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
T0B11: Which of the following establishes grounding requirements for an amateur radio tower or antenna?
FCC Part 97 Rules
Local electrical codes
FAA tower lighting regulations
Underwriters Laboratories' recommended practices
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
T1B01: What is the ITU?
An agency of the United States Department of Telecommunications Management
A United Nations agency for information and communication technology issues
An independent frequency coordination agency
A department of the FCC
T1C08: What is the normal term for an FCC-issued primary station/operator license grant?
Five years
Life
Ten years
Twenty years
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
T1E03: Who must designate the station control operator?
The station licensee
The FCC
The frequency coordinator
The ITU
T1F01: What type of identification is being used when identifying a station on the air as 'Race Headquarters'?
Tactical call
Self-assigned designator
SSID
Broadcast station
T2A06: What must an amateur operator do when making on-air transmissions to test equipment or antennas?
Properly identify the transmitting station
Make test transmissions only after 10:00 p.m. local time
Notify the FCC of the test transmission
State the purpose of the test during the test procedure
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
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
T3A11: Which part of the atmosphere enables the propagation of radio signals around the world?
The stratosphere
The troposphere
The ionosphere
The magnetosphere
T3B09: What are the frequency limits of the UHF spectrum?
30 to 300 kHz
30 to 300 MHz
300 to 3000 kHz
300 to 3000 MHz
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
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
T5A10: Which term describes the rate at which electrical energy is used?
Resistance
Current
Power
Voltage
T5B07: If a frequency readout calibrated in megahertz shows a reading of 3.525 MHz, what would it show if it were calibrated in kilohertz?
0.003525 kHz
35.25 kHz
3525 kHz
3,525,000 kHz
T5C08: What is the formula used to calculate electrical power in a DC circuit?
Power (P) equals voltage (E) multiplied by current (I)
Power (P) equals voltage (E) divided by current (I)
Power (P) equals voltage (E) minus current (I)
Power (P) equals voltage (E) plus current (I)
T5D01: What formula is used to calculate current in a circuit?
Current (I) equals voltage (E) multiplied by resistance (R)
Current (I) equals voltage (E) divided by resistance (R)
Current (I) equals voltage (E) added to resistance (R)
Current (I) equals voltage (E) minus resistance (R)
T6A03: What electrical parameter is controlled by a potentiometer?
Inductance
Resistance
Capacitance
Field strength
T6B12: What is the term that describes a transistor's ability to amplify a signal?
Gain
Forward resistance
Forward voltage drop
On resistance
T6C08: What is component 9 in figure T2?
Variable capacitor
Variable inductor
Variable resistor
Variable transformer
T6D05: What type of circuit controls the amount of voltage from a power supply?
Regulator
Oscillator
Filter
Phase inverter
T7A10: What device increases the low-power output from a handheld transceiver?
A voltage divider
An RF power amplifier
An impedance network
A voltage regulator
T7B04: What is the most likely cause of interference to a non-cordless telephone from a nearby transmitter?
Harmonics from the transmitter
The telephone is inadvertently acting as a radio receiver
Poor station grounding
Improper transmitter adjustment
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
T7D08: Which of the following types of solder is best for radio and electronic use?
Acid-core solder
Silver solder
Rosin-core solder
Aluminum solder
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
T8B02: How much transmitter power should be used on the uplink frequency of an amateur satellite or space station?
The maximum power of your transmitter
The minimum amount of power needed to complete the contact
No more than half the rating of your linear amplifier
Never more than 1 watt
T8C10: How do you select a specific IRLP node when using a portable transceiver?
Choose a specific CTCSS tone
Choose the correct DSC tone
Access the repeater autopatch
Use the keypad to transmit the IRLP node ID
T8D08: Which of the following may be included in packet transmissions?
A check sum which permits error detection
A header which contains the call sign of the station to which the information is being sent
Automatic repeat request in case of error
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
T9B02: What is the impedance of the most commonly used coaxial cable in typical amateur radio installations?
8 ohms
50 ohms
600 ohms
12 ohms
