Ham Technician License Practice Quiz
• Percentage: 0%; Correct: 0; Total: 0 of 35
T0A09: What kind of hazard is presented by a conventional 12-volt storage battery?
It emits ozone which can be harmful to the atmosphere
Shock hazard due to high voltage
Explosive gas can collect if not properly vented
All of these choices are correct
T0B06: What is the minimum safe distance from a power line to allow when installing an antenna?
Half the width of your property
The height of the power line above ground
1/2 wavelength at the operating frequency
So that if the antenna falls unexpectedly, no part of it can come closer than 10 feet to the power wires
T0C10: Why is duty cycle one of the factors used to determine safe RF radiation exposure levels?
It affects the average exposure of people to radiation
It affects the peak exposure of people to radiation
It takes into account the antenna feedline loss
It takes into account the thermal effects of the final amplifier
T1A01: For whom is the Amateur Radio Service intended?
Persons who have messages to broadcast to the public
Persons who need communications for the activities of their immediate family members, relatives and friends
Persons who need two-way communications for personal reasons
Persons who are interested in radio technique solely with a personal aim and without pecuniary interest
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
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
T1E11: Who does the FCC presume to be the control operator of an amateur station, unless documentation to the contrary is in the station records?
The station custodian
The third party participant
The person operating the station equipment
The station licensee
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
T2A05: What should you transmit when responding to a call of CQ?
CQ followed by the other station's call sign
Your call sign followed by the other station's call sign
The other station's call sign followed by your call sign
A signal report followed by your call sign
T2B11: What is the "Q" signal used to indicate that you are changing frequency?
QRU
QSY
QSL
QRZ
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
T3B03: What are the two components of a radio wave?
AC and DC
Voltage and current
Electric and magnetic fields
Ionizing and non-ionizing radiation
T3C10: What is the radio horizon?
The distance at which radio signals between two points are effectively blocked by the curvature of the Earth
The distance from the ground to a horizontally mounted antenna
The farthest point you can see when standing at the base of your antenna tower
The shortest distance between two points on the Earth's surface
T4A01: Which of the following is true concerning the microphone connectors on amateur transceivers?
All transceivers use the same microphone connector type
Some connectors include push-to-talk and voltages for powering the microphone
All transceivers using the same connector type are wired identically
Un-keyed connectors allow any microphone to be connected
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
T5A05: What is the electrical term for the electromotive force (EMF) that causes electron flow?
Voltage
Ampere-hours
Capacitance
Inductance
T5B10: What is the approximate amount of change, measured in decibels (dB), of a power decrease from 12 watts to 3 watts?
1 dB
3 dB
6 dB
9 dB
T5C10: How much power is being used in a circuit when the applied voltage is 12 volts DC and the current is 2.5 amperes?
4.8 watts
30 watts
14.5 watts
0.208 watts
T5D08: What is the current flowing through a 100-ohm resistor connected across 200 volts?
20,000 amperes
0.5 amperes
2 amperes
100 amperes
T6A08: What electrical component is used to connect or disconnect electrical circuits?
Zener Diode
Switch
Inductor
Variable resistor
T6B09: What are the names of the two electrodes of a diode?
Plus and minus
Source and drain
Anode and cathode
Gate and base
T6C12: What do the symbols on an electrical circuit schematic diagram represent?
Electrical components
Logic states
Digital codes
Traffic nodes
T6D08: Which of the following is used together with an inductor to make a tuned circuit?
Resistor
Zener diode
Potentiometer
Capacitor
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
T7B10: What might be the problem if you receive a report that your audio signal through the repeater is distorted or unintelligible?
Your transmitter may be slightly off frequency
Your batteries may be running low
You could be in a bad location
All of these choices are correct
T7C06: What does an SWR reading of 4:1 mean?
An antenna loss of 4 dB
A good impedance match
An antenna gain of 4
An impedance mismatch
T7D06: Which of the following might damage a multimeter?
Measuring a voltage too small for the chosen scale
Leaving the meter in the milliamps position overnight
Attempting to measure voltage when using the resistance setting
Not allowing it to warm up properly
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
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
T8C06: For what purpose is a temporary "1 by 1" format (letter-number-letter) call sign assigned?
To designate an experimental station
To honor a deceased relative who was a radio amateur
For operations in conjunction with an activity of special significance to the amateur community
All of these choices are correct
T8D01: Which of the following is an example of a digital communications method?
Packet
PSK31
MFSK
All of these choices are correct
T9A05: How would you change a dipole antenna to make it resonant on a higher frequency?
Lengthen it
Insert coils in series with radiating wires
Shorten it
Add capacity hats to the ends of the radiating wires
T9B08: Why should coax connectors exposed to the weather be sealed against water intrusion?
To prevent an increase in feedline loss
To prevent interference to telephones
To keep the jacket from becoming loose
All of these choices are correct
