Ham Technician License Practice Quiz
• Percentage: 0%; Correct: 0; Total: 0 of 35
T0A02: How does current flowing through the body cause a health hazard?
By heating tissue
It disrupts the electrical functions of cells
It causes involuntary muscle contractions
All of these choices are correct
T0B02: What is a good precaution to observe before climbing an antenna tower?
Make sure that you wear a grounded wrist strap
Remove all tower grounding connections
Put on a climbing harness and safety glasses
All of the these choices are correct
T0C05: Why do exposure limits vary with frequency?
Lower frequency RF fields have more energy than higher frequency fields
Lower frequency RF fields do not penetrate the human body
Higher frequency RF fields are transient in nature
The human body absorbs more RF energy at some frequencies than at others
T1A06: What is the FCC Part 97 definition of telecommand?
An instruction bulletin issued by the FCC
A one-way radio transmission of measurements at a distance from the measuring instrument
A one-way transmission to initiate, modify or terminate functions of a device at a distance
An instruction from a VEC
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
T1C07: What may result when correspondence from the FCC is returned as undeliverable because the grantee failed to provide the correct mailing address?
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
T1D09: Under which of the following circumstances are amateur stations authorized to transmit signals related to broadcasting, program production, or news gathering, assuming no other means is available?
Only where such communications directly relate to the immediate safety of human life or protection of property
Only when broadcasting communications to or from the space shuttle.
Only where noncommercial programming is gathered and supplied exclusively to the National Public Radio network
Only when using amateur repeaters linked to the Internet
T1E03: Who must designate the station control operator?
The station licensee
The FCC
The frequency coordinator
The ITU
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
T2A01: What is the most common repeater frequency offset in the 2 meter band?
plus 500 kHz
plus or minus 600 kHz
minus 500 kHz
Only plus 600 kHz
T2B05: What determines the amount of deviation of an FM signal?
Both the frequency and amplitude of the modulating signal
The frequency of the modulating signal
The amplitude of the modulating signal
The relative phase of the modulating signal and the carrier
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
T3A03: What antenna polarization is normally used for long-distance weak-signal CW and SSB contacts using the VHF and UHF bands?
Right-hand circular
Left-hand circular
Horizontal
Vertical
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
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 scatter
D layer refraction
F2 layer refraction
Faraday rotation
T4A02: What could be used in place of a regular speaker to help you copy signals in a noisy area?
A video display
A low pass filter
A set of headphones
A boom microphone
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
T5A01: Electrical current is measured in which of the following units?
Volts
Watts
Ohms
Amperes
T5B09: What is the approximate amount of change, measured in decibels (dB), of a power increase from 5 watts to 10 watts?
2 dB
3 dB
5 dB
10 dB
T5C06: What is the abbreviation that refers to radio frequency signals of all types?
AF
HF
RF
VHF
T5D11: 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
T6A09: What electrical component is used to protect other circuit components from current overloads?
Fuse
Capacitor
Shield
Inductor
T6B10: Which semiconductor component has an emitter electrode?
Bipolar transistor
Field effect transistor
Silicon diode
Bridge rectifier
T6C06: What is component 6 in figure T2?
Resistor
Capacitor
Regulator IC
Transistor
T6D01: Which of the following devices or circuits changes an alternating current into a varying direct current signal?
Transformer
Rectifier
Amplifier
Reflector
T7A12: Which term describes the ability of a receiver to discriminate between multiple signals?
Tuning rate
Sensitivity
Selectivity
Noise floor
T7B10: What might be the problem if you receive a report that your audio signal through the repeater is distorted or unintelligible?
Your transmitter may be slightly off frequency
Your batteries may be running low
You could be in a bad location
All of these choices are correct
T7C06: What does an SWR reading of 4:1 mean?
An antenna loss of 4 dB
A good impedance match
An antenna gain of 4
An impedance mismatch
T7D02: What is the correct way to connect a voltmeter to a circuit?
In series with the circuit
In parallel with the circuit
In quadrature with the circuit
In phase with the circuit
T8A10: What is the typical bandwidth of analog fast-scan TV transmissions on the 70 cm band?
More than 10 MHz
About 6 MHz
About 3 MHz
About 1 MHz
T8B01: Who may be the control operator of a station communicating through an amateur satellite or space station?
Only an Amateur Extra Class operator
A General Class licensee or higher licensee who has a satellite operator certification
Only an Amateur Extra Class operator who is also an AMSAT member
Any amateur whose license privileges allow them to transmit on the satellite uplink frequency
T8C03: What popular operating activity involves contacting as many stations as possible during a specified period of time?
Contesting
Net operations
Public service events
Simulated emergency exercises
T8D02: What does the term APRS mean?
Automatic Position Reporting System
Associated Public Radio Station
Auto Planning Radio Set-up
Advanced Polar Radio System
T9A10: In which direction is the radiation strongest from a half-wave dipole antenna in free space?
Equally in all directions
Off the ends of the antenna
Broadside to the antenna
In the direction of the feedline
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
