HAM Technician T6

What electrical component opposes the flow of current in a DC circuit?
A.  Voltmeter
B.  Inductor
C.  Resistor
D.  Transformer

What type of component is often used as an adjustable volume control?
A.  Transformer
B.  Potentiometer
C.  Fixed resistor
D.  Power resistor

What electrical parameter is controlled by a potentiometer?
A.  Resistance
B.  Inductance
C.  Field strength
D.  Capacitance

What electrical component stores energy in an electric field?
A.  Resistor
B.  Inductor
C.  Diode
D.  Capacitor

What type of electrical component consists of two or more conductive surfaces separated by an insulator?
A.  Capacitor
B.  Potentiometer
C.  Resistor
D.  Oscillator

What type of electrical component stores energy in a magnetic field?
A.  Diode
B.  Capacitor
C.  Inductor
D.  Resistor

What electrical component usually is constructed as a coil of wire?
A.  Diode
B.  Inductor
C.  Capacitor
D.  Switch

What electrical component is used to connect or disconnect electrical circuits?
A.  Magnetron
B.  Thermistor
C.  Switch
D.  All of these choices are correct

What electrical component is used to protect other circuit components from current overloads?
A.  All of these choices are correct
B.  Inductor
C.  Capacitor
D.  Fuse

Which of the following battery types is rechargeable?
A.  Nickel-metal hydride
B.  Lead-acid gel-cell
C.  All of these choices are correct
D.  Lithium-ion

Which of the following battery types is not rechargeable?
A.  Nickel-cadmium
B.  Lithium-ion
C.  Lead-acid
D.  Carbon-zinc

What class of electronic components uses a voltage or current signal to control current flow?
A.  Inductors
B.  Transistors
C.  Resistors
D.  Capacitors

What electronic component allows current to flow in only one direction?
A.  Resistor
B.  Fuse
C.  Diode
D.  Driven element

Which of these components can be used as an electronic switch or amplifier?
A.  Transistor
B.  Oscillator
C.  Potentiometer
D.  Voltmeter

Which of the following components can consist of three layers of semiconductor material?
A.  Alternator
B.  Transistor
C.  Pentagrid converter
D.  Triode

Which of the following electronic components can amplify signals?
A.  Variable resistor
B.  Electrolytic capacitor
C.  Transistor
D.  Multi-cell battery

How is the cathode lead of a semiconductor diode often marked on the package?
A.  With a stripe
B.  With the letter C
C.  With the word "cathode"
D.  With the letter K

What does the abbreviation LED stand for?
A.  Liquid Emission Detector
B.  Long Echo Delay
C.  Light Emitting Diode
D.  Low Emission Diode

What does the abbreviation FET stand for?
A.  Free Electron Transmitter
B.  Frequency Emission Transmitter
C.  Fast Electron Transistor
D.  Field Effect Transistor

What are the names of the two electrodes of a diode?
A.  Gate and base
B.  Source and drain
C.  Anode and cathode
D.  Plus and minus

Which of the following could be the primary gain-producing component in an RF power amplifier?
A.  Transformer
B.  Reactor
C.  Resistor
D.  Transistor

What is the term that describes a device's ability to amplify a signal?
A.  Forward resistance
B.  On resistance
C.  Forward voltage drop
D.  Gain

What is the name of an electrical wiring diagram that uses standard component symbols?
A.  Schematic
B.  Bill of materials
C.  Connector pinout
D.  Flow chart

What is component 1 in figure T1?
A.  Transistor
B.  Connector
C.  Resistor
D.  Battery

What is component 2 in figure T1?
A.  Transistor
B.  Resistor
C.  Connector
D.  Indicator lamp

What is component 3 in figure T1?
A.  Ground symbol
B.  Resistor
C.  Lamp
D.  Transistor

What is component 4 in figure T1?
A.  Resistor
B.  Transistor
C.  Battery
D.  Ground symbol

What is component 6 in figure T2?
A.  Regulator IC
B.  Resistor
C.  Transistor
D.  Capacitor

What is component 8 in figure T2?
A.  Resistor
B.  Regulator IC
C.  Light emitting diode
D.  Inductor

What is component 9 in figure T2?
A.  Variable capacitor
B.  Variable inductor
C.  Variable resistor
D.  Variable transformer

What is component 4 in figure T2?
A.  Potentiometer
B.  Transformer
C.  Double-pole switch
D.  Variable inductor

What is component 3 in figure T3?
A.  Connector
B.  Variable capacitor
C.  Meter
D.  Variable inductor

What is component 4 in figure T3?
A.  Transmitter
B.  Ground
C.  Dummy load
D.  Antenna

What do the symbols on an electrical schematic represent?
A.  Logic states
B.  Traffic nodes
C.  Electrical components
D.  Digital codes

Which of the following is accurately represented in electrical schematics?
A.  All of these choices are correct
B.  Wire lengths
C.  Physical appearance of components
D.  The way components are interconnected

Which of the following devices or circuits changes an alternating current into a varying direct current signal?
A.  Reflector
B.  Rectifier
C.  Amplifier
D.  Transformer

What is a relay?
A.  An electrically-controlled switch
B.  An optical sensor
C.  A current controlled amplifier
D.  A pass transistor

What type of switch is represented by component 3 in figure T2?
A.  Single-pole single-throw
B.  Double-pole single-throw
C.  Single-pole double-throw
D.  Double-pole double-throw

Which of the following displays an electrical quantity as a numeric value?
A.  Relay
B.  Transistor
C.  Meter
D.  Potentiometer

What type of circuit controls the amount of voltage from a power supply?
A.  Phase inverter
B.  Regulator
C.  Filter
D.  Oscillator

What component is commonly used to change 120V AC house current to a lower AC voltage for other uses?
A.  Diode
B.  Variable capacitor
C.  Transformer
D.  Transistor

Which of the following is commonly used as a visual indicator?
A.  Zener diode
B.  LED
C.  Bipolar transistor
D.  FET

Which of the following is combined with an inductor to make a tuned circuit?
A.  Capacitor
B.  Zener diode
C.  Resistor
D.  Potentiometer

What is the name of a device that combines several semiconductors and other components into one package?
A.  Multi-pole relay
B.  Transducer
C.  Transformer
D.  Integrated circuit

What is the function of component 2 in Figure T1?
A.  Supply electrical energy
B.  Convert electrical energy into radio waves
C.  Control the flow of current
D.  Give off light when current flows through it

Which of the following is a resonant or tuned circuit?
A.  A circuit designed to provide high-fidelity audio
B.  A resistor circuit used for reducing standing wave ratio
C.  An inductor and a capacitor connected in series or parallel to form a filter
D.  A type of voltage regulator

Which of the following is a common 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 couple the wire to other signals
D.  To prevent coupling of unwanted signals to or from the wire