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PODCAST

Trades Exam Prep

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

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All Episodes

02:59

FAA Part 107 Drone Exam Prep 39, PAVE Checklist for...

Trades Exam Prep ·

2026/06/06

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 Pressures) is a foundational risk management tool for every drone flight. - The 'Pilot' assessment hinges

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03:02

FAA Part 107 Drone Exam Prep 38, The Five Hazardous...

Trades Exam Prep ·

2026/06/05

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: - To identify the five hazardous attitudes: Anti-Authority, Impulsivity, Invulnerability, Macho, and Resignation. - The specific antidote for each hazardous attitude

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03:41

FAA Part 107 Drone Exam Prep 37, Aeronautical...

Trades Exam Prep ·

2026/06/04

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: - The DECIDE model is a six-step framework for systematic Aeronautical Decision Making (ADM). - The steps are: Detect, Estimate, Choose, Identify, Do, and Evaluate. -

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03:00

FAA Part 107 Drone Exam Prep 36, Load Factor and...

Trades Exam Prep ·

2026/06/03

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: - Load factor is the G-force stress on a drone's airframe during maneuvers. - A 60-degree banked turn imposes a 2 G load factor, effectively doubling the drone's

en

04:02

FAA Part 107 Drone Exam Prep 35, Battery Management...

Trades Exam Prep ·

2026/06/02

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 performance and flight duration. - The importance of landing with a 20-30% battery reserve to handle

en

03:22

FAA Part 107 Drone Exam Prep 34, Effects of Exceeding...

Trades Exam Prep ·

2026/06/01

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 UAS under FAA Part 107 is less than 55 pounds. - How increased weight negatively impacts key

en

03:44

FAA Part 107 Drone Exam Prep 33, Center of Gravity...

Trades Exam Prep ·

2026/05/31

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 aircraft's balance point. - How a forward CG increases a drone's stability but decreases its

en

04:46

FAA Part 107 Drone Exam Prep 32, Microbursts, Wind...

Trades Exam Prep ·

2026/05/30

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 downdraft and why you must stay at least 20 nautical miles away from thunderstorms that could produce them. -

en

03:05

FAA Part 107 Drone Exam Prep 31, Density Altitude and...

Trades Exam Prep ·

2026/05/29

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 drone "feels" like it's at, not its actual height. - The three factors that increase density altitude and

en

03:18

FAA Part 107 Drone Exam Prep 30, Visibility, Cloud...

Trades Exam Prep ·

2026/05/28

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 operations: 3 statute miles of visibility, 500 feet below clouds, and 2,000 feet horizontally from clouds. -

en

04:04

FAA Part 107 Drone Exam Prep 29, Decoding TAFs

Trades Exam Prep ·

2026/05/27

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., 1212/1318) for flight planning. - The critical difference between a rapid change (FM) and a gradual

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03:05

FAA Part 107 Drone Exam Prep 28, Decoding METARs

Trades Exam Prep ·

2026/05/26

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 North, a common exam trap. - Cloud base heights are given in feet Above Ground Level (AGL), not Mean Sea

en

03:30

FAA Part 107 Drone Exam Prep 27, Weather Sources —...

Trades Exam Prep ·

2026/05/25

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 primary, FAA-approved sources for obtaining a legal weather briefing (1-800-WX-BRIEF, aviationweather.gov, 1800wxbrief.com). - Why common sources like TV

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03:19

FAA Part 107 Drone Exam Prep 26, CTAF Communication...

Trades Exam Prep ·

2026/05/24

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 locate the Common Traffic Advisory Frequency (CTAF) for a non-towered airport in the Chart Supplement or on a sectional chart. - That while not mandatory for Part

en

03:14

FAA Part 107 Drone Exam Prep 25, Airport Markings,...

Trades Exam Prep ·

2026/05/23

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 civilian (white/green) versus military (white/white/green) airport beacons. - The critical difference between a wind sock, which points downwind, and

en

04:02

FAA Part 107 Drone Exam Prep 24, Stadium TFRs, DC...

Trades Exam Prep ·

2026/05/22

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 prohibition of drone flights within the 15-nautical-mile Flight Restricted Zone (FRZ) of the Washington DC SFRA. - How to apply the '3-3-1-1' rule for

en

03:02

FAA Part 107 Drone Exam Prep 23, NOTAMs and TFRs

Trades Exam Prep ·

2026/05/21

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: - A NOTAM (Notice to Air Missions) is a time-critical advisory about hazards or changes in the National Airspace System. - A TFR (Temporary Flight Restriction) is a

en

03:29

FAA Part 107 Drone Exam Prep 22, Special Use Airspace...

Trades Exam Prep ·

2026/05/20

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 prohibition of flying in Prohibited Areas (P-) for Part 107 operators and why there are no exceptions. - How to determine if a Restricted Area (R-) is

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03:17

FAA Part 107 Drone Exam Prep 21, LAANC — Automatic...

Trades Exam Prep ·

2026/05/19

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 LAANC is and which specific types of controlled airspace it applies to (Class B, C, D, and surface E). - How UAS Facility Maps (UASFM) dictate the pre-approved

en

03:24

FAA Part 107 Drone Exam Prep 20, Latitude, Longitude,...

Trades Exam Prep ·

2026/05/18

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: - To differentiate latitude (flat, east-west lines measuring north-south) from longitude (long, north-south lines measuring east-west). - The method for reading

en

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