69 lines
2.4 KiB
Markdown
69 lines
2.4 KiB
Markdown
T6D - Component functions: rectifiers, relays, voltage regulators, meters, indicators, integrated circuits, transformers; Resonant circuit; Shielding
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- [[T6D01]] (B)
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Which of the following devices or circuits changes an alternating current into a varying direct current signal? #card
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- A. Transformer
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- B. Rectifier
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- C. Amplifier
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- D. Reflector
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- [[T6D02]] (A)
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What is a relay? #card
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- A. An electrically-controlled switch
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- B. A current controlled amplifier
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- C. An inverting amplifier
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- D. A pass transistor
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- [[T6D03]] (C)
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Which of the following is a reason to use shielded wire? #card
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- A. To decrease the resistance of DC power connections
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- B. To increase the current carrying capability of the wire
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- C. To prevent coupling of unwanted signals to or from the wire
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- D. To couple the wire to other signals
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- [[T6D04]] (C)
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Which of the following displays an electrical quantity as a numeric value? #card
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- A. Potentiometer
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- B. Transistor
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- C. Meter
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- D. Relay
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- [[T6D05]] (A)
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What type of circuit controls the amount of voltage from a power supply? #card
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- A. Regulator
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- B. Oscillator
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- C. Filter
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- D. Phase inverter
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- [[T6D06]] (B)
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What component changes 120 V AC power to a lower AC voltage for other uses? #card
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- A. Variable capacitor
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- B. Transformer
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- C. Transistor
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- D. Diode
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- [[T6D07]] (A)
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Which of the following is commonly used as a visual indicator? #card
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- A. LED
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- B. FET
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- C. Zener diode
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- D. Bipolar transistor
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- [[T6D08]] (D)
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Which of the following is combined with an inductor to make a resonant circuit? #card
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- A. Resistor
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- B. Zener diode
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- C. Potentiometer
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- D. Capacitor
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- [[T6D09]] (C)
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What is the name of a device that combines several semiconductors and other components into one package? #card
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- A. Transducer
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- B. Multi-pole relay
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- C. Integrated circuit
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- D. Transformer
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- [[T6D10]] (C)
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What is the function of component 2 in figure T-1? #card
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- A. Give off light when current flows through it
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- B. Supply electrical energy
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- C. Control the flow of current
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- D. Convert electrical energy into radio waves
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- [[T6D11]] (A)
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Which of the following is a resonant or tuned circuit? #card
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- A. An inductor and a capacitor in series or parallel
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- B. A linear voltage regulator
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- C. A resistor circuit used for reducing standing wave ratio
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- D. A circuit designed to provide high-fidelity audio |