T6D01:

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

1. Transformer
2. Rectifier
3. Amplifier
4. Reflector

T6D02:

What is a relay?

1. An electrically-controlled switch
2. A current controlled amplifier
3. An optical sensor
4. A pass transistor

T6D03:

What type of switch is represented by component 3 in figure T2?

1. Single-pole single-throw
2. Single-pole double-throw
3. Double-pole single-throw
4. Double-pole double-throw

T6D04:

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

1. Potentiometer
2. Transistor
3. Meter
4. Relay

T6D05:

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

1. Regulator
2. Oscillator
3. Filter
4. Phase inverter

T6D06:

What component is commonly used to change 120V AC house current to a lower AC voltage for other uses?

1. Variable capacitor
2. Transformer
3. Transistor
4. Diode

T6D07:

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

1. LED
2. FET
3. Zener diode
4. Bipolar transistor

T6D08:

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

1. Resistor
2. Zener diode
3. Potentiometer
4. Capacitor

T6D09:

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

1. Transducer
2. Multi-pole relay
3. Integrated circuit
4. Transformer

T6D10:

What is the function of component 2 in Figure T1?

1. Give off light when current flows through it
2. Supply electrical energy
3. Control the flow of current
4. Convert electrical energy into radio waves

T6D11:

Which of the following is a resonant or tuned circuit?

1. An inductor and a capacitor connected in series or parallel to form a filter
2. A type of voltage regulator
3. A resistor circuit used for reducing standing wave ratio
4. A circuit designed to provide high-fidelity audio

T6D12:

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

1. To decrease the resistance of DC power connections
2. To increase the current carrying capability of the wire
3. To prevent coupling of unwanted signals to or from the wire
4. To couple the wire to other signals