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Technician's Course Practice Test #3
Technician Class Written Examination - Element 2
To pass this exam you must correctly answer 26 of the 35 questions
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Why should you avoid attaching an antenna to a utility pole?
*
1 point
The antenna could contact high-voltage power lines
The antenna will not work properly because of induced voltages
All these choices are correct
The 60 Hz radiations from the feed line may increase the SWR
Except for some specific restrictions, what is the maximum peak envelope power output for Technician class operators using frequencies above 30 MHz?
*
1 point
1500 watts
100 watts
50 watts
500 watts
Which of the following can damage a multimeter?
*
1 point
Not allowing it to warm up properly
Attempting to measure resistance using the voltage setting
Attempting to measure voltage when using the resistance setting
Failing to connect one of the probes to ground
What electrical component opposes the flow of current in a DC circuit?
*
1 point
Resistor
Transformer
Inverter
Inductor
What is a grid locator?
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1 point
A letter-number designator assigned to a geographic location
A letter-number designator assigned to an azimuth and elevation
An instrument for neutralizing a final amplifier
An instrument for radio direction finding
From which of the following locations may an FCC-licensed amateur station transmit?
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1 point
From within any country that is a member of the United Nations
From within any country that belongs to the International Telecommunication Union
From anywhere within International Telecommunication Union (ITU) Regions 2 and 3
From any vessel or craft located in international waters and documented or registered in the United States
What is the electrical term for the force that causes electron flow?
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1 point
Ampere-hours
Capacitance
Inductance
Voltage
Which instrument is used to measure electric current?
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1 point
A voltmeter
An ohmmeter
An ammeter
An electrometer
What is generally the best time for long-distance 10 meter band propagation via the F region?
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1 point
From dawn to shortly after sunset during periods of low sunspot activity
From dawn to shortly after sunset during periods of high sunspot activity
From shortly after sunset to dawn during periods of high sunspot activity
From shortly after sunset to dawn during periods of low sunspot activity
What should be done to all external ground rods or earth connections?
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1 point
Bond them together with heavy wire or conductive strap
Waterproof them with silicone caulk or electrical tape
Keep them as far apart as possible
Tune them for resonance on the lowest frequency of operation
What is a beam antenna?
*
1 point
An antenna that reverses the phase of received signals
An antenna that concentrates signals in one direction
An omnidirectional antenna invented by Clarence Beam
An antenna built from aluminum I-beams
Which of the following describes DMR?
*
1 point
A technique for time-multiplexing two digital voice signals on a single 12.5 kHz repeater channel
A digital technique for transmitting on two repeater inputs simultaneously for automatic error correction
An automatic position tracking mode for FM mobiles communicating through repeaters
An automatic computer logging technique for hands-off logging when communicating while operating a vehicle
What is the function of component 2 in figure T-1?
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1 point
Give off light when current flows through it
Control the flow of current
Convert electrical energy into radio waves
Supply electrical energy
Which region of the atmosphere can refract or bend HF and VHF radio waves?
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1 point
The stratosphere
The ionosphere
The troposphere
The mesosphere
What is the current in a circuit with an applied voltage of 120 volts and a resistance of 80 ohms?
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1 point
9600 amperes
0.667 amperes
200 amperes
1.5 amperes
What, if any, are the restrictions concerning transmission of language that may be considered indecent or obscene?
*
1 point
The ITU maintains a list of words that are not permitted to be used on amateur frequencies
The FCC maintains a list of words that are not permitted to be used on amateur frequencies
There is no such prohibition
Any such language is prohibited
How is a specific group of stations selected on a digital voice transceiver?
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1 point
By enabling the group’s CTCSS tone
By entering the group’s identification code
By retrieving the frequencies from transceiver memory
By activating automatic identification
Why should a 5-ampere fuse never be replaced with a 20-ampere fuse?
*
1 point
All these choices are correct
Excessive current could cause a fire
The power supply ripple would greatly increase
The larger fuse would be likely to blow because it is rated for higher current
How can you join a digital repeater’s “talkgroup”?
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1 point
Sign your call after the courtesy tone
Join the repeater owner’s club
Program your radio with the group’s ID or code
Register your radio with the local FCC office
What is Voice Over Internet Protocol (VoIP)?
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1 point
A set of rules specifying how to identify your station when linked over the internet to another station
A technique employed to “spot” DX stations via the internet
A method of delivering voice communications over the internet using digital techniques
A technique for measuring the modulation quality of a transmitter using remote sites monitored via
the internet
Which of the following describes a simple dipole oriented parallel to Earth's surface?
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1 point
A vertically polarized antenna
A ground-wave antenna
A horizontally polarized antenna
A travelling-wave antenna
Which is equal to 2425 MHz?
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1 point
24.25 GHz
2.425 GHz
2425 GHz
0.002425 GHz
What is antenna gain?
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1 point
The additional power that is required in the antenna when transmitting on a higher frequency
The increase in signal strength in a specified direction compared to a reference antenna
The increase in impedance on receive or transmit compared to a reference antenna
The additional power that is added to the transmitter power
Which of the following is a requirement for the issuance of a club station license grant?
*
1 point
The trustee must have an Amateur Extra Class operator license grant
All these choices are correct
The club must have at least four members
The club must be registered with the American Radio Relay League
What function is performed with a transceiver and a digital mode hot spot?
*
1 point
High-speed digital communications for meteor scatter
Communication using digital voice or data systems via the internet
RTTY encoding and decoding without a computer
FT8 digital communications via AFSK
What method of call sign identification is required for a station transmitting phone signals?
*
1 point
Send the call sign using only a phone emission
Send the call sign followed by the indicator RPT
Send the call sign followed by the indicator R
Send the call sign using a CW or phone emission
What is the function of the SSB/CW-FM switch on a VHF power amplifier?
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1 point
Change the frequency range of the amplifier to operate in the proper segment of the band
Set the amplifier for proper operation in the selected mode
Change the mode of the transmitted signal
Reduce the received signal noise
When may an amateur station transmit without identifying on the air?
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1 point
When the transmitted power level is below 1 watt
When the transmissions are of a brief nature to make station adjustments
When the transmissions are unmodulated
When transmitting signals to control model craft
Which of the following is an acceptable method to determine whether your station complies with FCC RF exposure regulations?
*
1 point
All these choices are correct
By calculation based on computer modeling
By calculation based on FCC OET Bulletin 65
By measurement of field strength using calibrated equipment
How soon after passing the examination for your first amateur radio license may you transmit on the amateur radio bands?
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1 point
As soon as you receive your license in the mail from the FCC
As soon as your operator/station license grant appears on the ARRL website
Immediately on receiving your Certificate of Successful Completion of Examination (CSCE)
As soon as your operator/station license grant appears in the FCC’s license database
Which of the following is part of the Basis and Purpose of the Amateur Radio Service?
*
1 point
Advancing skills in the technical and communication phases of the radio art
Providing personal radio communications for as many citizens as possible
Providing communications for international non-profit organizations
All these choices are correct
What is the unit of inductance?
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1 point
The ohm
The coulomb
The henry
The farad
What electrical component stores energy in an electric field?
*
1 point
Inductor
Varistor
Diode
Capacitor
Which region of the atmosphere can refract or bend HF and VHF radio waves?
*
1 point
The troposphere
The mesosphere
The ionosphere
The stratosphere
What is the voltage across a 10-ohm resistor if a current of 2 amperes flows through it?
*
1 point
8 volts
12 volts
0.2 volts
20 volts
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