Who is correct about the use of the BAR-97 EIS for heavy-duty vehicles?

Who is correct about the use of the BAR-97 EIS for heavy-duty vehicles?

• A. Technician A.
• B. Technician B.
• C. Both Technicians A and B.
• D. Neither technician.

Answer: (B)

The BAR-97 EIS is not a universal tool for all heavy‑duty vehicles; its use is limited to specific vehicle types and test conditions. Technician B is correct because the BAR-97 EIS must be used only in the approved scenarios for heavy‑duty testing—when the vehicle and test setup match what the procedure allows. Using it outside those approved conditions would produce invalid results. The other technician likely suggested broader applicability, which would misstate the instrument’s limits.

The BAR-97 EIS is not a universal tool for all heavy‑duty vehicles; its use is limited to specific vehicle types and test conditions. Technician B is correct because the BAR-97 EIS must be used only in the approved scenarios for heavy‑duty testing—when the vehicle and test setup match what the procedure allows. Using it outside those approved conditions would produce invalid results. The other technician likely suggested broader applicability, which would misstate the instrument’s limits.