Shows / Trades Exam Prep
Trades Exam Prep
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…
Episodes
- Trades Exam Prep
NATE HVAC Exam Prep 12, Series and Parallel HVAC Circuits
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…
- Trades Exam Prep
NATE HVAC Exam Prep 11, Voltage Current Resistance and Power
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…
- Trades Exam Prep
NATE HVAC Exam Prep 10, HVAC Fundamentals Calculations and Exam Traps
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…
- Trades Exam Prep
NATE HVAC Exam Prep 9, Combustion Venting and Carbon Monoxide Safety
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…
- Trades Exam Prep
NATE HVAC Exam Prep 8, Refrigerant Piping Oil Return and Line Protection
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…
- Trades Exam Prep
NATE HVAC Exam Prep 7, Superheat and Subcooling Fundamentals
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…
- Trades Exam Prep
NATE HVAC Exam Prep 6, Pressure Temperature Relationships and Saturation
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…
- Trades Exam Prep
NATE HVAC Exam Prep 5, The Refrigeration Cycle and Component Roles
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…
- Trades Exam Prep
NATE HVAC Exam Prep 4, Heat Transfer BTUs and System Capacity
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…
- Trades Exam Prep
NATE HVAC Exam Prep 3, HVAC Tools and Measurement Accuracy
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…
- Trades Exam Prep
NATE HVAC Exam Prep 2, Jobsite Safety PPE and Hazard Control
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…
- Trades Exam Prep
NATE HVAC Exam Prep 1, Understanding the CHP-5 Certification Path
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…
- Trades Exam Prep
EPA 608 Prep 40, Exam Day Strategy — Common Traps and High-Yield Topics
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…
- Trades Exam Prep
EPA 608 Prep 39, Oil Recovery and Acid Tests — Compressor Health
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…
- Trades Exam Prep
EPA 608 Prep 38, Brazing and System Opening — Recover First, Always
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…
- Trades Exam Prep
EPA 608 Prep 37, Evacuation and Deep Vacuum — Microns and Moisture Removal
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…
- Trades Exam Prep
EPA 608 Prep 36, The R-22 Phaseout and the AIM Act HFC Phase-Down
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…
- Trades Exam Prep
EPA 608 Prep 35, Refrigerant Safety — Asphyxiation, Frostbite, and Toxic Decomposition
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…
- Trades Exam Prep
EPA 608 Prep 34, How the EPA 608 Exam Is Structured and Scored
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…
- Trades Exam Prep
EPA 608 Prep 33, Universal Certification — What It Covers and Scoring
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…
- Trades Exam Prep
EPA 608 Prep 32, Charging and Breaking the Vacuum on Low-Pressure Systems
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…
- Trades Exam Prep
EPA 608 Prep 31, Recovery of Low-Pressure Refrigerants — Recovery Units and Order
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…
- Trades Exam Prep
EPA 608 Prep 30, The Purge Unit — Removing Non-Condensables from Chillers
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…
- Trades Exam Prep
EPA 608 Prep 29, Operating in a Vacuum — How Low-Pressure Systems Pull in Air
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…
- Trades Exam Prep
EPA 608 Prep 28, Type III — Low-Pressure Refrigerants and Centrifugal Chillers
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…
- Trades Exam Prep
EPA 608 Prep 27, Recovery of High-Pressure Refrigerants — Methods and Targets
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…
- Trades Exam Prep
EPA 608 Prep 26, POE Oil and the Moisture Problem in R-410A Systems
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…
- Trades Exam Prep
EPA 608 Prep 25, Why R-410A Cannot Replace R-22 in Older Systems
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…
- Trades Exam Prep
EPA 608 Prep 24, Very High-Pressure Refrigerants — R-744 and Subcritical CO2
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…
- Trades Exam Prep
EPA 608 Prep 23, Type II — High-Pressure Refrigerants (R-22, R-410A, R-407C)
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…
- Trades Exam Prep
EPA 608 Prep 22, Small Appliance Refrigerants — R-134a, R-12, and Hydrocarbons
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…
- Trades Exam Prep
EPA 608 Prep 21, Heating Recovery Cylinders and Safe Warm-Up Methods
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…
- Trades Exam Prep
EPA 608 Prep 20, Recovery Cylinders and the 80 Percent Fill Rule
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…
- Trades Exam Prep
EPA 608 Prep 19, Self-Contained Recovery on Small Appliances — the 90% Standard
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…
- Trades Exam Prep
EPA 608 Prep 18, System-Dependent Recovery on Small Appliances — the 80% Standard
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…
- Trades Exam Prep
EPA 608 Prep 17, Type I Open-Book Exam and the Passing Scores
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…
- Trades Exam Prep
EPA 608 Prep 16, Type I — Small Appliances and the 5-Pound Limit
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…
- Trades Exam Prep
EPA 608 Prep 15, Reclaimers and EPA-Authorized Recycling
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…
- Trades Exam Prep
EPA 608 Prep 14, Refrigerant Sales Restrictions and the Penalty Bounty
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…
- Trades Exam Prep
EPA 608 Prep 13, Recordkeeping — What Technicians and Owners Must Document
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…
- Trades Exam Prep
EPA 608 Prep 12, Leak Detection Methods — Bubble, Electronic, Ultraviolet, Nitrogen
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…
- Trades Exam Prep
EPA 608 Prep 11, Periodic Leak Inspections — When and How Often
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…
- Trades Exam Prep
EPA 608 Prep 10, Leak Repair Requirements and the 50-Pound Threshold
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…
- Trades Exam Prep
EPA 608 Prep 9, Recover Before Opening — The 0 psi Rule
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…
- Trades Exam Prep
EPA 608 Prep 8, Refrigerant Recovery Equipment — System-Dependent vs Self-Contained
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…
- Trades Exam Prep
EPA 608 Prep 7, Recovery, Recycling, and Reclaim — Three Different Things
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…
- Trades Exam Prep
EPA 608 Prep 6, The Kigali Amendment and the HFC Phase-Down
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…
- Trades Exam Prep
EPA 608 Prep 5, Ozone Depletion Potential (ODP) and Global Warming Potential (GWP)
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…
- Trades Exam Prep
EPA 608 Prep 4, CFC, HCFC, and HFC Refrigerants — What's the Difference
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…
- Trades Exam Prep
EPA 608 Prep 3, The Montreal Protocol and the Ozone Layer
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…
- Trades Exam Prep
EPA 608 Prep 2, The Four Certification Types — Type I, II, III, and Universal
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…
- Trades Exam Prep
EPA 608 Prep 1, Who Needs a Section 608 Certification
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…
- Trades Exam Prep
FAA Part 107 Drone Exam Prep 50, Detect and Avoid (DAA) and BVLOS Foundations
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…
- Trades Exam Prep
FAA Part 107 Drone Exam Prep 49, Standard Remote ID vs Broadcast Modules
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…
- Trades Exam Prep
FAA Part 107 Drone Exam Prep 48, Night Vision Physiology — Autokinetic Effect and Illusions
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…
- Trades Exam Prep
FAA Part 107 Drone Exam Prep 47, Night Operations — Anti-Collision Lighting
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…
- Trades Exam Prep
FAA Part 107 Drone Exam Prep 46, Vision and Scanning Techniques
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…
- Trades Exam Prep
FAA Part 107 Drone Exam Prep 45, Physiology — Hypoxia, Fatigue, Stress, Dehydration
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…
- Trades Exam Prep
FAA Part 107 Drone Exam Prep 44, Emergency Procedures — Flyaways, Fire, Lost Link
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…
- Trades Exam Prep
FAA Part 107 Drone Exam Prep 43, Lost Link Procedures and Failsafe Settings
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…