Practice Test GeeksCBET - Certified Biomedical Equipment Technician Practice Test
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General Practice Flashcards

7 cards from real CBET practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 General Practice flashcards as text

  1. When using a multimeter to measure AC voltage on a 120V circuit, the technician should set the range to:

    Answer: A range equal to or above 120V to prevent meter damage

    Always select a range at or above the expected voltage to prevent damage to the meter and ensure safe, accurate measurement.

  2. A hospital laboratory centrifuge vibrates excessively during operation. The MOST likely cause is:

    Answer: An unbalanced load due to improperly paired or misplaced samples

    Centrifuges must have balanced loads; unequal or improperly positioned samples create centrifugal force imbalance causing severe vibration.

  3. Which type of radiation is MOST effectively stopped by a thin sheet of aluminum foil?

    Answer: Beta particles

    Beta particles (electrons) have moderate penetration and are effectively shielded by a few millimeters of aluminum, unlike alpha (paper stops it) or gamma (requires dense shielding).

  4. A technician completing a work order should document which of the following to satisfy Joint Commission traceability requirements?

    Answer: Device identification, service performed, test results, technician ID, and date

    Joint Commission requires complete service records including device ID, work performed, test results, technician identification, and the service date for full traceability.

  5. The output impedance of a device should ideally be low because:

    Answer: It minimizes signal voltage drop when driving a load

    Low output impedance ensures minimal voltage drop across the source impedance when current flows, maintaining signal integrity to the load.

  6. Which sterilization method is MOST appropriate for heat-sensitive flexible endoscopes?

    Answer: Ethylene oxide (EtO) gas sterilization

    Ethylene oxide gas sterilizes at low temperatures (37–63°C), making it suitable for heat-sensitive devices like flexible endoscopes that would be damaged by steam or dry heat.

  7. In an op-amp configured as an inverting amplifier with Rf = 100 kΩ and Rin = 10 kΩ, the voltage gain is:

    Answer: -10

    The inverting amplifier gain is -Rf/Rin = -100kΩ/10kΩ = -10, where the negative sign indicates phase inversion.