Technician pool, section T6D

Subelement T6

ELECTRONIC AND ELECTRICAL COMPONENTS

Section T6D

Component functions: rectifiers, relays, voltage regulators, meters, indicators, integrated circuits, transformers; Resonant circuit; Shielding

T6D01

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

A.
Transformer
Correct Answer
B.
Rectifier
C.
Amplifier
D.
Reflector

T6D01

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T6D02

What is a relay?

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

T6D02

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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
Correct Answer
C.
To prevent coupling of unwanted signals to or from the wire
D.
To reduce receiver overload

T6D03

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T6D04

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

A.
Potentiometer
B.
Transistor
Correct Answer
C.
Meter
D.
Relay

T6D04

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T6D05

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

Correct Answer
A.
Regulator
B.
Oscillator
C.
Filter
D.
Phase inverter

T6D05

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T6D06

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

A.
Variable capacitor
Correct Answer
B.
Transformer
C.
Transistor
D.
Diode

T6D06

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T6D07

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

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

T6D07

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T6D08

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

A.
Resistor
B.
Zener diode
C.
Potentiometer
Correct Answer
D.
Capacitor

T6D08

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T6D09

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

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

T6D09

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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
Correct Answer
C.
Control the flow of current
D.
Convert electrical energy into radio waves

T6D10

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T6D11

Which of the following is a resonant or tuned circuit?

Correct Answer
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

T6D11

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