Ham Technician License Practice Quiz
• Percentage: 0%; Correct: 0; Total: 0 of 35
T0A03: What is connected to the green wire in a three-wire electrical AC plug?
Neutral
Hot
Safety ground
The white wire
T0B05: What is the purpose of a gin pole?
To temporarily replace guy wires
To be used in place of a safety harness
To lift tower sections or antennas
To provide a temporary ground
T0C08: Which of the following actions might amateur operators take to prevent exposure to RF radiation in excess of FCC-supplied limits?
Relocate antennas
Relocate the transmitter
Increase the duty cycle
All of these choices are correct
T1A04: Which of the following meets the FCC definition of harmful interference?
Radio transmissions that annoy users of a repeater
Unwanted radio transmissions that cause costly harm to radio station apparatus
That which seriously degrades, obstructs, or repeatedly interrupts a radio communication service operating in accordance with the Radio Regulations
Static from lightning storms
T1B11: What emission modes are permitted in the mode-restricted sub-bands at 50.0 to 50.1 MHz and 144.0 to 144.1 MHz?
CW only
CW and RTTY
SSB only
CW and SSB
T1C01: Which type of call sign has a single letter in both the prefix and suffix?
Vanity
Sequential
Special event
In-memoriam
T1D08: When may the control operator of an amateur station receive compensation for operating the station?
When engaging in communications on behalf of their employer
When the communication is incidental to classroom instruction at an educational institution
When re-broadcasting weather alerts during a RACES net
When notifying other amateur operators of the availability for sale or trade of apparatus
T1E08: What type of control is being used for a repeater when the control operator is not present at a control point?
Local control
Remote control
Automatic control
Unattended
T1F02: When using tactical identifiers, how often must your station transmit the station's FCC-assigned call sign?
Never, the tactical call is sufficient
Once during every hour
Every ten minutes
At the end of every communication
T2A09: What brief statement is often used in place of "CQ" to indicate that you are listening on a repeater?
Say "Hello test" followed by your call sign
Say your call sign
Say the repeater call sign followed by your call sign
Say the letters "QSY" followed by your call sign
T2B01: What is the term used to describe an amateur station that is transmitting and receiving on the same frequency?
Full duplex communication
Diplex communication
Simplex communication
Half duplex communication
T2C04: What do RACES and ARES have in common?
They represent the two largest ham clubs in the United States
Both organizations broadcast road and weather traffic information
Neither may handle emergency traffic supporting public service agencies
Both organizations may provide communications during emergencies
T3A02: Why are UHF signals often more effective from inside buildings than VHF signals?
VHF signals lose power faster over distance
The shorter wavelength allows them to more easily penetrate the structure of buildings
This is incorrect; VHF works better than UHF inside buildings
UHF antennas are more efficient than VHF antennas
T3B07: What property of radio waves is often used to identify the different frequency bands?
The approximate wavelength
The magnetic intensity of waves
The time it takes for waves to travel one mile
The voltage standing wave ratio of waves
T3C10: What is the radio horizon?
The distance at which radio signals between two points are effectively blocked by the curvature of the Earth
The distance from the ground to a horizontally mounted antenna
The farthest point you can see when standing at the base of your antenna tower
The shortest distance between two points on the Earth's surface
T4A03: Which is a good reason to use a regulated power supply for communications equipment?
It prevents voltage fluctuations from reaching sensitive circuits
A regulated power supply has FCC approval
A fuse or circuit breaker regulates the power
Power consumption is independent of load
T4B03: What is the purpose of the squelch control on a transceiver?
To set the highest level of volume desired
To set the transmitter power level
To adjust the automatic gain control
To mute receiver output noise when no signal is being received
T5A03: What is the name for the flow of electrons in an electric circuit?
Voltage
Resistance
Capacitance
Current
T5B11: What is the approximate amount of change, measured in decibels (dB), of a power increase from 20 watts to 200 watts?
10 dB
12 dB
18 dB
28 dB
T5C06: What is the abbreviation that refers to radio frequency signals of all types?
AF
HF
RF
VHF
T5D07: What is the current flow in a circuit with an applied voltage of 120 volts and a resistance of 80 ohms?
9600 amperes
200 amperes
0.667 amperes
1.5 amperes
T6A02: What type of component is often used as an adjustable volume control?
Fixed resistor
Power resistor
Potentiometer
Transformer
T6B02: What electronic component allows current to flow in only one direction?
Resistor
Fuse
Diode
Driven Element
T6C11: What is component 4 in figure T3?
Antenna
Transmitter
Dummy load
Ground
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
T7A03: What is the function of a mixer in a superheterodyne receiver?
To reject signals outside of the desired passband
To combine signals from several stations together
To shift the incoming signal to an intermediate frequency
To connect the receiver with an auxiliary device, such as a TNC
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 transmissions
Frequent blowing of power supply fuses
T7C05: What is the approximate SWR value above which the protection circuits in most solid-state transmitters begin to reduce transmitter power?
2 to 1
1 to 2
6 to 1
10 to 1
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
T8A04: Which type of modulation is most commonly used for VHF and UHF voice repeaters?
AM
SSB
PSK
FM
T8B07: 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
T8C06: For what purpose is a temporary "1 by 1" format (letter-number-letter) call sign assigned?
To designate an experimental station
To honor a deceased relative who was a radio amateur
For operations in conjunction with an activity of special significance to the amateur community
All of these choices are correct
T8D10: Which of the following can be used to transmit CW in the amateur bands?
Straight Key
Electronic Keyer
Computer Keyboard
All of these choices are correct
T9A06: What type of antennas are the quad, Yagi, and dish?
Non-resonant antennas
Loop antennas
Directional antennas
Isotropic antennas
T9B05: What generally happens as the frequency of a signal passing through coaxial cable is increased?
The apparent SWR increases
The reflected power increases
The characteristic impedance increases
The loss increases
