Which of the following is part of the Basis and Purpose of the Amateur Radio Service?

1. AProviding personal radio communications for as many citizens as possible
2. BProviding communications for international contesting
3. CAdvancing skills in the technical and communication phases of the radio art
4. DAll these choices are correct

Which of the following frequency ranges are available for phone operation by Technician licensees?

1. A28.050 MHz to 28.150 MHz
2. B28.100 MHz to 28.300 MHz
3. C28.300 MHz to 28.500 MHz
4. D28.500 MHz to 28.600 MHz

Who may select a desired call sign under the vanity call sign rules?

1. AOnly a licensed amateur with a General or Amateur Extra Class license
2. BOnly a licensed amateur with an Amateur Extra Class license
3. COnly a licensed amateur who has been licensed continuously for more than 10 years
4. DAny licensed amateur

When may an amateur station transmit without identifying on the air?

1. AWhen the transmissions are of a brief nature to make station adjustments
2. BWhen the transmissions are unmodulated
3. CWhen the transmitted power level is below 0.1 watt
4. DWhen transmitting signals to control model craft

Which of the following is an example of remote control as defined in Part 97?

1. AA software defined radio (SDR)
2. BOperating the station over the internet
3. CControlling a model aircraft, boat, or car by amateur radio
4. DEarth-Moon-Earth (EME) communication

What language must you use for identification when using a phone emission?

1. AAny language recognized by the United Nations
2. BAny language recognized by the ITU
3. CEnglish
4. DEnglish, French, or Spanish

What is an appropriate way to call another station on a repeater if you know the other station's call sign?

1. ASay "break, break," then the other station's call sign, followed by your call sign
2. BSay the station's call sign, then identify with your call sign
3. CSay "CQ" three times, then the other station's call sign, followed by your call sign
4. DWait for the station to call CQ, then answer with your call sign

What is the purpose of the reverse function on a VHF/UHF transceiver?

1. ATo reduce power output
2. BTo increase power output
3. CTo listen on a repeater's input frequency
4. DTo listen on a repeater's output frequency

What technique is used to ensure that voice messages containing unusual words are received correctly?

1. ASend the words by voice and Morse code
2. BUse the Q-code "QSR" to ask the receiving station to repeat the words back
3. CSpell the words using a standard phonetic alphabet
4. DAll these choices are correct

Which of the following results from the fact that signals propagated by the ionosphere are elliptically polarized?

1. ADigital modes are unusable
2. BEither vertically or horizontally polarized antennas may be used for transmission or reception
3. CFM voice is unusable
4. DBoth the transmitting and receiving antennas must be of the same polarization

What is the relationship between wavelength and frequency?

1. AWavelength gets longer as frequency increases
2. BWavelength gets shorter as frequency increases
3. CWavelength is constant at all frequencies
4. DWavelength and frequency increase as path length increases

Why is the radio horizon for VHF and UHF signals more distant than the visual horizon?

1. ARadio signals move somewhat faster than the speed of light
2. BRadio waves are not blocked by dust particles
3. CThe atmosphere refracts radio waves slightly
4. DRadio waves are blocked by dust particles

Where should the negative power return of a mobile transceiver be connected in a vehicle?

1. AAt the 12-volt battery chassis ground
2. BTo the shell of the power connector
3. CTo any metal part of the vehicle
4. DThrough the transceiver's mounting bracket

What does the scanning function of an FM transceiver do?

1. AChecks incoming signal deviation
2. BPrevents interference to nearby repeaters
3. CTunes through a range of frequencies to check for activity
4. DTunes through a range of frequencies to determine the antenna's resonant frequency

What type of current flow is opposed by resistance?

1. ADirect current
2. BAlternating current
3. CRF current
4. DAll these choices are correct

Which is equal to 3.525 MHz?

1. A0.003525 kHz
2. B35.25 kHz
3. C3525 kHz
4. D3,525,000 kHz

What is the unit of impedance?

1. AVolt
2. BAmpere
3. CCoulomb
4. DOhm

What is the resistance of a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?

1. A18 ohms
2. B0.125 ohms
3. C8 ohms
4. D13.5 ohms

What type of component is often used as an adjustable volume control?

1. AFixed resistor
2. BPower resistor
3. CPotentiometer
4. DTransformer

Which of these components can be used as an electronic switch?

1. AVaristor
2. BPotentiometer
3. CTransistor
4. DThermistor

What is component 9 in figure T-2?

1. AVariable capacitor
2. BVariable inductor
3. CVariable resistor
4. DVariable transformer

What is the name of a device that combines several semiconductors and other components into one package?

1. ATransducer
2. BMulti-pole relay
3. CIntegrated circuit
4. DTransformer

Which term describes the ability of a receiver to detect the presence of a signal?

1. ARF gain
2. BSensitivity
3. CSelectivity
4. DTotal Harmonic Distortion

Which of the following might reduce interference by an amateur station to a non-amateur over-the-air radio receiver?

1. ABlock the amateur signal with a filter at the antenna input of the affected receiver
2. BBlock the interfering signal with a filter on the amateur transmitter
3. CSwitch the transmitter from FM to SSB
4. DSwitch the transmitter to a narrow-band mode

Which of the following is used to determine if an antenna is resonant at the desired operating frequency?

1. AA VTVM
2. BAn antenna analyzer
3. CA Q meter
4. DA frequency counter

Which of the following can damage a multimeter?

1. AAttempting to measure resistance using the voltage setting
2. BFailing to connect one of the probes to ground
3. CAttempting to measure voltage when using the resistance setting
4. DNot allowing it to warm up properly

Which of the following signal types has the narrowest bandwidth?

1. AFM voice
2. BSSB voice
3. CCW
4. DSlow-scan TV

What is Doppler shift in reference to satellite communications?

1. AA change in the satellite orbit
2. BA mode where the satellite receives signals on one band and transmits on another
3. CAn observed change in signal frequency caused by relative motion between the satellite and Earth station
4. DA special digital communications mode for some satellites

Which of the following is good practice when contacting another station in a contest?

1. ASigning only the last two letters of your call if there are many other stations calling
2. BContacting the station twice to be sure that you are in his log
3. CSending only the minimum information needed for proper identification and the contest exchange
4. DAdding "Please copy" before your exchange

Which of the following operating activities is supported by digital mode software in the WSJT-X software suite?

1. AEarth-Moon-Earth
2. BWeak signal propagation beacons
3. CMeteor scatter
4. DAll these choices are correct

Which of the following types of antennas offers the greatest gain?

1. A5/8 wave vertical
2. BIsotropic
3. CJ pole
4. DYagi

What happens as the frequency of a signal in coaxial cable is increased?

1. AThe characteristic impedance decreases
2. BThe loss decreases
3. CThe characteristic impedance increases
4. DThe loss increases

What hazard exists when rapidly charging or discharging an unprotected battery?

1. AOverheating or out-gassing
2. BExcess output ripple
3. CElectric shock
4. DOvervoltage

Which of the following is true when installing grounding conductors used for lightning protection?

1. AUse only non-insulated wire
2. BWires must be carefully routed with precise right-angle bends
3. CSharp bends must be avoided
4. DCommon grounds must be avoided

Why is duty cycle one of the factors used to determine safe RF radiation exposure levels?

1. AIt affects the average exposure to radiation
2. BIt affects the peak exposure to radiation
3. CIt takes into account the antenna feed line loss
4. DIt takes into account the thermal effects of the final amplifier