HAM Technician T6

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

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

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

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.  Potentiometer
B.  Oscillator
C.  Resistor
D.  Capacitor

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

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

What electrical component is used to connect or disconnect electrical circuits?
A.  Thermistor
B.  Magnetron
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.  Fuse
D.  Capacitor

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

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

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

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

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

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

Which of the following electronic components can amplify signals?
A.  Variable resistor
B.  Transistor
C.  Electrolytic capacitor
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 word "cathode"
C.  With the letter K
D.  With the letter C

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

What does the abbreviation FET stand for?
A.  Frequency Emission Transmitter
B.  Free Electron 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.  Anode and cathode
C.  Plus and minus
D.  Source and drain

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

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

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

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

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

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

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

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

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

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

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

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.  Antenna
C.  Ground
D.  Dummy load

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

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

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

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

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

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

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

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

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

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

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

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

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

Which of the following is a common reason to use shielded wire?
A.  To couple the wire to other signals
B.  To decrease the resistance of DC power connections
C.  To prevent coupling of unwanted signals to or from the wire
D.  To increase the current carrying capability of the wire