T6D

Question 1

T6D01 (B)
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

Answer 1

2 Rectifier

Question 2

T6D02 (A)
What is a relay?

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

Answer 2

1 An electrically-controlled switch

Question 3

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

1 Regulator
2 Oscillator
3 Filter
4 Phase inverter

Answer 3

1 Regulator

Question 4

T6D06 (B)
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

Answer 4

2 Transformer

Question 5

T6D08 (D)
Which of the following is combined with an inductor to make a tuned circuit?

1 Resistor
2 Zener diode
3 Potentiometer
4 Capacitor

Answer 5

4 Capacitor

Question 6

T6D11 (A)
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

Answer 6

1 An inductor and a capacitor connected in series or

parallel to form a filter