US_TECH_2022_2026
Technician 2022-2026 - Electronic components and circuits
Electronic components and circuits groups the T6 section questions for focused review and easier weak-point tracking.
47
Questions
9
Sibling Topics
- Pool
- Technician 2022-2026
- Questions
- 47
- Topic
- Electronic components and circuits
- Region
- US
Read the condition in the stem before comparing key terms in the options.
Study rules, calculations, and equipment questions as separate patterns.
After this topic, return to the full pool for mixed practice.
Topic Study Guide
This topic covers the functions of basic electronic components (resistors, capacitors, inductors), semiconductors (diodes, transistors), and the identification of schematic symbols. It is the foundation for understanding how radio equipment works.
High-Yield Checks
- Basic Component Definitions: Remember resistors oppose DC, capacitors are conductors separated by an insulator, and inductors are coils.
- Semiconductor Characteristics: Transistors act as electronic switches or amplifiers; FETs have a gate, drain, and source. Diodes have an anode and cathode.
- Circuit Module Functions: Rectifiers convert AC to DC, and regulators control voltage output.
- Schematic Symbols: Focus on distinguishing battery (unequal lines) from capacitor (equal lines) symbols, and antenna (branching up) from ground (tapering down) symbols.
Trap Patterns
- Confusing Component Terminals: Easily mixing up transistor terminals like Source/Drain with diode terminals like Anode/Cathode.
- Misjudging Schematic Symbol Details: Ignoring the outward arrows on an LED symbol (emitting light) and mistaking it for a photodiode, or confusing a dual-coil transformer with a single-coil inductor.
- Confusing Power Supply Components: Mixing up the functions of a rectifier (AC to DC) with a transformer (changes voltage) or a filter (smooths waveform).
Review Steps
- Master Basic Components: Memorize the core physical characteristics and basic roles of resistors, capacitors, and inductors one by one.
- Categorize Semiconductors: Review diodes and transistors separately, focusing on their pin names like Anode/Cathode vs Gate/Drain/Source.
- Conquer Schematic Questions: Using figures T-1, T-2, and T-3 in the pool, cover the answers and try to accurately name each numbered component.
- Link Power Supply Logic: Understand the specific role of each circuit module in a power supply following the sequence: transform -> rectify -> filter -> regulate.
Quick Checks
- Which component is primarily used to oppose the flow of direct current?
- What are the two electrodes of a diode called?
- In a power supply, what is the circuit that converts AC to DC called?
- In a schematic, how do you distinguish battery and capacitor symbols by line length?
Questions in This Topic
Choose Practice ModeT6A01What electrical component opposes the flow of current in a DC circuit?T6A02What type of component is often used as an adjustable volume control?T6A03What electrical parameter is controlled by a potentiometer?T6A04What electrical component stores energy in an electric field?T6A05What type of electrical component consists of conductive surfaces separated by an insulator?T6A06What type of electrical component stores energy in a magnetic field?T6A07What electrical component is typically constructed as a coil of wire?T6A08What is the function of an SPDT switch?T6A09What electrical component is used to protect other circuit components from current overloads?T6A10Which of the following battery chemistries is rechargeable?T6A11Which of the following battery chemistries is not rechargeable?T6A12What type of switch is represented by component 3 in figure T-2?T6B01Which is true about forward voltage drop in a diode?T6B02What electronic component allows current to flow in only one direction?T6B03Which of these components can be used as an electronic switch?T6B04Which of the following components can consist of three regions of semiconductor material?T6B05What type of transistor has a gate, drain, and source?T6B06How is the cathode lead of a semiconductor diode often marked on the package?T6B07What causes a light-emitting diode (LED) to emit light?T6B08What does the abbreviation FET stand for?T6B09What are the names for the electrodes of a diode?T6B10Which of the following can provide power gain?T6B11What is the term that describes a device's ability to amplify a signal?T6B12What are the names of the electrodes of a bipolar junction transistor?T6C01What is the name of an electrical wiring diagram that uses standard component symbols?T6C02What is component 1 in figure T-1?T6C03What is component 2 in figure T-1?T6C04What is component 3 in figure T-1?T6C05What is component 4 in figure T-1?T6C06What is component 6 in figure T-2?T6C07What is component 8 in figure T-2?T6C08What is component 9 in figure T-2?T6C09What is component 4 in figure T-2?T6C10What is component 3 in figure T-3?T6C11What is component 4 in figure T-3?T6C12Which of the following is accurately represented in electrical schematics?T6D01Which of the following devices or circuits changes an alternating current into a varying direct current signal?T6D02What is a relay?T6D03Which of the following is a reason to use shielded wire?T6D04Which of the following displays an electrical quantity as a numeric value?T6D05What type of circuit controls the amount of voltage from a power supply?T6D06What component changes 120 V AC power to a lower AC voltage for other uses?T6D07Which of the following is commonly used as a visual indicator?T6D08Which of the following is combined with an inductor to make a resonant circuit?T6D09What is the name of a device that combines several semiconductors and other components into one package?T6D10What is the function of component 2 in figure T-1?T6D11Which of the following is a resonant or tuned circuit?
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