Group T6D

11 questions from the official pool, drawn by ID — exact wording, never retyped.

T6D01 Which of the following devices or circuits changes an alternating current into a varying direct current signal?

A Transformer B Rectifier C Amplifier D Reflector

T6D02 What is a relay?

A An electrically-controlled switch B A current-controlled amplifier C An inverting amplifier D A pass transistor

T6D03 Which of the following is a reason to use shielded wire?

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 reduce receiver overload

T6D04 Which of the following displays an electrical quantity as a numeric value?

A Potentiometer B Transistor C Meter D Relay

T6D05 What type of circuit controls the amount of voltage from a power supply?

A Regulator B Oscillator C Filter D Phase inverter

T6D06 What component changes 120 V AC power to a lower AC voltage for other uses?

A Variable capacitor B Transformer C Transistor D Diode

T6D07 Which of the following is commonly used as a visual indicator?

A LED B FET C Zener diode D All these choices are correct

T6D08 Which of the following is combined with an inductor to make a resonant circuit?

A Resistor B Zener diode C Potentiometer D Capacitor

T6D09 What is the name of a device that combines several semiconductors and other components into one package?

A Transducer B Multi-pole relay C Integrated circuit D Transformer

T6D10 What is the function of component 2 in figure T-1?

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 Which of the following is a resonant or tuned circuit?

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