Ham Technician License Practice Quiz


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

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

T0B09: Why should you avoid attaching an antenna to a utility pole?

The antenna will not work properly because of induced voltages
The utility company will charge you an extra monthly fee
The antenna could contact high-voltage power wires
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

T1A02: What agency regulates and enforces the rules for the Amateur Radio Service in the United States?

FEMA
The ITU
The FCC
Homeland Security

T1B06: Which 23 cm frequency is authorized to a Technician Class operator license?

2315 MHz
1296 MHz
3390 MHz
146.52 MHz

T1C06: From which of the following may an FCC-licensed amateur station transmit, in addition to places where the FCC regulates communications?

From within any country that belongs to the International Telecommunications Union
From within any country that is a member of the United Nations
From anywhere within in ITU Regions 2 and 3
From any vessel or craft located in international waters and documented or registered in the United States

T1D11: Which of the following types of communications are permitted in the Amateur Radio Service?

Brief transmissions to make station adjustments
Retransmission of entertainment programming from a commercial radio or TV station
Retransmission of entertainment material from a public radio or TV station
Communications on a regular basis that could reasonably be furnished alternatively through other radio services

T1E06: Under which of the following types of control is it permissible for the control operator to be at a location other than the control point?

Local control
Automatic control
Remote control
Indirect control

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

T2A10: What is a band plan, beyond the privileges established by the FCC?

A voluntary guideline for using different modes or activities within an amateur band
A mandated list of operating schedules
A list of scheduled net frequencies
A plan devised by a club to use a frequency band during a contest

T2B09: Which of the following methods is encouraged by the FCC when identifying your station when using phone?

Use of a phonetic alphabet
Send your call sign in CW as well as voice
Repeat your call sign three times
Increase your signal to full power when identifying

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

T3A07: What type of wave carries radio signals between transmitting and receiving stations?

Electromagnetic
Electrostatic
Surface acoustic
Magnetostrictive

T3B01: What is the name for the distance a radio wave travels during one complete cycle?

Wave speed
Waveform
Wavelength
Wave spread

T3C09: What is generally the best time for long-distance 10 meter band propagation?

During daylight hours
During nighttime hours
When there are coronal mass ejections
Whenever the solar flux is low

T4A06: Which of the following would be connected between a transceiver and computer in a packet radio station?

Transmatch
Mixer
Terminal node controller
Antenna

T4B02: Which of the following can be used to enter the operating frequency on a modern transceiver?

The keypad or VFO knob
The CTCSS or DTMF encoder
The Automatic Frequency Control
All of these choices are correct

T5A09: What is the name for a current that reverses direction on a regular basis?

Alternating current
Direct current
Circular current
Vertical current

T5B04: How many volts are equal to one microvolt?

One one-millionth of a volt
One million volts
One thousand kilovolts
One one-thousandth of a volt

T5C09: How much power is being used in a circuit when the applied voltage is 13.8 volts DC and the current is 10 amperes?

138 watts
0.7 watts
23.8 watts
3.8 watts

T5D03: What formula is used to calculate resistance in a circuit?

Resistance (R) equals voltage (E) multiplied by current (I)
Resistance (R) equals voltage (E) divided by current (I)
Resistance (R) equals voltage (E) added to current (I)
Resistance (R) equals voltage (E) minus current (I)

T6A06: What type of electrical component stores energy in a magnetic 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

T6C12: What do the symbols on an electrical circuit schematic diagram represent?

Electrical components
Logic states
Digital codes
Traffic nodes

T6D11: Which of the following is a common use of coaxial cable?

Carry dc power from a vehicle battery to a mobile radio
Carry RF signals between a radio and antenna
Secure masts, tubing, and other cylindrical objects on towers
Connect data signals from a TNC to a computer

T7A01: What is the function of a product detector?

Detect phase modulated signals
Demodulate FM signals
Detect CW and SSB signals
Combine speech and RF signals

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

T7C03: What, in general terms, is standing wave ratio (SWR)?

A measure of how well a load is matched to a transmission line
The ratio of high to low impedance in a feedline
The transmitter efficiency ratio
An indication of the quality of your station's ground connection

T7D10: What is probably happening when an ohmmeter, connected across a circuit, initially indicates a low resistance and then shows increasing resistance with time?

The ohmmeter is defective
The circuit contains a large capacitor
The circuit contains a large inductor
The circuit is a relaxation oscillator

T8A09: What is the approximate bandwidth of a VHF repeater FM phone signal?

Less than 500 Hz
About 150 kHz
Between 5 and 15 kHz
Between 50 and 125 kHz

T8B11: What is a commonly used method of sending signals to and from a digital satellite?

USB AFSK
PSK31
FM Packet
WSJT

T8C02: Which of these items would be useful for a hidden transmitter hunt?

Calibrated SWR meter
A directional antenna
A calibrated noise bridge
All of these choices are correct

T8D03: Which of the following is normally used when sending automatic location reports via amateur radio?

A connection to the vehicle speedometer
A WWV receiver
A connection to a broadcast FM sub-carrier receiver
A Global Positioning System receiver

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

6
50
112
236

T9B10: What electrical difference exists between the smaller RG-58 and larger RG-8 coaxial cables?

There is no significant difference between the two types
RG-58 cable has less loss at a given frequency
RG-8 cable has less loss at a given frequency
RG-58 cable can handle higher power levels