Electronic Technician (ET) Apprentice Technical Training (ATT) Comprehensive Practice Test

These questions are part of the practice quiz. Start practicing

• What is the primary function of a generator?
• What is retentivity in the context of magnetism?
• What components are used to create an LC oscillator?
• Which pole do flux lines begin from a magnet?
• What is electromagnetic interference (EMI)?
• In what scenario would you use a potentiometer?
• What is a Power Resistor commonly used for?
• What is the purpose of a diode in an electronic circuit?
• What does a continuity tester do?
• What is a characteristic of the common emitter configuration?
• What effect does increasing the base bias have on an NPN transistor?
• What is the role of resistors in a circuit?
• When using a multimeter, what is a crucial safety practice when measuring current?
• What is the effect of series resistance on current flow?
• What defines the fidelity of an amplifier?
• What is the role of the Zener diode?
• What does the protection component of a power supply do?
• Which of the following describes the output of the detector?
• What does every magnet possess?
• What does the Left Hand Rule help determine?
• At what current range does one experience faint tingling to a slight shock?
• In electronics, what does "biasing" refer to?
• What is the primary operation characteristic of a continuous motor?
• Which measurement is used for power in machinery?
• What does the AF amplifier do in an AM receiver?
• What phenomenon does capacitive reactance refer to?
• What characterizes sine oscillators?
• Frequency is measured in which unit?
• Which component is typically used to store electrical energy?
• What is the primary characteristic of a junction diode?
• Which component is typically used to prevent overcurrent in a circuit?
• How is power calculated in an electrical circuit?
• What is the role of a regulator in a power supply?
• What type of system structure is used for a power supply?
• Which electronic component is polarised and must be connected correctly in a circuit?
• What is the typical function of a potentiometer?
• What does "symbolism" in circuit diagrams refer to?
• What is an electromechanical relay?
• If there is a complete short in the secondary of a transformer, what will be the result?
• How can you determine if a capacitor is functioning correctly?
• In what type of circuit configuration do components share the same voltage?
• What is the first step in repairing digital systems?
• What does a logic gate do in digital electronics?
• What is the primary purpose of using ferrite beads in electronics?
• What is the result of performing maintenance on relay contacts with a burnishing tool?
• What occurs at the EB Junction of an NPN transistor during cutoff?
• What does the term "ground" refer to in electronic circuits?
• Which component is often associated with generating alternating current (AC)?
• What does a digital multimeter measure?
• What type of burn is caused by high temperatures near the body, often due to arcs or explosions?
• What does 'fault isolation' refer to in repairing digital systems?
• Which fault can make the operation of an integrated circuit unpredictable?
• What type of electronic component primarily regulates voltage?
• What is the efficiency and fidelity of a Class B amplifier?
• Which component is primarily used for signal filtering?
• What is an essential characteristic of an Operational Amplifier?
• How does a transformer increase voltage?
• What does "changing pulsating DC to smooth DC" refer to in power supply functions?
• What does the Law of Electrostatics state?
• What does a Schematic Diagram illustrate?
• What type of signal is used to represent digital data?
• Which instrument is commonly used to display waveform signals?
• What type of burn results from contact with high temperature surfaces?
• What is the primary purpose of an inductor in electrical circuits?
• What happens to secondary voltage if there is a partial short in the primary of a transformer?
• What are flux lines?
• In a schematic, in which direction do signals generally flow?
• What is the primary function of an amplifier circuit?
• What is the role of the RF amplifier in an AM receiver?
• Which components comprise the AF amplifier?
• How does an operational amplifier function?
• What is the purpose of a rectifier in a power supply?
• What happens to resistance when more resistors are added in series?
• Which of the following amplifiers can be used to create an Operational Amplifier?
• What type of signal does a rectifier convert?
• What method is typically used to determine the frequency in a crystal oscillator?
• What does the mixer in an AM receiver do?
• At what range does painful shock and shakiness of muscles occur?
• Which of the following best describes the function of a mechanical input in generators?
• What does a function generator do?
• What does PCB stand for in electronics?
• What does the "cutoff" point refer to in transistor operation?
• What is the primary function of the IF amplifier in an AM receiver?
• Which component of the tuner converts RF to IF?
• What do you call the phenomenon where materials retain magnetism?
• Why is the left-hand rule important for electricians?
• What aspect of Operational Amplifiers allows for versatility in circuit design?
• In electronics, what does the term "ground" refer to?
• What is the effect of limiting excess current flow in a power supply?
• Which of the following describes the purpose of a Differential Amplifier in an Operational Amplifier?
• Which component is used to amplify electrical signals?
• What is the required bias voltage for a silicon diode to conduct?
• What units are used to measure capacitance?
• What type of relay damage is characterized by coned and cratered contacts?
• According to Lenz's Law, the induced current in a conductor flows in a direction that:
• Where is the power supply typically located on a schematic diagram?
• What characterizes motors in electrical machinery?
• What is the primary function of a multimeter in electronic testing?
• What distinguishes an incremental motor?
• What is the primary difference between AC and DC?
• What does a telltale oil filter indicate when it changes color?
• What is the purpose of low-pass filters in the detector?
• Which type of oscillator uses resistors and capacitors to set its frequency?
• What level of current poses a significant chance of death due to heart flutters and severe muscle contractions?
• In electronic terms, what does “tolerance” refer to?
• What does a wire stripper do?
• What is the purpose of a resistor in a circuit?
• Which tool is primarily used for stripping insulation from wires?
• What does the load refer to in the context of rotating machinery?
• What type of circuit uses both AC and DC voltage?
• What is the primary function of an LC oscillator like the Hartley oscillator?
• What does AC stand for in electrical terms?
• What device is responsible for controlling the voltage in a circuit?
• What occurs at current levels of 2000 mA and above?
• What is the primary function of a Push-pull Amplifier in an Operational Amplifier setup?
• What is the correct sequence of components in a power supply pipeline?
• What is the unit of measure for electrical current?
• What should be done when a sealed relay is broken?
• Which characteristic of a Common Collector Amplifier is beneficial for use in Operational Amplifiers?
• In a step-up transformer, what is typically true about the turns ratio?
• What is the assumed amplification value (Av) for a common emitter configuration?
• What happens to fuses when they open due to excess current?
• What is the purpose of filtering in electronic circuits?
• What does the term "impedance" refer to in electrical circuits?
• What is the purpose of a burnishing tool?
• What is the main function of an inductor in an electronic circuit?
• What does permeability refer to in magnetism?
• In a circuit, what does the term "load" refer to?
• What is the role of a ground connection in an electrical system?
• What is the initial component in the AM receiver pipeline?
• What is a key feature of a digital incremental motor?
• What is a key function of a power supply's input system?
• In an Operational Amplifier, which parameter is most important for achieving high performance?
• What is a key feature of a common collector amplifier configuration?
• Which kind of signal is typically produced by an oscillator?
• What is the primary function of a magnetic circuit breaker?
• What is the most serious type of burn resulting from current flowing through tissue?
• Which electronic component is known for its non-linear characteristics?
• Operational Amplifiers primarily consist of which of the following amplifiers?
• What type of feedback is commonly used in Operational Amplifiers to stabilize gain?
• What does a push-pull amplifier mainly do?
• What are some common faults found in integrated circuits (IC)?
• What factor does the Common-mode Rejection Ratio primarily measure in an Operational Amplifier?
• What happens to the total resistance in a parallel circuit?
• Which instrument is used to measure inductance?
• What is "saturation" in the context of a transistor?
• What type of component is typically used in a detector for an AM receiver?
• What is the function of a resistor in a circuit?
• What purpose does a swamping resistor serve in a transistor amplifier?
• What signifies a good continuity reading in an electrical circuit?
• What principle does air-to-air cooling operate on?
• What does LED stand for?
• How is torque measured in rotating machinery?
• Which amplifier configuration would result in phase inversion of an input signal in an Operational Amplifier?
• What does a diode primarily do in a circuit?
• What range of current can cause extreme pain and difficulty in letting go?
• What does OSHA stand for?
• Which component allows signals to pass in one direction while blocking them in the opposite direction?
• What is the purpose of a heat sink in electronics?
• What happens when the current exceeds the rating of a fuse?
• What frequency does the Local Oscillator (LO) operate above the original RF signal in an AM receiver?
• What is the output of the mixer in terms of frequency variations?
• What type of amplifier is not a component of Operational Amplifiers?
• Which class of amplifier is characterized by high fidelity and low efficiency?
• Which amplifier class offers higher fidelity than Class B but lower efficiency?
• What is the primary function of a step-up transformer?
• What describes a Class C amplifier?
• What does the acronym RLC stand for in circuit design?
• What does tolerance measure in a resistor?
• Which best defines a stepper motor?
• What is the outcome when the primary of a transformer is open?
• How does temperature affect resistance in conductors?
• What is the relationship between torque and counterelectromotive force (CEMF)?
• What is primarily affected when a fuse opens?
• What is the primary purpose of an oscilloscope?
• What is Ohm's Law?
• Which of the following describes a non-magnetic material?
• What is the purpose of a capacitor in a power supply circuit?
• What is unique about the phase shift in the common base configuration?
• Which of the following best defines a capacitor?
• What is a common use for a transformer in power distribution?
• What type of motor is characterized by having both electrical input and mechanical output?
• In applications involving feedback, what type of amplifier configuration is most commonly utilized with Operational Amplifiers?
• What is the tolerance of a Precision Resistor?
• What does a relay do in an electronic circuit?
• Which type of diode allows current to flow in one direction only?
• How does a synchro motor position its shaft?
• What is the function of a fuse in an electronic circuit?
• What is the main role of a driver in audio amplification?
• What type of output does a motor provide?
• What is the primary function of power supplies?
• What do ferrous particles mean in reference to materials?
• What is the primary advantage of using a common collector configuration?
• Which of the following is a characteristic of an inductor?
• What is a rotating machinery?
• Which device converts electrical energy into mechanical energy?
• What is the minimum amount of current that can "freeze" the body to a conductor?
• Is a regulator an optional part of a power supply?
• Which component is used to store electrical energy in an electric field?
• What is an active component in electronics?
• What is the primary purpose of a power supply in an electronic circuit?
• What does a filter do in the context of power supplies?
• What is magnetomotive force?
• What is the principle of operation of a transformer?
• What does Counterelectromotive Force (CEMF) refer to in a motor?
• What happens as the tolerance of a resistor decreases?
• Which of the following states the relationship between diode bias voltage and conduction for germanium diodes?
• How is power defined in electrical machinery?
• What does the tuning knob primarily adjust within the tuner?
• Operational Amplifiers can be used in which of the following applications?
• Which amplifier configuration allows an Operational Amplifier to function as a voltage follower?
• What does the efficiency of a motor indicate?
• What are the two main types of transistors?
• What is the function of a pre-amplifier in an audio system?