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. - G0A08

Which of the following steps must an amateur operator take to ensure compliance with RF safety regulations?

Select	Answer
A	All these choices are correct
B	Perform a routine RF exposure evaluation and prevent access to any identified high exposure areas
C	Post a copy of FCC Part 97.13 in the station
D	Notify neighbors within a 100-foot radius of the antenna of the existence of the station and power levels

2. - G0B09

Which of the following is true of an emergency generator installation?

Select	Answer
A	All these choices are correct
B	The generator must be insulated from ground
C	Fuel should be stored near the generator for rapid refueling in case of an emergency
D	The generator should be operated in a well-ventilated area

3. - G1A10

What portion of the 10-meter band is available for repeater use?

Select	Answer
A	The entire band
B	The portion above 29.5 MHz
C	The portion between 28.3 MHz and 28.5 MHz
D	The portion between 28.1 MHz and 28.2 MHz

4. - G1B10

What is the power limit for beacon stations?

Select	Answer
A	200 watts PEP output
B	10 watts PEP output
C	20 watts PEP output
D	100 watts PEP output

5. - G1C06

What is the limit for transmitter power on the 1.8 MHz band?

Select	Answer
A	1000 watts PEP output
B	200 watts PEP output
C	1500 watts PEP output
D	1200 watts PEP output

6. - G1D07

Volunteer Examiners are accredited by what organization?

Select	Answer
A	The Wireless Telecommunications Bureau
B	A Volunteer Examiner Coordinator
C	The Universal Licensing System
D	The Federal Communications Commission

7. - G1E12

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

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

8. - G2A09

Why do most amateur stations use lower sideband on the 160-, 75-, and 40-meter bands?

Select	Answer
A	Lower sideband is the only sideband legal on these frequency bands
B	Because it is fully compatible with an AM detector
C	It is commonly accepted amateur practice
D	Lower sideband is more efficient than upper sideband at these frequencies

9. - G2B04

When selecting a CW transmitting frequency, what minimum separation from other stations should be used to minimize interference to stations on adjacent frequencies?

Select	Answer
A	1 kHz to 3 kHz
B	3 kHz to 6 kHz
C	5 Hz to 50 Hz
D	150 Hz to 500 Hz

10. - G2C09

What does the Q signal “QSL” mean?

Select	Answer
A	We have already confirmed the contact
B	We have worked before
C	Send slower
D	I have received and understood

11. - G2D10

What is QRP operation?

Select	Answer
A	Low-power transmit operation
B	Traffic relay procedure net operation
C	Transmission using Quick Response Protocol
D	Remote piloted model control

12. - G2E15

Which of the following is a common location for FT8?

Select	Answer
A	Anywhere in the voice portion of the band
B	Anywhere in the CW portion of the band
C	Approximately 14.110 MHz to 14.113 MHz
D	Approximately 14.074 MHz to 14.077 MHz

13. - G3A09

How can high geomagnetic activity benefit radio communications?

Select	Answer
A	Increases signal strength for HF signals passing through the polar regions
B	Reduce long delayed echoes
C	Creates auroras that can reflect VHF signals
D	Improve HF long path propagation

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	World-wide propagation during daylight hours
D	Heavy distortion on signals due to photon absorption

15. - G3C05

Why is long-distance communication on the 40-, 60-, 80-, and 160-meter bands more difficult during the day?

Select	Answer
A	The D region absorbs signals at these frequencies during daylight hours
B	The F region absorbs signals at these frequencies during daylight hours
C	The F region is unstable during daylight hours
D	The E region is unstable during daylight hours

16. - G4A13

What is the purpose of using a receive attenuator?

Select	Answer
A	To reduce excessive audio level on strong signals
B	To reduce power consumption when operating from batteries
C	To prevent receiver overload from strong incoming signals
D	To reduce the transmitter power when driving a linear amplifier

17. - G4B08

What transmitter performance parameter does a two-tone test analyze?

Select	Answer
A	Percentage of frequency modulation
B	Linearity
C	Percentage of carrier phase shift
D	Percentage of suppression of the carrier and undesired sideband for SSB

18. - G4C01

Which of the following might be useful in reducing RF interference to audio frequency circuits?

Select	Answer
A	Forward-biased diode
B	Reverse-biased diode
C	Bypass inductor
D	Bypass capacitor

19. - G4D10

How close to the lower edge of a band’s phone segment should your displayed carrier frequency be when using 3 kHz wide LSB?

Select	Answer
A	At least 1 kHz above the edge of the segment
B	At least 3 kHz below the edge of the segment
C	At least 3 kHz above the edge of the segment
D	At least 1 kHz below the edge of the segment

20. - G4E11

What precaution should be taken when connecting a solar panel to a lithium iron phosphate battery?

Select	Answer
A	Ensure the battery is placed terminals-up
B	The solar panel must have a charge controller
C	Ground the solar panel outer metal framework
D	A series resistor must be in place

21. - G5A12

What occurs in an LC circuit at resonance?

Select	Answer
A	The circuit radiates all its energy in the form of radio waves
B	Inductive reactance and capacitive reactance cancel
C	Resistance is cancelled
D	Current and voltage are equal

22. - G5B11

What is the ratio of PEP to average power for an unmodulated carrier?

Select	Answer
A	1.414
B	2.00
C	1.00
D	0.707

23. - G5C09

What is the capacitance of three 100-microfarad capacitors connected in series?

Select	Answer
A	0.33 microfarads
B	300 microfarads
C	3.0 microfarads
D	33.3 microfarads

24. - G6A01

What is the minimum allowable discharge voltage for maximum life of a standard 12-volt lead-acid battery?

Select	Answer
A	8.5 volts
B	12 volts
C	10.5 volts
D	6 volts

25. - G6B03

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

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

26. - G7A06

What portion of the AC cycle is converted to DC by a full-wave rectifier?

Select	Answer
A	360 degrees
B	270 degrees
C	180 degrees
D	90 degrees

27. - G7B08

How is the efficiency of an RF power amplifier determined?

Select	Answer
A	Multiply the RF input power by the reciprocal of the RF output power
B	Divide the DC input power by the DC output power
C	Divide the RF output power by the DC input power
D	Add the RF input power to the DC output power

28. - G7C14

The bandwidth of a band-pass filter is measured between what two frequencies?

Select	Answer
A	Upper and lower half-power
B	Image and harmonic
C	Pole and zero
D	Cutoff and rolloff

29. - G8A11

What is the modulation envelope of an AM signal?

Select	Answer
A	The bandwidth of the modulated signal
B	The carrier frequency that contains the signal
C	Spurious signals that envelop nearby frequencies
D	The waveform created by connecting the peak values of the modulated signal

30. - G8B04

What is the stage in a VHF FM transmitter that generates a harmonic of a lower frequency signal to reach the desired operating frequency?

Select	Answer
A	Multiplier
B	Balanced converter
C	Reactance modulator
D	Mixer

31. - G8C01

On what band do amateurs share channels with the unlicensed Wi-Fi service?

Select	Answer
A	902 MHz
B	10.7 GHz
C	432 MHz
D	2.4 GHz

32. - G9A10

What standing wave ratio results from connecting a 50-ohm feed line to a 10-ohm resistive load?

Select	Answer
A	2:1
B	5:1
C	1:2
D	1:5

33. - G9B12

What is the approximate length for a 1/4 wave monopole antenna cut for 28.5 MHz?

Select	Answer
A	8 feet
B	21 feet
C	16 feet
D	11 feet

34. - G9C12

Which of the following is a characteristic of using a gamma match with a Yagi antenna?

Select	Answer
A	It is useful for matching multiband antennas
B	All these choices are correct
C	It does not require the driven element to be insulated from the boom
D	It does not require any inductors or capacitors

35. - G9D01

Which of the following antenna types will be most effective as a near vertical incidence skywave (NVIS) antenna for short-skip communications on 40 meters during the day?

Select	Answer
A	A vertical dipole placed at approximately 1/2 wavelength above the ground
B	A horizontal dipole placed between 1/10 and 1/4 wavelength above the ground
C	A horizontal dipole placed at approximately 1/2 wavelength above the ground
D	A vertical antenna placed between 1/4 and 1/2 wavelength above the ground