Afleveringen
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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 leak rate thresholds that trigger mandatory periodic inspections for different appliance types.
- How to distinguish between the quarterly and annual inspection schedules for commercial, IPR, and comfort cooling equipment.
- The critical role of the 50-pound and 500-pound charge sizes in determining inspection frequency.
- How a continuously monitored automatic leak detection system can eliminate the need for manual periodic inspections.
- The 3-year recordkeeping requirement for all leak inspections and the owner's responsibility for maintaining these records.
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 50-pound charge threshold that triggers mandatory EPA 608 leak repair requirements for ozone-depleting substances.
- The specific annual leak rate thresholds for comfort cooling (10%), commercial refrigeration (20%), and industrial process refrigeration (30%).
- That owners have 30 days to complete repairs once a leak rate threshold is exceeded, including verification tests.
- The crucial difference between being exempt from mandatory repair (under 50 lbs) and the universal illegality of venting refrigerant.
- About the major rule change effective January 1, 2026, which lowers the threshold to 15 pounds for HFC refrigerants under the AIM Act.
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 -
Zijn er afleveringen die ontbreken?
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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:
- Before opening any high-pressure refrigerant system for service or disposal, you must recover the refrigerant until the pressure reaches a minimum of 0 psig.
- Intentionally venting refrigerant is a federal crime under Section 608 of the Clean Air Act; never cut a charged line.
- Understand the critical difference between 0 psig (atmospheric pressure) and a deep vacuum; the exam will test this distinction as a common trap.
- For small appliances using system-dependent recovery, you must recover 90% of the charge (working compressor) or 80% (inoperative compressor), and may need to apply heat to reach the target.
- Proper documentation of refrigerant recovery is required for appliance disposal, and new recovery cylinders must be evacuated before their first use.
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:
- System-dependent (passive) recovery uses the appliance's own compressor and is only for small appliances (15 lbs or less).
- Self-contained (active) recovery has its own compressor and can be used on any size system.
- For small appliances, recovery equipment must be able to capture 90% of the charge with a working compressor or 80% with a non-working one.
- A common exam trap is applying the 80%/90% recovery percentages to large systems, which instead require specific vacuum levels.
- An alternative to percentage-based recovery on small appliances is to pull a 4-inch mercury vacuum.
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 definition of refrigerant recovery as the simple removal and storage of refrigerant from a system.
- The critical "same-owner" rule for using recycled refrigerant and why it cannot be sold.
- How reclamation processes used refrigerant to meet virgin product purity under AHRI Standard 700.
- The exclusive role of an EPA-certified reclaimer in making used refrigerant legal for resale.
- How to distinguish between exam question scenarios involving recycling versus reclaiming based on ownership and purity standards.
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 Kigali Amendment targets high-GWP HFC refrigerants for their climate impact, not ozone depletion.
- The U.S. implements the HFC phase-down through the American Innovation and Manufacturing (AIM) Act of 2020.
- The national goal is a mandatory 85% reduction in HFC production and consumption by the year 2036.
- A common exam trap is confusing the purpose of the original Montreal Protocol (ozone) with the Kigali Amendment (global warming).
- The industry is shifting to low-GWP alternatives like HFOs (e.g., R-1234yf), CO2, and hydrocarbons.
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 Ozone Depletion Potential (ODP) is measured against the baseline refrigerant R-11 and is driven by chlorine content.
- How Global Warming Potential (GWP) is measured against Carbon Dioxide over 100 years and can be thousands of times higher for common HFC refrigerants.
- The critical exam trap of confusing zero ODP with being environmentally safe, while ignoring a refrigerant's high GWP.
- The specific ODP and GWP values for key refrigerants tested on the exam, including R-22, R-134a, R-410A, and R-1234yf.
- A simple mnemonic to separate ODP (Ozone/Chlorine) from GWP (Global/CO2) to quickly answer exam questions correctly.
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 key chemical difference (the presence of chlorine and hydrogen) that defines CFCs, HCFCs, and HFCs.
- Why CFCs have the highest Ozone Depletion Potential (ODP) and were phased out under the Montreal Protocol.
- The role of HCFCs like R-22 as transitional refrigerants and the importance of the January 1, 2020 production ban.
- The most common exam trap: Understanding that HFCs have zero ODP but a high Global Warming Potential (GWP), leading to their current phase-down under the AIM Act.
- A simple mnemonic to quickly recall the environmental impact of each refrigerant class during 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 direct link between the 1987 Montreal Protocol and the phasing out of ozone-depleting CFCs and HCFCs.
- How a single chlorine atom from refrigerants can destroy up to 100,000 ozone molecules in the stratosphere.
- The difference between Clean Air Act Section 608 (stationary equipment) and Section 609 (motor vehicle AC).
- A common exam trap: confusing the Montreal Protocol (ozone) with the Kyoto Protocol or Kigali Amendment (climate change).
- The mnemonic "Montreal Ozone" to remember the treaty's primary purpose 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:
- Type I certification is strictly for small appliances containing 5 pounds or less of refrigerant that are also hermetically sealed in a factory.
- Type II certification covers the most common high-pressure systems, like residential and commercial AC, with a heavy exam focus on leak repair trigger rates for systems over 50 lbs.
- Type III certification is for low-pressure appliances, such as centrifugal chillers, where the main exam topic is air and moisture leaking *into* the system because it operates in a vacuum.
- The rupture disc on a low-pressure chiller, a key Type III exam fact, is set to 15 psig to prevent system damage from over-pressurization.
- Universal certification is not a separate exam but is earned by passing all four individual sections: Core, Type I, Type II, and Type III.
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:
- Anyone who maintains, services, repairs, or disposes of appliances with regulated refrigerants (CFCs, HCFCs, HFCs) must hold an EPA 608 certification.
- An uncertified apprentice can only work under the direct, on-site supervision of a certified technician.
- The four certification types are Type I (small appliances ≤5 lbs), Type II (high-pressure), Type III (low-pressure), and Universal, with the Core exam being a prerequisite for all.
- A common exam trap involves distinguishing between the certified technician who purchases refrigerant and the supply house employee who only needs to verify the buyer's certification.
- Working without certification is a federal violation under the Clean Air Act with severe penalties, including fines that can exceed $37,500 per day per violation.
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:
- What Detect and Avoid (DAA) technology is and its foundational role in drone operations.
- Why DAA is a mandatory component for obtaining a Beyond Visual Line of Sight (BVLOS) waiver under Part 107.
- How the right-of-way rule in §107.37 always requires a drone to yield to manned aircraft, regardless of its DAA system.
- The most common exam trap: mistakenly believing that an advanced DAA system grants a drone the right-of-way.
- The functional pillars of a DAA system, from initial detection to returning to the original flight path.
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:
- Standard Remote ID is built into a drone and broadcasts the control station's live, dynamic location.
- A Remote ID Broadcast Module is an add-on for older drones that only broadcasts the initial take-off location.
- A common FAA Part 107 exam trap involves scenarios where the pilot moves after takeoff; you must know which location (control station vs. takeoff) is being broadcast.
- The mnemonic "Standard Sends the Station, Module Marks the Memory" helps differentiate the two systems.
- Flying exclusively within an FAA-Recognized Identification Area (FRIA) is the primary exception to the Remote ID rule.
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 autokinetic effect is when a stationary light appears to move; mitigate it by continuously scanning the sky and not fixating on the light.
- Recognize night illusions like the false horizon, where sloping clouds or ground lights are mistaken for the actual horizon, leading to disorientation.
- Optimal dark adaptation for night vision takes approximately 30 minutes, a key testable fact on the FAA Part 107 exam.
- Preserve night vision by using a red flashlight and avoiding bright white lights from phones or other sources before and during a flight.
- Physiological factors like age, fatigue, smoking, and altitude can significantly impair your night vision capabilities.
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:
- Anti-collision lights are mandatory for all drone operations during civil twilight and at night, as per 14 CFR Part 107.29.
- The lights must be visible for a minimum of 3 statute miles, a specific number frequently tested on the exam.
- The required flash rate is defined by its purpose—being sufficient to avoid a collision—not by a specific number of flashes per minute.
- A common exam trap is to confuse the single required anti-collision light with the red, green, and white navigation lights used on manned aircraft.
- The Remote Pilot in Command has the authority to reduce the light's intensity for safety, such as preserving night vision, but cannot turn it off completely during the operation.
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 FAA-approved method for systematically scanning the sky in 10-degree segments.
- How empty field myopia creates a hazard by causing your eyes to lose focus at a distance.
- The different roles of central and peripheral vision in detecting and identifying air traffic.
- The correct technique of looking slightly off-center to spot objects in low-light conditions.
- Why sunglasses can reduce contrast and which lens color is recommended for pilots.
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:
- Why hypoxia symptoms are tested on the Part 107 exam, even though drone pilots operate from the ground.
- How to differentiate between the nearly identical symptoms of hypoxia and hyperventilation, a common exam trap.
- That the FAA equates the impact of acute fatigue on judgment and reaction time to that of alcohol impairment.
- How stress can cause attentional narrowing, or 'tunnel vision,' leading a pilot to miss critical hazards.
- That even mild dehydration, as little as 1.5% body water loss, can significantly degrade a pilot's cognitive performance.
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:
- A flyaway is an unresponsive drone; the first action is to switch to ATTI mode to attempt to regain manual control.
- A lost link is a communication failure where the drone should follow its pre-set Return-to-Home (RTH) procedure.
- Never use water on a LiPo battery fire; the correct response is a Class D extinguisher or smothering it with sand.
- Pre-flight planning is critical, including setting a safe RTH altitude to clear all potential obstacles.
- Exam questions often create scenarios to test if you can distinguish between a flyaway and a lost link and choose the appropriate response.
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:
- A "lost link" is the loss of the command-and-control signal, and your pre-programmed failsafe setting determines the drone's action.
- The three common failsafe options are Return-to-Home (RTH), hover, and land-in-place.
- Your Return-to-Home (RTH) altitude must always be set higher than the tallest obstacle in your flight operation area.
- The Remote Pilot in Command (PIC) is ultimately responsible for the outcome of a lost link event, even if automated procedures are active.
- A lost link that results in serious injury or property damage over $500 may require an accident report to the FAA within 10 days under Part 107.9.
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:
- Why a small unmanned aircraft must always yield right-of-way to all other aircraft under FAA Part 107.37.
- The absolute responsibility of the Remote Pilot in Command to 'see and avoid' manned aircraft.
- Correct procedures for handling a converging course with another aircraft during an exam scenario.
- Common exam traps involving scenarios where manned aircraft appear to be operating unusually.
- A memorable phrase to ensure you always remember to yield and take evasive action.
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 - Laat meer zien
