EPA 608 Universal HVAC Practice Test

Answer choices

1. A. It cannot count toward Universal, for the affected environment.
2. B. It improves equipment efficiency, for the stated implementation and support requirements.
3. C. It lowers refrigerant cost, as proposed.
4. D. It simplifies maintenance work, for this scenario.

Wrong-answer review

• B. It improves equipment efficiency, for the stated implementation and support requirements.: Equipment efficiency has no bearing on whether a Core test counts toward Universal Certification.
• C. It lowers refrigerant cost, as proposed.: Refrigerant cost is unrelated to the Core test format required for Universal Certification.
• D. It simplifies maintenance work, for this scenario.: Maintenance convenience does not satisfy EPA certification testing requirements.

Answer choices

1. A. It always improves efficiency, for the required outcome.
2. B. It is always less expensive, under the described core criteria.
3. C. It may need system changes, for the stated implementation and support requirements.
4. D. It is universally EPA-approved, in practice.

Answer choices

1. A. Low-pressure appliances under Type III, under the proposed approach.
2. B. High-pressure appliances, excluding small appliances and MVACs
3. C. Mobile air-conditioning systems under Section 609, as the organization’s selected response.
4. D. Small appliances under Type I, within the described operational context.

Answer choices

1. A. Reprocess recovered refrigerant to AHRI Standard 700-2016 purity and verify that purity
2. B. Remove contaminants from recovered refrigerant without restoring purity, as the proposed core approach.
3. C. Compress recovered refrigerant to a liquid state for easier handling, under the stated technical, operational, and governance constraints.
4. D. Purge refrigerant from an appliance to prepare it for disposal, under organization-wide implementation-governance requirements.

Answer choices

1. A. Ensure the vacuum pump is operating at maximum RPM, for the required outcome.
2. B. Verify the refrigerant type matches the recovery machine settings, within the type ii context.
3. C. Check for leaks in the system before initiating recovery, as presented.
4. D. Recover liquid at the beginning of the recovery process, under the documented operational and governance requirements.

Answer choices

1. A. The system is properly evacuated and ready for refrigerant, as the organization’s selected response.
2. B. Excessive purging can indicate leakage into the low-pressure system
3. C. The compressor is experiencing mechanical failure, under the proposed approach.
4. D. The expansion valve is malfunctioning, as the selected response to the described condition.

Answer choices

1. A. A factory-charged, hermetically sealed appliance with five pounds or less of refrigerant
2. B. An appliance containing more than 50 pounds of refrigerant, within organization-wide risk-and-accountability boundaries.
3. C. A device that is field-assembled and charged with refrigerant, for the stated security, delivery, and accountability requirements.
4. D. Any appliance used in a commercial refrigeration setting, as the recommended implementation across the complete governed service lifecycle.

Answer choices

1. A. Oil viscosity decreases with pressure reduction, improving flow, as the proposed design for the complete governed operational workflow.
2. B. Pressure reduction allows for easier oil separation from refrigerant, in the described situation.
3. C. Oil can contain dissolved refrigerant that must be recovered before an oil change, within this context.
4. D. Oil pressure maintains refrigerant solubility, preventing contamination, for the described technical objective and its associated operational control requirements, when applied.

Answer choices

1. A. To a local landfill for proper disposal, within the defined security and accountability boundaries.
2. B. To a customer for reuse in another system, within the described operational context.
3. C. To a consolidator for preparation or directly to an EPA-certified reclaimer
4. D. To a scrap metal dealer for recycling, for the stated security, delivery, and accountability requirements.

Answer choices

1. A. The entire appliance is considered a single refrigerant circuit, as presented.
2. B. Each independent circuit is treated as a separate appliance, within the defined security and accountability boundaries.
3. C. Only the largest circuit is reported for refrigerant recovery, as the proposed type i approach.
4. D. Circuits are combined and reported as a total system charge, under the proposed approach.