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
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
T0C01: What type of radiation are VHF and UHF radio signals?
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
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
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
T1D08: When may the control operator of an amateur station receive compensation for operating the station?
When engaging in communications on behalf of their employer
When the communication is incidental to classroom instruction at an educational institution
When re-broadcasting weather alerts during a RACES net
When notifying other amateur operators of the availability for sale or trade of apparatus
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
T1F11: To which foreign stations do the FCC rules authorize the transmission of non-emergency third party communications?
Any station whose government permits such communications
Those in ITU Region 2 only
Those in ITU Regions 2 and 3 only
Those in ITU Region 3 only
T2A11: What are the FCC rules regarding power levels used in the amateur bands?
Always use the maximum power allowed to ensure that you complete the contact
An amateur may use no more than 200 watts PEP to make an amateur contact
An amateur may use up to 1500 watts PEP on any amateur frequency
An amateur must use the minimum transmitter power necessary to carry out the desired communication
T2B02: What is the term used to describe the use of a sub-audible tone transmitted with normal voice audio to open the squelch of a receiver?
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?
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
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
T4A10: What is the source of a high-pitched whine that varies with engine speed in a mobile transceiver's receive audio?
The ignition system
The electric fuel pump
Anti-lock braking system controllers
T4B06: Which of the following controls could be used if the voice pitch of a single-sideband signal seems too high or low?
The AGC or limiter
The bandwidth selection
The tone squelch
The receiver RIT or clarifier
T5A10: Which term describes the rate at which electrical energy is used?
T5B10: What is the approximate amount of change, measured in decibels (dB), of a power decrease from 12 watts to 3 watts?
T5C11: How many amperes are flowing in a circuit when the applied voltage is 12 volts DC and the load is 120 watts?
T5D04: What is the resistance of a circuit in which a current of 3 amperes flows through a resistor connected to 90 volts?
T6A11: Which battery type is not rechargeable?
T6B01: What class of electronic components is capable of using a voltage or current signal to control current flow?
T6C02: What is component 1 in figure T1?
T6D05: What type of circuit controls the amount of voltage from a power supply?
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
T7B08: What should you do if a "Part 15" device in your neighbor's home is causing harmful interference to your amateur station?
Work with your neighbor to identify the offending device
Politely inform your neighbor about the rules that require him to stop using the device if it causes interference
Check your station and make sure it meets the standards of good amateur practice
All of these choices are correct
T7C09: Which of the following is the most common cause for failure of coaxial cables?
The velocity factor exceeds 1.0
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
T8A11: What is the approximate maximum bandwidth required to transmit a CW signal?
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
T8C03: What popular operating activity involves contacting as many stations as possible during a specified period of time?
Public service events
Simulated emergency exercises
T8D01: Which of the following is an example of a digital communications method?
All of these choices are correct
T9A04: What is a disadvantage of the "rubber duck" antenna supplied with most handheld radio transceivers?
It does not transmit or receive as effectively as a full-sized antenna
It transmits a circularly polarized signal
If the rubber end cap is lost it will unravel very quickly
All of these choices are correct
T9B04: What does an antenna tuner do?
It matches the antenna system impedance to the transceiver's output impedance
It helps a receiver automatically tune in weak stations
It allows an antenna to be used on both transmit and receive
It automatically selects the proper antenna for the frequency band being used