Biomedical Equipment Technician (BMET) CDC Set A Volume 3 Practice Exam

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• What is the primary risk associated with miscalibrated infusion pumps?
• Which stage of a DAC determines the reference voltage or current that appears at the output?
• What does PM stand for in the context of biomedical equipment maintenance?
• Which of the following is an example of a critical care device?
• The unit of electrical conductance is measured in?
• If the voltage across the load is 20 volts and the current is 4 amperes, what is the power delivered to the load in watts?
• If a transformer has a turns ratio of 3:1 and a primary voltage of 120 volts, what will be the secondary voltage?
• What is the relationship between current, voltage, and resistance in a circuit?
• In differential mode, what does an operational amplifier (OP AMP) amplify?
• Which of the following configurations leads to maximum sensitivity in an OP AMP?
• In a circuit with a source voltage of 45 volts and a resistance of 5 ohms, what is the circuit's current in amperes?
• In what manner must a transistor be biased to conduct current flow?
• Which transistor configuration is known for providing the highest input impedance?
• What is used to ensure the credibility of your troubleshooting sequence?
• What is the minimum number of resistors needed to create a series-parallel circuit?
• What is the primary purpose of a closed loop operational amplifier (OP AMP) configuration?
• A capacitor has a capacitance of one farad (F) if it stores one coulomb of charge when connected across an electromotive force (EMF) of:
• What is the function of an electrosurgical unit?
• If both inputs are provided simultaneously to an RS latch flip-flop, what is the result?
• What is the total resistance of 10Ω, 20Ω, and 25Ω resistors connected in parallel?
• Why is it crucial to adhere to manufacturer specifications during equipment repair?
• What does "reprocessing" refer to in the context of medical devices?
• What are the three important features of numbering systems?
• In a series circuit with resistors R1, R2, and R3 each rated at 20 ohms and an applied voltage of 180 volts, what is the current in amperes through R2?
• What is the primary responsibility of a Biomedical Equipment Technician (BMET)?
• A sine wave's peak is measured at 30 volts. What is its peak-to-peak value?
• What is the primary function of a Zener diode?
• What type of current does a DC motor utilize?
• Capacitance is the ability of an electrical circuit or device to:
• Which is a common sterilization method for medical instruments?
• Which type of biomedical device is often subject to rigorous testing before approval?
• What type of signal is typically output from a thermocouple?
• What is the term for when two coils are positioned close enough for their magnetic fields to interact?
• What type of information is typically included in a medical device's technical manual?
• Convert binary 0111 to its decimal equivalent.
• For positive logic, what is the minimum signal level necessary to activate an OR gate?
• What are the two basic types of optical coupled devices?
• What combination of both number and letter designation would be used to identify a diode and semiconductor device?
• When a silicon controlled rectifier's (SCR) anode and cathode are reversed biased, a trigger pulse applied on the gate will cause it to?
• What is the total conductance, measured in Siemens, of a circuit containing a 10Ω and a 20Ω resistor connected in parallel?
• What is the circuit resistance in ohms if the applied voltage is 48 volts and the current is 0.5 amperes?
• Where does the majority of current flow in a transistor with both the emitter-base and collector-base circuits connected?
• An open in a parallel branch causes a circuit's total resistance to what?
• In a simple capacitor, the plate area is two square inches, the dielectric material is air, and the distance between the plates is 0.01 inch (0.254 mm). To increase the capacitance, you should:
• Impedance spectroscopy is particularly useful in which field?
• What does a pulse oximeter measure?
• Which benefit does a properly managed preventive maintenance (PM) program provide?
• What is the basic unit of inductance?
• What is the main purpose of the Joint Commission in healthcare?
• Which characteristic is essential for items used as biological indicators?
• What does the term “in-service training” refer to?
• What type of circuit requires at least one closed loop to function correctly?
• What characteristic of the complementary metal-oxide-semiconductor (CMOS) makes it suitable for battery-powered equipment?
• What materials are preferred for BI testing to ensure effective sterilization?
• Which state describes a Wheatstone bridge that has equal voltages across the two branches?
• If an alternating current sine wave repeats itself 500 times in 1/5 of a second, what is its frequency in hertz (Hz)?
• Connecting capacitors in parallel causes the plate area to:
• Which of the following is an effect of mutual induction?
• When servicing a sterilizer, which component is critical to inspect for proper operation?
• The transistor amplifier with high input impedance, low output impedance, and current gain of less than one is the common?
• In a digital logic circuit, which voltage level pair appropriately represents negative logic?
• How often is preventive maintenance typically performed on critical medical equipment?
• The transistor amplifier with characteristics of low input impedance and high output impedance is the common?
• How frequently should medical lasers be inspected for safety?
• A series circuit consists of three resistors with voltage readings of 40V, 80V, and 100V. What is the total source voltage?
• Which type of flip-flop has the simplest form and is used to store one bit of data?
• What is the main function of a demultiplexer?
• Which imaging technique utilizes magnetic fields and radio waves for diagnostic purposes?
• When performing an electrical safety test, what aspect is crucial to assess?
• In a three-branch parallel circuit with resistors rated at 4Ω, 5Ω, and 6Ω, the current is highest through which resistor?
• The transistor amplifier configuration which produces a 180° out of phase output from the input signal is the common?
• Which agency enforces regulations on medical device manufacturing in the U.S.?
• What happens to the armature in a DC motor when resistance is added to the circuit?
• What is one key performance criterion for ultrasound transducers?
• What device takes multiple input signals and mixes them into a fewer number of outputs?
• Who does not establish the frequency of equipment preventive maintenance (PM)?
• The sum of the power absorbed by all loads in a voltage divider equals the?
• Which of the following is an example of work not being done?
• Total electrical energy expended in an electrical circuit can be defined as the product of which two factors?
• In which section of a transistor does the input signal typically control the output?
• What device protects a circuit from excessive current?
• Which type of safety device is commonly used for preventing electrical overload?
• What is the role of the Center for Devices and Radiological Health (CDRH)?
• What type of circuit connection is characterized by resistors arranged so that they provide only one path for current?
• Which operational amplifier configuration is typically used to isolate stages in a circuit?
• In which mode does an OP AMP exhibit its high stability characteristics?
• In a closed circuit, what must be true about the sum of voltages?
• What type of biological response is of risk when using implantable devices?
• How does increasing the turns ratio of a transformer affect the voltage?
• What groups of elements are doped into semiconductors to create impurities?
• Compute the total capacitance in microfarads (μF) of a series circuit containing two capacitors: 5 μF and 10 μF.
• What is the primary function of an alternating-current generator?
• What is the resistance level characteristic of a short circuit?
• What is the equivalent resistance of six 120-ohm resistors connected in parallel?
• What is the typical range of frequencies used in ultrasound imaging?
• In a voltage divider, the total resistance is represented by which element?
• What phenomenon is observed when the voltage drop across resistors in a series circuit is equal to the total source voltage?
• Which flip-flop is considered the main component in digital counters?
• What is the function of the clock signal in digital circuitry?
• Which of the following describes a key function of biomedical instrumentation?
• What does a circle (negation symbol) on the output of a gate represent in positive logic?
• Which component in ultrasound equipment is responsible for generating sound waves?
• If the current is 3 amperes and the resistance is 45 ohms, what is the applied voltage in volts?
• The output voltage of a digital-to-analog converter (DAC) can be as large as what?
• The resolution of an analog-to-digital converter (ADC) is based on what?
• What is the main purpose of service records in a biomedical context?
• Which component of a pressure sensor converts pressure to an electrical signal?
• What is typically checked during an equipment inventory audit?
• In what way should medical equipment be stored to prevent damage?
• What is the best practice for connecting medical equipment to avoid ground loops?
• What is an undesirable characteristic of a Zener diode?
• What is a common indicator of electrical equipment malfunction?
• Which type of biomedical equipment requires specialized handling due to radiation?
• Most voltage measurements used to check proper circuit operation in electronic equipment are taken with respect to which reference point?
• Why is it important to maintain accurate logs of equipment maintenance?
• In an up-counter, which flip-flop is incremented by one when a trigger is applied?
• In the field of metrology, what does the acronym "NIST" stand for?
• What is the power delivered to a circuit if the current is 2 amperes and the voltage is 10 volts?
• Which capacitor type is polarized?
• What does the acronym "ISO" stand for in the context of medical device standards?
• What type of electrical wave is primarily utilized in a standard EEG machine?
• Which three types of direct-current motors are fundamental?
• Collector current flow in a transistor is changed by varying the bias in the?
• The fractional and whole part of a number in the binary system are separated by the?
• The process of creating a magnetic field through current is termed?
• How is electrical power generally measured in circuits?
• What is the proper term for the network of inputs in a differential amplifier?
• Which semiconductor device requires an external trigger pulse for operation?
• Which factor is considered most critical when choosing a replacement part for biomedical equipment?
• How are photosensitive devices classified?
• What is the power delivered to the load if the current is 4 amperes and the load resistance is 4 ohms?
• What is the fundamental principle that allows a transformer to operate?
• What is the specific function of a Schmitt trigger?
• What type of documentation is crucial for tracking maintenance on medical devices?
• What tool is used to test the insulation integrity of electrical equipment?
• What is a key characteristic of an autotransformer?
• What advantage does the usage of test points provide?
• What feature do numbering systems use to denote the position of digits?
• Which regulatory body is responsible for overseeing medical device safety and effectiveness in the United States?
• Which regulatory standard is primarily concerned with electrical safety in medical devices?
• In the context of a DAC, what does the term "scaling" refer to?
• What could result from a defective battery in a medical device?
• What mechanical property is crucial for materials used in surgical instruments?
• What is the major distinguishing feature among the octal, decimal, and binary systems?
• Hexadecimal numbers are typically preceded by which symbol?
• An alternating-current generator converts which form of energy into electrical energy?
• What is the main advantage of preventive maintenance in biomedical equipment?
• What is the primary function of an autotransformer?
• During a functional inspection of a ventilator, which parameter is essential to evaluate?
• The term "common collector" in transistor configuration is synonymous with what other term?
• What principle does impedance spectroscopy rely on?
• The binary numbering system uses which base?
• Which device has two base leads?
• Which number represents the binary equivalent of octal 766?
• What is the primary function of a manometer in medical applications?
• What is the primary advantage of the hexadecimal number system over the binary system?
• What does the term "biohazard" refer to in the context of biomedical equipment?
• In a transformer with a turns ratio of 1:4 and primary voltage of 20 volts, what is the secondary voltage?
• What does "end-user training" entail?
• The total voltage applied to a voltage divider is equal to the?
• In a defibrillator, what is the purpose of the paddles or pads?
• What is the purpose of a multiplexer in digital circuits?
• What does "biomedical instrumentation" encompass?
• What type of analysis involves assessing the risks associated with using a medical device?
• What kind of power supply is commonly used in laboratory equipment?
• Which of the following is the most predominant general-purpose linear integrated circuit?
• Which factor directly affects the amount of current flowing in a circuit?
• What are flip-flops primarily used for in digital circuitry?
• What does a grounding wire do in medical equipment?
• To achieve a high output from an exclusive OR gate with more than two inputs, what is required?
• What ensures that timing signals are synchronized in digital circuitry?
• What occurs in a series direct-current (DC) motor when the load increases?
• Compute the total capacitance in microfarads (μF) of a parallel circuit containing two capacitors: 5 μF and 10 μF.
• Which voltage should a typical clinical equipment power supply provide?
• Which type of circuit allows for different voltage and current values from a single supply voltage?
• What electrical safety feature can help reduce the risk of electrocution in medical devices?
• In a reverse-biased PN junction diode, what happens to the holes and electrons at the junction?
• Which OP AMP configuration provides a voltage gain of 1?
• What is the purpose of calibration in biomedical equipment?
• What does the term "biocompatibility" refer to?
• What is the role of a biological indicator in sterilization?
• What component in a circuit is primarily responsible for limiting current flow?
• Which factor does not affect capacitance?
• What numbering system is primarily used by digital computers?
• Which type of shift register can operate in all serial and parallel input/output combinations?
• What is the most important step when troubleshooting equipment?
• What can increase the strength of the magnetic field from an electromagnet?
• What is the main function of a patient monitor in a clinical setting?
• What does "forward bias" indicate regarding voltage in semiconductors?
• Which section of the FDA regulations outlines medical device quality system requirements?
• What is the octal equivalent of binary 110011?
• What tool is typically used to measure electrical current?
• What troubleshooting step is eliminated if there is a visual indicator that has lit up?
• What are the two possible states of a Wheatstone bridge circuit?
• Which device measures blood pressure non-invasively?
• What voltage range is considered invalid by transistor-transistor logic (TTL)?
• Which value is considered the most important for a sine wave?
• Which amplifier configuration allows for voltage gain greater than one?
• Resistors are classified primarily by which two characteristics?
• What tool would a BMET use to measure electrical current?
• What is the decimal equivalent of binary 11001100?
• In a parallel circuit, if one branch opens, the current through that branch will?