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