean Sea Level (MSL). - How the FAA Part 107 exam uses MSL elevations on sectional charts as a common trap to confuse test-takers. - The structure exception in §107.51 allows flight up to 400 feet above a structure's highest po...


FAA Part 107 Drone Exam Prep 3, Recurrent Training Every 24 Months
Last Friday at 9:13 AM

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: - Recurrent training is required every 24 calendar months, as mandated by 14 CFR §107.65. - The deadline for completion is the end of the 24th calendar month, not the specific anniversary date of your initial test. - Your Part 107 certificate itself does not expire, but your legal authority to fly lapses if your training is...


FAA Part 107 Drone Exam Prep 2, Eligibility and the Aeronautical Knowledge Test
Last Thursday at 9:13 AM

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 four key eligibility requirements for a Part 107 certificate: age, language, fitness, and passing the exam. - The specific structure of the UAG knowledge test: 60 questions, 2 hours, and a 70% passing score. - How to calculate the exact number of correct answers needed to pass the exam, which is 42. - The correct s...


FAA Part 107 Drone Exam Prep 1, Who Needs a Remote Pilot Certificate
04/26/2026

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 purpose of a drone flight, not direct payment, determines if a Part 107 certificate is required. - Any flight conducted 'in furtherance of a business,' such as for internal documentation, is considered a commercial operation. - Using drone footage for a monetized social media channel is a commercial activity g...