Ham Technician License Practice Quiz

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T0A10: What can happen if a lead-acid storage battery is charged or discharged too quickly?

The battery could overheat and give off flammable gas or explode
The voltage can become reversed
The 'memory effect' will reduce the capacity of the battery
All of these choices are correct

T0B01: When should members of a tower work team wear a hard hat and safety glasses?

At all times except when climbing the tower
At all times except when belted firmly to the tower
At all times when any work is being done on the tower
Only when the tower exceeds 30 feet in height

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

T1B07: What amateur band are you using if you are transmitting on 223.50 MHz?

15 meter band
10 meter band
2 meter band
1.25 meter band

T1C01: Which type of call sign has a single letter in both the prefix and suffix?

Special event

T1D10: What is the meaning of the term broadcasting in the FCC rules for the amateur services?

Two-way transmissions by amateur stations
Transmission of music
Transmission of messages directed only to amateur operators
Transmissions intended for reception by the general public

T1E03: Who must designate the station control operator?

The station licensee
The frequency coordinator

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

T2A03: What is a common repeater frequency offset in the 70 cm band?

Plus or minus 5 MHz
Plus or minus 600 kHz
Minus 600 kHz
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

T2C11: What is meant by the term "check" in reference to a formal traffic message?

The check is a count of the number of words or word equivalents in the text portion of the message
The check is the value of a money order attached to the message
The check is a list of stations that have relayed the message
The check is a box on the message form that tells you the message was received

T3A11: Which part of the atmosphere enables the propagation of radio signals around the world?

The stratosphere
The troposphere
The ionosphere
The magnetosphere

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

T3C08: What causes "tropospheric ducting"?

Discharges of lightning during electrical storms
Sunspots and solar flares
Updrafts from hurricanes and tornadoes
Temperature inversions in the atmosphere

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

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

T5A11: What is the basic unit of electromotive force?

The volt
The watt
The ampere
The ohm

T5B06: If an ammeter calibrated in amperes is used to measure a 3000-milliampere current, what reading would it show?

0.003 amperes
0.3 amperes
3 amperes
3,000,000 amperes

T5C01: What is the ability to store energy in an electric field called?


T5D12: What is the voltage across a 10-ohm resistor if a current of 2 amperes flows through it?

8 volts
0.2 volts
12 volts
20 volts

T6A01: What electrical component is used to oppose the flow of current in a DC circuit?


T6B10: Which semiconductor component has an emitter electrode?

Bipolar transistor
Field effect transistor
Silicon diode
Bridge rectifier

T6C05: What is component 4 in figure T1?

Ground symbol

T6D07: Which of the following is commonly used as a visual indicator?

Zener diode
Bipolar transistor

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

T7B02: What is meant by fundamental overload in reference to a receiver?

Too much voltage from the power supply
Too much current from the power supply
Interference caused by very strong signals
Interference caused by turning the volume up too high

T7C04: What reading on an SWR meter indicates a perfect impedance match between the antenna and the feedline?

2 to 1
1 to 3
1 to 1
10 to 1

T7D09: What is the characteristic appearance of a "cold" solder joint?

Dark black spots
A bright or shiny surface
A grainy or dull surface
A greenish tint

T8A06: Which sideband is normally used for 10 meter HF, VHF and UHF single-sideband communications?

Upper sideband
Lower sideband
Suppressed sideband
Inverted sideband

T8B08: What is meant by the statement that a satellite is operating in "mode U/V"?

The satellite uplink is in the 15 meter band and the downlink is in the 10 meter band
The satellite uplink is in the 70 cm band and the downlink is in the 2 meter band
The satellite operates using ultraviolet frequencies
The satellite frequencies are usually variable

T8C01: Which of the following methods is used to locate sources of noise interference or jamming?

Doppler radar
Radio direction finding
Phase locking

T8D04: What type of transmission is indicated by the term NTSC?

A Normal Transmission mode in Static Circuit
A special mode for earth satellite uplink
An analog fast scan color TV signal
A frame compression scheme for TV signals

T9A09: What is the approximate length, in inches, of a 6 meter 1/2-wavelength wire dipole antenna?


T9B03: Why is coaxial cable used more often than any other feedline for amateur radio antenna systems?

It is easy to use and requires few special installation considerations
It has less loss than any other type of feedline
It can handle more power than any other type of feedline
It is less expensive than any other types of feedline