Ham Technician License Practice Quiz
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T0A12: What kind of hazard might exist in a power supply when it is turned off and disconnected?
Static electricity could damage the grounding system
Circulating currents inside the transformer might cause damage
The fuse might blow if you remove the cover
You might receive an electric shock from stored charge in large capacitors
T0B08: What is considered to be a proper grounding method for a tower?
A single four-foot ground rod, driven into the ground no more than 12 inches from the base
A ferrite-core RF choke connected between the tower and ground
Separate eight-foot long ground rods for each tower leg, bonded to the tower and each other
A connection between the tower base and a cold water pipe
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
T1A05: What is the FCC Part 97 definition of a space station?
Any multi-stage satellite
An Earth satellite that carries one of more amateur operators
An amateur station located less than 25 km above the Earth's surface
An amateur station located more than 50 km above the Earth's surface
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
T1C05: What must you do if you are operating on the 23 cm band and learn that you are interfering with a radiolocation station outside the United States?
Stop operating or take steps to eliminate the harmful interference
Nothing, because this band is allocated exclusively to the amateur service
Establish contact with the radiolocation station and ask them to change frequency
Change to CW mode, because this would not likely cause interference
T1D01: With which countries are FCC-licensed amateur stations prohibited from exchanging communications?
Any country whose administration has notified the ITU that it objects to such communications
Any country whose administration has notified the United Nations that it objects to such communications
Any country engaged in hostilities with another country
Any country in violation of the War Powers Act of 1934
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
T1F03: When is an amateur station required to transmit its assigned call sign?
At the beginning of each contact, and every 10 minutes thereafter
At least once during each transmission
At least every 15 minutes during and at the end of a contact
At least every 10 minutes during and at the end of a contact
T2A04: What is an appropriate way to call another station on a repeater if you know the other station's call sign?
Say "break, break" then say the station's call sign
Say the station's call sign then identify with your call sign
Say "CQ" three times then the other station's call sign
Wait for the station to call "CQ" then answer it
T2B11: What is the "Q" signal used to indicate that you are changing frequency?
QRU
QSY
QSL
QRZ
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
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
T4A04: Where must a filter be installed to reduce harmonic emissions?
Between the transmitter and the antenna
Between the receiver and the transmitter
At the station power supply
At the microphone
T4B09: Which of the following is an appropriate receive filter to select in order to minimize noise and interference for SSB reception?
500 Hz
1000 Hz
2400 Hz
5000 Hz
T5A07: Which of the following is a good electrical conductor?
Glass
Wood
Copper
Rubber
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
T5C04: What is the basic unit of inductance?
The coulomb
The farad
The henry
The ohm
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
T6A11: Which battery type is not rechargeable?
Nickel-cadmium
Carbon-zinc
Lead-acid
Lithium-ion
T6B02: What electronic component allows current to flow in only one direction?
Resistor
Fuse
Diode
Driven Element
T6C08: What is component 9 in figure T2?
Variable capacitor
Variable inductor
Variable resistor
Variable transformer
T6D02: What best describes a relay?
A switch controlled by an electromagnet
A current controlled amplifier
An optical sensor
A pass transistor
T7A08: Which of the following circuits combines a speech signal and an RF carrier?
Beat frequency oscillator
Discriminator
Modulator
Noise blanker
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
T7C11: What is a disadvantage of "air core" coaxial cable when compared to foam or solid dielectric types?
It has more loss per foot
It cannot be used for VHF or UHF antennas
It requires special techniques to prevent water absorption
It cannot be used at below freezing temperatures
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
T8A11: What is the approximate maximum bandwidth required to transmit a CW signal?
2.4 kHz
150 Hz
1000 Hz
15 kHz
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
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
T9A02: Which of the following is true regarding vertical antennas?
The magnetic field is perpendicular to the Earth
The electric field is perpendicular to the Earth
The phase is inverted
The phase is reversed
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
