Ham Technician License Practice Quiz


• Percentage: 0%; Correct: 0; Total: 0 of 35

T0A01: Which is a commonly accepted value for the lowest voltage that can cause a dangerous electric shock?

12 volts
30 volts
120 volts
300 volts

T0B07: Which of the following is an important safety rule to remember when using a crank-up tower?

This type of tower must never be painted
This type of tower must never be grounded
This type of tower must never be climbed unless it is in the fully retracted position
All of these choices are correct

T0C11: What is meant by "duty cycle" when referring to RF exposure?

The difference between lowest usable output and maximum rated output power of a transmitter
The difference between PEP and average power of an SSB signal
The ratio of on-air time to total operating time of a transmitted signal
The amount of time the operator spends transmitting

T1A08: Which of the following entities recommends transmit/receive channels and other parameters for auxiliary and repeater stations?

Frequency Spectrum Manager
Frequency Coordinator
FCC Regional Field Office
International Telecommunications Union

T1B09: Why should you not set your transmit frequency to be exactly at the edge of an amateur band or sub-band?

To allow for calibration error in the transmitter frequency display
So that modulation sidebands do not extend beyond the band edge
To allow for transmitter frequency drift
All of these choices are correct

T1C04: When are you allowed to operate your amateur station in a foreign country?

When the foreign country authorizes it
When there is a mutual agreement allowing third party communications
When authorization permits amateur communications in a foreign language
When you are communicating with non-licensed individuals in another country

T1D06: Which of the following types of transmissions are prohibited?

Transmissions that contain obscene or indecent words or language
Transmissions to establish one-way communications
Transmissions to establish model aircraft control
Transmissions for third party communications

T1E07: When the control operator is not the station licensee, who is responsible for the proper operation of the station?

All licensed amateurs who are present at the operation
Only the station licensee
Only the control operator
The control operator and the station licensee are equally responsible

T1F13: When must the station licensee make the station and its records available for FCC inspection?

Any time upon request by an official observer
Any time upon request by an FCC representative
30 days prior to renewal of the station license
10 days before the first transmission

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

T2B10: What is the "Q" signal used to indicate that you are receiving interference from other stations?

QRM
QRN
QTH
QSB

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

T3B04: How fast does a radio wave travel through free space?

At the speed of light
At the speed of sound
Its speed is inversely proportional to its wavelength
Its speed increases as the frequency increases

T3C11: Why do VHF and UHF radio signals usually travel somewhat farther than the visual line of sight distance between two stations?

Radio signals move somewhat faster than the speed of light
Radio waves are not blocked by dust particles
The Earth seems less curved to radio waves than to light
Radio waves are blocked by dust particles

T4A08: Which type of conductor is best to use for RF grounding?

Round stranded wire
Round copper-clad steel wire
Twisted-pair cable
Flat strap

T4B10: Which of the following is an appropriate receive filter to select in order to minimize noise and interference for CW reception?

500 Hz
1000 Hz
2400 Hz
5000 Hz

T5A03: What is the name for the flow of electrons in an electric circuit?

Voltage
Resistance
Capacitance
Current

T5B08: How many microfarads are 1,000,000 picofarads?

0.001 microfarads
1 microfarad
1000 microfarads
1,000,000,000 microfarads

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

Inductance
Resistance
Tolerance
Capacitance

T5D02: What formula is used to calculate voltage in a circuit?

Voltage (E) equals current (I) multiplied by resistance (R)
Voltage (E) equals current (I) divided by resistance (R)
Voltage (E) equals current (I) added to resistance (R)
Voltage (E) equals current (I) minus resistance (R)

T6A04: What electrical component stores energy in an electric field?

Resistor
Capacitor
Inductor
Diode

T6B04: Which of these components is made of three layers of semiconductor material?

Alternator
Bipolar junction transistor
Triode
Pentagrid converter

T6C06: What is component 6 in figure T2?

Resistor
Capacitor
Regulator IC
Transistor

T6D10: What is the function of component 2 in Figure T1?

Give off light when current flows through it
Supply electrical energy
Control the flow of current
Convert electrical energy into radio waves

T7A11: Which of the following circuits demodulates FM signals?

Limiter
Discriminator
Product detector
Phase inverter

T7B01: What can you do if you are told your FM handheld or mobile transceiver is over deviating?

Talk louder into the microphone
Let the transceiver cool off
Change to a higher power level
Talk farther away from the microphone

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

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

T8A02: What type of modulation is most commonly used for VHF packet radio transmissions?

FM
SSB
AM
Spread Spectrum

T8B10: What do the initials LEO tell you about an amateur satellite?

The satellite battery is in Low Energy Operation mode
The satellite is performing a Lunar Ejection Orbit maneuver
The satellite is in a Low Earth Orbit
The satellite uses Light Emitting Optics

T8C09: How might you obtain a list of active nodes that use VoIP?

From the FCC Rulebook
From your local emergency coordinator
From a repeater directory
From the local repeater frequency coordinator

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

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

6
50
112
236

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