Ham Technician License Practice Quiz


• Percentage: 0%; Correct: 0; Total: 0 of 35

T0A06: What is a good way to guard against electrical shock at your station?

Use three-wire cords and plugs for all AC powered equipment
Connect all AC powered station equipment to a common safety ground
Use a circuit protected by a ground-fault interrupter
All of these choices are correct

T0B04: Which of the following is an important safety precaution to observe when putting up an antenna tower?

Wear a ground strap connected to your wrist at all times
Insulate the base of the tower to avoid lightning strikes
Look for and stay clear of any overhead electrical wires
All of these choices are correct

T0C03: 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

T1A01: For whom is the Amateur Radio Service intended?

Persons who have messages to broadcast to the public
Persons who need communications for the activities of their immediate family members, relatives and friends
Persons who need two-way communications for personal reasons
Persons who are interested in radio technique solely with a personal aim and without pecuniary interest

T1B04: Which amateur band are you using when your station is transmitting on 146.52 MHz?

2 meter band
20 meter band
14 meter band
6 meter band

T1C04: When are you allowed to operate your amateur station in a foreign country?

When the foreign country authorizes it
When there is a mutual agreement allowing third party communications
When authorization permits amateur communications in a foreign language
When you are communicating with non-licensed individuals in another country

T1D03: When is the transmission of codes or ciphers allowed to hide the meaning of a message transmitted by an amateur station?

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

T1E02: Who is eligible to be the control operator of an amateur station?

Only a person holding an amateur service license from any country that belongs to the United Nations
Only a citizen of the United States
Only a person over the age of 18
Only a person for whom an amateur operator/primary station license grant appears in the FCC database or who is authorized for alien reciprocal operation

T1F10: Who is accountable should a repeater inadvertently retransmit communications that violate the FCC rules?

The control operator of the originating station
The control operator of the repeater
The owner of the repeater
Both the originating station and the repeater owner

T2A07: Which of the following is true when making a test transmission?

Station identification is not required if the transmission is less than 15 seconds
Station identification is not required if the transmission is less than 1 watt
Station identification is required only if your station can be heard
Station identification is required at least every ten minutes during the test and at the end

T2B11: What is the "Q" signal used to indicate that you are changing frequency?

QRU
QSY
QSL
QRZ

T2C10: What is the preamble in a formal traffic message?

The first paragraph of the message text
The message number
The priority handling indicator for the message
The information needed to track the message as it passes through the amateur radio traffic handling system

T3A09: Which of the following is a common effect of "skip" reflections between the Earth and the ionosphere?

The sidebands become reversed at each reflection
The polarization of the original signal is randomized
The apparent frequency of the received signal is shifted by a random amount
Signals at frequencies above 30 MHz become stronger with each reflection

T3B06: What is the formula for converting frequency to wavelength in meters?

Wavelength in meters equals frequency in hertz multiplied by 300
Wavelength in meters equals frequency in hertz divided by 300
Wavelength in meters equals frequency in megahertz divided by 300
Wavelength in meters equals 300 divided by frequency in megahertz

T3C01: Why are "direct" (not via a repeater) UHF signals rarely heard from stations outside your local coverage area?

They are too weak to go very far
FCC regulations prohibit them from going more than 50 miles
UHF signals are usually not reflected by the ionosphere
They collide with trees and shrubbery and fade out

T4A10: What is the source of a high-pitched whine that varies with engine speed in a mobile transceiver's receive audio?

The ignition system
The alternator
The electric fuel pump
Anti-lock braking system controllers

T4B11: Which of the following describes the common meaning of the term 'repeater offset'?

The distance between the repeater's transmit and receive antennas
The time delay before the repeater timer resets
The difference between the repeater's transmit and receive frequencies
The maximum frequency deviation permitted on the repeater's input signal

T5A08: Which of the following is a good electrical insulator?

Copper
Glass
Aluminum
Mercury

T5B01: How many milliamperes is 1.5 amperes?

15 milliamperes
150 milliamperes
1,500 milliamperes
15,000 milliamperes

T5C05: What is the unit of frequency?

Hertz
Henry
Farad
Tesla

T5D10: What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows through it?

1 volt
0.25 volts
2.5 volts
1.5 volts

T6A07: What electrical component is usually composed of a coil of wire?

Switch
Capacitor
Diode
Inductor

T6B01: What class of electronic components is capable of using a voltage or current signal to control current flow?

Capacitors
Inductors
Resistors
Transistors

T6C12: What do the symbols on an electrical circuit schematic diagram represent?

Electrical components
Logic states
Digital codes
Traffic nodes

T6D11: Which of the following is a common use of coaxial cable?

Carry dc power from a vehicle battery to a mobile radio
Carry RF signals between a radio and antenna
Secure masts, tubing, and other cylindrical objects on towers
Connect data signals from a TNC to a computer

T7A01: What is the function of a product detector?

Detect phase modulated signals
Demodulate FM signals
Detect CW and SSB signals
Combine speech and RF signals

T7B12: What does the acronym "BER" mean when applied to digital communications systems?

Baud Enhancement Recovery
Baud Error Removal
Bit Error Rate
Bit Exponent Resource

T7C10: Why should the outer jacket of coaxial cable be resistant to ultraviolet light?

Ultraviolet resistant jackets prevent harmonic radiation
Ultraviolet light can increase losses in the cable's jacket
Ultraviolet and RF signals can mix together, causing interference
Ultraviolet light can damage the jacket and allow water to enter the cable

T7D11: Which of the following precautions should be taken when measuring circuit resistance with an ohmmeter?

Ensure that the applied voltages are correct
Ensure that the circuit is not powered
Ensure that the circuit is grounded
Ensure that the circuit is operating at the correct frequency

T8A07: What is the primary advantage of single sideband 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

T8B09: What causes "spin fading" when referring to 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

T8C02: Which of these items would be useful for a hidden transmitter hunt?

Calibrated SWR meter
A directional antenna
A calibrated noise bridge
All of these choices are correct

T8D11: What is a "parity" bit?

A control code required for automatic position reporting
A timing bit used to ensure equal sharing of a frequency
An extra code element used to detect errors in received data
A "triple width" bit used to signal the end of a character

T9A07: What is a good reason not to use a "rubber duck" antenna inside your car?

Signals can be significantly weaker than when it is outside of the vehicle
It might cause your radio to overheat
The SWR might decrease, decreasing the signal strength
All of these choices are correct

T9B01: Why is it important to have a low SWR in an antenna system that uses coaxial cable feedline?

To reduce television interference
To allow the efficient transfer of power and reduce losses
To prolong antenna life
All of these choices are correct