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!


T1D03:

When is it permissible to transmit messages encoded to hide their meaning?

Only during contests
Only when operating mobile
Only when transmitting control commands to space stations or radio control craft
Only when frequencies above 1280 MHz are used

T5C05:

What is the unit of frequency?

Hertz
Henry
Farad
Tesla

T0A03:

In the United States, what is connected to the green wire in a three-wire electrical AC plug?

Neutral
Hot
Equipment ground
The white wire

T8A07:

What is an advantage of single sideband (SSB) over FM for voice transmissions?

SSB signals are easier to tune
SSB signals are less susceptible to interference
SSB signals have narrower bandwidth
All of these choices are correct

T5D14:

What happens to current at the junction of two components in parallel?

It divides between them dependent on the value of the components
It is the same in both components
Its value doubles
Its value is halved

T2A12:

Which of the following is a guideline when choosing an operating frequency for calling CQ?

Listen first to be sure that no one else is using the frequency
Ask if the frequency is in use
Make sure you are in your assigned band
All of these choices are correct

T9B02:

What is the impedance of most coaxial cables used in amateur radio installations?

8 ohms
50 ohms
600 ohms
12 ohms

T7D05:

What instrument is used to measure resistance?

An oscilloscope
A spectrum analyzer
A noise bridge
An ohmmeter

T7B11:

What is a symptom of RF feedback in a transmitter or transceiver?

Excessive SWR at the antenna connection
The transmitter will not stay on the desired frequency
Reports of garbled, distorted, or unintelligible voice transmissions
Frequent blowing of power supply fuses

T6A06:

What type of electrical component stores energy in a magnetic field?

Resistor
Capacitor
Inductor
Diode

T6D07:

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

LED
FET
Zener diode
Bipolar transistor

T8D09:

What code is used when sending CW in the amateur bands?

Baudot
Hamming
International Morse
All of these choices are correct

T3C06:

What mode is responsible for allowing over-the-horizon VHF and UHF communications to ranges of approximately 300 miles on a regular basis?

Tropospheric ducting
D layer refraction
F2 layer refraction
Faraday rotation

T1A02:

Which agency regulates and enforces the rules for the Amateur Radio Service in the United States?

FEMA
Homeland Security
The FCC
All of these choices are correct

T2B01:

What is the most common use of the "reverse split" function of a VHF/UHF transceiver?

Reduce power output
Increase power output
Listen on a repeater's input frequency
Listen on a repeater's output frequency

T3B03:

What are the two components of a radio wave?

AC and DC
Voltage and current
Electric and magnetic fields
Ionizing and non-ionizing radiation

T9A06:

What type of antennas are the quad, Yagi, and dish?

Non-resonant antennas
Log periodic antennas
Directional antennas
Isotropic antennas

T7A03:

Which of the following is used to convert a radio signal from one frequency to another?

Phase splitter
Mixer
Inverter
Amplifier

T8C08:

What is the Internet Radio Linking Project (IRLP)?

A technique to connect amateur radio systems, such as repeaters, via the internet using Voice Over Internet Protocol (VoIP)
A system for providing access to websites via amateur radio
A system for informing amateurs in real time of the frequency of active DX stations
A technique for measuring signal strength of an amateur transmitter via the internet

T2C10:

What information is contained in the preamble of a formal traffic message?

The email address of the originating station
The address of the intended recipient
The telephone number of the addressee
The information needed to track the message

T8B09:

What causes spin fading of satellite signals?

Circular polarized noise interference radiated from the sun
Rotation of the satellite and its antennas
Doppler shift of the received signal
Interfering signals within the satellite uplink band

T5B06:

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

T0C07:

What could happen if a person accidentally touched your antenna while you were transmitting?

Touching the antenna could cause television interference
They might receive a painful RF burn
They might develop radiation poisoning
All of these choices are correct

T6C10:

What is component 3 in figure T3?

Connector
Meter
Variable capacitor
Variable inductor
Circuit Diagram

T0B03:

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
Never

T7C12:

What does a dummy load consist of?

A high-gain amplifier and a TR switch
A non-inductive resistor and a heat sink
A low-voltage power supply and a DC relay
A 50 ohm reactance used to terminate a transmission line

T5A06:

How much voltage does a mobile transceiver typically require?

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

T4B12:

Which of the following could be used to remove power line noise or ignition noise?

Squelch
Noise blanker
Notch filter
All of these choices are correct

T3A04:

What can happen if the antennas at opposite ends of a VHF or UHF line of sight radio link are not using the same polarization?

The modulation sidebands might become inverted
Signals could be significantly weaker
Signals have an echo effect on voices
Nothing significant will happen

T6B04:

Which of the following components can consist of three layers of semiconductor material?

Alternator
Transistor
Triode
Pentagrid converter

T1B06:

On which HF bands does a Technician class operator have phone privileges?

None
10 meter band only
80 meter, 40 meter, 15 meter and 10 meter bands
30 meter band only

T1E06:

When, under normal circumstances, may a Technician class licensee be the control operator of a station operating in an exclusive Amateur Extra class operator segment of the amateur bands?

At no time
When operating a special event station
As part of a multi-operator contest team
When using a club station whose trustee is an Amateur Extra class operator licensee

T4A06:

Which of the following connections might be used between a voice transceiver and a computer for digital operation?

Receive and transmit mode, status, and location
Antenna and RF power
Receive audio, transmit audio, and push-to-talk (PTT)
NMEA GPS location and DC power

T1F04:

Which of the following is an acceptable language to use for station identification when operating in a phone sub-band?

Any language recognized by the United Nations
Any language recognized by the ITU
The English language
English, French, or Spanish

T1C05:

Which of the following is a valid call sign for a Technician class amateur radio station?

K1XXX
KA1X
W1XX
All of these choices are correct