US Amateur Radio - General (Element 3, 2023-2027) Practice Test

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US Amateur Radio - General (Element 3, 2023-2027) Practice Test

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1. - G0A06

What must you do if your station fails to meet the FCC RF exposure exemption criteria?

Select	Answer
A	Use an FCC-approved band-pass filter
B	Contact the FCC for permission to transmit
C	Perform an RF exposure evaluation in accordance with World Meteorological Organization guidelines
D	Perform an RF Exposure Evaluation in accordance with FCC OET Bulletin 65

2. - G0B10

Which of the following is a danger from lead-tin solder?

Select	Answer
A	High voltages can cause lead-tin solder to disintegrate suddenly
B	Lead can contaminate food if hands are not washed carefully after handling the solder
C	Tin in the solder can “cold flow,” causing shorts in the circuit
D	RF energy can convert the lead into a poisonous gas

3. - G1A07

On which amateur frequencies in the 10-meter band may stations with a General class control operator transmit CW emissions?

Select	Answer
A	28.000 MHz to 28.025 MHz only
B	28.000 MHz to 28.300 MHz only
C	The entire band
D	28.025 MHz to 28.300 MHz only

4. - G1B08

When is it permissible to communicate with amateur stations in countries outside the areas administered by the Federal Communications Commission?

Select	Answer
A	Only when the foreign country has a formal third-party agreement filed with the FCC
B	Only when the contact is with amateurs licensed by a country which is a member of the International Amateur Radio Union, or by a territory possessed by such a country
C	Only when the contact is with amateurs licensed by a country which is a member of the United Nations, or by a territory possessed by such a country
D	When the contact is with amateurs in any country except those whose administrations have notified the ITU that they object to such communications

5. - G1C08

What is the maximum symbol rate permitted for RTTY or data emission transmitted at frequencies below 28 MHz?

Select	Answer
A	19.6 kilobaud
B	300 baud
C	1200 baud
D	56 kilobaud

6. - G1D02

What license examinations may you administer as an accredited Volunteer Examiner holding a General class operator license?

Select	Answer
A	Technician only
B	None, only Amateur Extra class licensees may be accredited
C	General and Technician
D	Amateur Extra, General, and Technician

7. - G1E12

When may third-party messages be transmitted via remote control?

Select	Answer
A	Only when the message is intended for third parties in areas where licensing is controlled by the FCC
B	Under no circumstances except for emergencies
C	Under any circumstances in which third party messages are permitted by FCC rules
D	Only when the message is intended for licensed radio amateurs

8. - G2A12

What control is typically adjusted for proper ALC setting on a single sideband transceiver?

Select	Answer
A	RF clipping level
B	Antenna inductance or capacitance
C	Transmit audio or microphone gain
D	Attenuator level

9. - G2B10

Which of the following is good amateur practice for net management?

Select	Answer
A	All these choices are correct
B	Always use multiple sets of phonetics during check-in
C	Transmit the full net roster at the beginning of every session
D	Have a backup frequency in case of interference or poor conditions

10. - G2C10

What does the Q signal “QRN” mean?

Select	Answer
A	I am troubled by static
B	Send more slowly
C	Stop sending
D	Zero beat my signal

11. - G2D03

What procedure may be used by Volunteer Monitors to localize a station whose continuous carrier is holding a repeater on in their area?

Select	Answer
A	Compare signal strengths between the input and output of the repeater
B	All these choices are correct
C	Compare vertical and horizontal signal strengths on the input frequency
D	Compare beam headings on the repeater input from their home locations with that of other Volunteer Monitors

12. - G2E14

What could be wrong if you cannot decode an RTTY or other FSK signal even though it is apparently tuned in properly?

Select	Answer
A	You may be listening on the wrong sideband
B	You may have selected the wrong baud rate
C	The mark and space frequencies may be reversed
D	All these choices are correct

13. - G3A04

Which of the following are the least reliable bands for long-distance communications during periods of low solar activity?

Select	Answer
A	15 meters, 12 meters, and 10 meters
B	60 meters and 40 meters
C	80 meters and 160 meters
D	30 meters and 20 meters

14. - G3B12

Which of the following is typical of the lower HF frequencies during the summer?

Select	Answer
A	High levels of atmospheric noise or static
B	Poor propagation at any time of day
C	Heavy distortion on signals due to photon absorption
D	World-wide propagation during daylight hours

15. - G3C04

What does the term “critical angle” mean, as applied to radio wave propagation?

Select	Answer
A	The short path azimuth of a distant station
B	The lowest takeoff angle that will return a radio wave to Earth under specific ionospheric conditions
C	The highest takeoff angle that will return a radio wave to Earth under specific ionospheric conditions
D	The long path azimuth of a distant station

16. - G4A01

What is the purpose of the notch filter found on many HF transceivers?

Select	Answer
A	To eliminate receiver interference from impulse noise sources
B	To restrict the transmitter voice bandwidth
C	To reduce interference from carriers in the receiver passband
D	To remove interfering splatter generated by signals on adjacent frequencies

17. - G4B13

Which of the following can be measured with an antenna analyzer?

Select	Answer
A	Front-to-back ratio of an antenna
B	Power output from a transmitter
C	Impedance of coaxial cable
D	Gain of a directional antenna

18. - G4C06

What is a possible effect of a resonant ground connection?

Select	Answer
A	Overheating of ground straps
B	A ground loop
C	High RF voltages on the enclosures of station equipment
D	Corrosion of the ground rod

19. - G4D01

What is the purpose of a speech processor in a transceiver?

Select	Answer
A	Prevent distortion of voice signals
B	Increase the apparent loudness of transmitted voice signals
C	Decrease high-frequency voice output to prevent out-of-band operation
D	Increase transmitter bass response for more natural-sounding SSB signals

20. - G4E08

In what configuration are the individual cells in a solar panel connected together?

Select	Answer
A	Bypass
B	Shunt
C	Series-parallel
D	Full-wave bridge

21. - G5A03

Which of the following is opposition to the flow of alternating current in an inductor?

Select	Answer
A	Admittance
B	Reactance
C	Reluctance
D	Conductance

22. - G5B09

What is the RMS voltage of a sine wave with a value of 17 volts peak?

Select	Answer
A	24 volts
B	8.5 volts
C	34 volts
D	12 volts

23. - G5C01

What causes a voltage to appear across the secondary winding of a transformer when an AC voltage source is connected across its primary winding?

Select	Answer
A	Displacement current coupling
B	Mutual capacitance
C	Mutual inductance
D	Capacitive coupling

24. - G6A03

What is the approximate forward threshold voltage of a germanium diode?

Select	Answer
A	0.7 volts
B	1.0 volts
C	0.1 volt
D	0.3 volts

25. - G6B03

Which of the following is an advantage of CMOS integrated circuits compared to TTL integrated circuits?

Select	Answer
A	High power handling capability
B	Better suited for power supply regulation
C	Low power consumption
D	Better suited for RF amplification

26. - G7A02

Which of the following components are used in a power supply filter network?

Select	Answer
A	All these choices are correct
B	Transformers and transducers
C	Capacitors and inductors
D	Diodes

27. - G7B10

Which of the following describes a linear amplifier?

Select	Answer
A	An amplifier in which the output preserves the input waveform
B	A Class C high efficiency amplifier
C	An amplifier used as a frequency multiplier
D	Any RF power amplifier used in conjunction with an amateur transceiver

28. - G7C05

Which of the following is characteristic of a direct digital synthesizer (DDS)?

Select	Answer
A	Pure sine wave output
B	Extremely narrow tuning range
C	Relatively high-power output
D	Variable output frequency with the stability of a crystal oscillator

29. - G8A06

Which of the following is characteristic of QPSK31?

Select	Answer
A	It is sideband sensitive
B	Its bandwidth is approximately the same as BPSK31
C	Its encoding provides error correction
D	All these choices are correct

30. - G8B06

What is the total bandwidth of an FM phone transmission having 5 kHz deviation and 3 kHz modulating frequency?

Select	Answer
A	16 kHz
B	8 kHz
C	3 kHz
D	5 kHz

31. - G8C08

Which of the following statements is true about PSK31?

Select	Answer
A	Higher power is needed as compared to RTTY for similar error rates
B	Upper case letters use longer Varicode bit sequences and thus slow down transmission
C	Upper case letters are sent with more power
D	Error correction is used to ensure accurate message reception

32. - G9A06

In what units is RF feed line loss usually expressed?

Select	Answer
A	Decibels per 1,000 feet
B	Ohms per 100 feet
C	Decibels per 100 feet
D	Ohms per 1,000 feet

33. - G9B06

Where should the radial wires of a ground-mounted vertical antenna system be placed?

Select	Answer
A	Parallel to the antenna element
B	As high as possible above the ground
C	At the center of the antenna
D	On the surface or buried a few inches below the ground

34. - G9C01

Which of the following would increase the bandwidth of a Yagi antenna?

Select	Answer
A	Loading coils in series with the element
B	Closer element spacing
C	Larger-diameter elements
D	Tapered-diameter elements

35. - G9D11

Which of the following is a disadvantage of multiband antennas?

Select	Answer
A	They present low impedance on all design frequencies
B	They must be fed with open wire line
C	They must be used with an antenna tuner
D	They have poor harmonic rejection