Breath Alcohol Technician Equipment Calibration & Maintenance Flashcards

Which type of breath alcohol testing device is approved for use in DOT workplace testing programs to confirm positive screening results?

Answer: Only an Evidential Breath Testing (EBT) device listed on NHTSA's CPL

Only EBTs on NHTSA's Conforming Products List may be used for DOT confirmation tests in workplace programs.

When a BAT opens a new cylinder of compressed dry gas standard, what must be verified before using it for calibration?

Answer: That the lot number, certified concentration, and expiration date are documented

Before use, the BAT must verify and document the lot number, certified alcohol concentration, and expiration date to ensure traceability and accuracy.

An EBT fails a calibration check. The BAT completes two more checks; both fail as well. What is the correct next step?

Answer: Remove the device from service and arrange for inspection and repair

After consecutive failed calibration checks, the EBT must be removed from service for inspection and repair before any further testing.

What is the significance of the serial number on an EBT during calibration documentation?

Answer: It uniquely identifies the specific device, ensuring calibration records are linked to that unit

The serial number uniquely identifies each EBT so that calibration records are traceable to the exact device used for employee testing.

Under DOT Part 40, what is the maximum allowable difference between a confirmation test result and a screening test result before the confirmation is considered valid?

Answer: There is no comparison requirement — the confirmation result stands alone

DOT Part 40 treats the confirmation test result as the final result without requiring it to match the screening result within any specific margin.

How should a BAT store an open cylinder of dry gas standard to maintain its integrity?

Answer: At room temperature away from direct sunlight, per manufacturer instructions

Dry gas cylinders should be stored at room temperature and away from direct sunlight and heat sources as specified by the manufacturer to preserve concentration accuracy.

Which of the following would NOT be a reason to remove an EBT from service?

Answer: The device's printer runs out of paper during a test

Running out of printer paper is an operational inconvenience but is resolved by reloading paper; it does not indicate a device malfunction requiring removal from service.