Technician Class Practice Test

Select the most correct answer for each question, then submit your practice test to check your score. This practice test randomly pulls one question from each topic in the Technician pool.

Good Luck!


Which of the following best describes DMR (Digital Mobile Radio)?

A technique for time-multiplexing two digital voice signals on a single 12.5 kHz repeater channel
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
A digital technique for transmitting on two repeater inputs simultaneously for automatic error correction


What are the FCC rules regarding the use of a phonetic alphabet for station identification in the Amateur Radio Service?

It is required when transmitting emergency messages
It is prohibited
It is required when in contact with foreign stations
It is encouraged


What is the voltage across a 10-ohm resistor if a current of 1 ampere flows through it?

1 volt
10 volts
11 volts
9 volts


If an ammeter calibrated in amperes is used to measure a 3000-milliampere current, what reading would it show?

0.003 amperes
0.3 amperes
3 amperes
3,000,000 amperes


What is the function of the SSB/CW-FM switch on a VHF power amplifier?

Change the mode of the transmitted signal
Set the amplifier for proper operation in the selected mode
Change the frequency range of the amplifier to operate in the proper portion of the band
Reduce the received signal noise


Which of the following is an example of remote control as defined in Part 97?

Repeater operation
Operating the station over the internet
Controlling a model aircraft, boat, or car by amateur radio
All of these choices are correct


What may result when correspondence from the FCC is returned as undeliverable because the grantee failed to provide and maintain a correct mailing address with the FCC?

Fine or imprisonment
Revocation of the station license or suspension of the operator license
Require the licensee to be re-examined
A reduction of one rank in operator class


Which of the following could be the primary gain-producing component in an RF power amplifier?



How would you change a dipole antenna to make it resonant on a higher frequency?

Lengthen it
Insert coils in series with radiating wires
Shorten it
Add capacitive loading to the ends of the radiating wires


Under what circumstances is it safe to climb a tower without a helper or observer?

When no electrical work is being performed
When no mechanical work is being performed
When the work being done is not more than 20 feet above the ground


What is the ability to store energy in a magnetic field called?



Which of the following is good procedure when contacting another station in a radio contest?

Sign only the last two letters of your call if there are many other stations calling
Contact the station twice to be sure that you are in his log
Send only the minimum information needed for proper identification and the contest exchange
All of these choices are correct


Which of the following is the most common cause for failure of coaxial cables?

Moisture contamination
Gamma rays
The velocity factor exceeds 1.0


Which of the following connectors is most suitable for frequencies above 400 MHz?

A UHF (PL-259/SO-239) connector
A Type N connector
An RS-213 connector
A DB-25 connector


How much voltage does a mobile transceiver typically require?

About 12 volts
About 30 volts
About 120 volts
About 240 volts


When must the station licensee make the station and its records available for FCC inspection?

At any time ten days after notification by the FCC of such an inspection
At any time upon request by an FCC representative
Only after failing to comply with an FCC notice of violation
Only when presented with a valid warrant by an FCC official or government agent


Which instrument would you use to measure electric potential or electromotive force?

An ammeter
A voltmeter
A wavemeter
An ohmmeter


What is the maximum power level that an amateur radio station may use at VHF frequencies before an RF exposure evaluation is required?

1500 watts PEP transmitter output
1 watt forward power
50 watts PEP at the antenna
50 watts PEP reflected power


With regard to satellite communications, what is Doppler shift?

A change in the satellite orbit
A mode where the satellite receives signals on one band and transmits on another
An observed change in signal frequency caused by relative motion between the satellite and the earth station
A special digital communications mode for some satellites


How fast does a radio wave travel through free space?

At the speed of light
At the speed of sound
Its speed is inversely proportional to its wavelength
Its speed increases as the frequency increases


What is the proper location for an external SWR meter?

In series with the feed line, between the transmitter and antenna
In series with the station's ground
In parallel with the push-to-talk line and the antenna
In series with the power supply cable, as close as possible to the radio


What, if any, are the restrictions concerning transmission of language that may be considered indecent or obscene?

The FCC maintains a list of words that are not permitted to be used on amateur frequencies
Any such language is prohibited
The ITU maintains a list of words that are not permitted to be used on amateur frequencies
There is no such prohibition


Which Q signal indicates that you are receiving interference from other stations?



Which of the following is a likely cause of irregular fading of signals received by ionospheric reflection?

Frequency shift due to Faraday rotation
Interference from thunderstorms
Random combining of signals arriving via different paths
Intermodulation distortion