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	Perform a routine RF exposure evaluation and prevent access to any identified high exposure areas
B	All these choices are correct
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	Fuel should be stored near the generator for rapid refueling in case of an emergency
B	The generator should be operated in a well-ventilated area
C	The generator must be insulated from ground
D	All these choices are correct

3. - G1A09

Which of the following frequencies is within the General class portion of the 15-meter band?

Select	Answer
A	24900 kHz
B	14250 kHz
C	21300 kHz
D	18155 kHz

4. - G1B09

On what HF frequencies are automatically controlled beacons permitted?

Select	Answer
A	28.20 MHz to 28.30 MHz
B	21.08 MHz to 21.09 MHz
C	On any frequency if transmissions are in Morse code
D	On any frequency if power is less than 1 watt

5. - G1C04

Which of the following is required by the FCC rules when operating in the 60-meter band?

Select	Answer
A	You must keep a record of the date, time, frequency, power level, and stations worked
B	If you are using an antenna other than a dipole, you must keep a record of the gain of your antenna
C	You must keep a record of the manufacturer of your equipment and the antenna used
D	You must keep a record of all third-party traffic

6. - G1D01

Who may receive partial credit for the elements represented by an expired amateur radio license?

Select	Answer
A	Any person who previously held an amateur license issued by another country, but only if that country has a current reciprocal licensing agreement with the FCC
B	Anyone who held an FCC-issued amateur radio license that expired not less than 5 and not more than 15 years ago
C	Any person who can demonstrate that they once held an FCC-issued General, Advanced, or Amateur Extra class license that was not revoked by the FCC
D	Only persons who once held an FCC issued Novice, Technician, or Technician Plus license

7. - G1E12

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

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

8. - G2A12

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

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

9. - G2B02

What is the first thing you should do if you are communicating with another amateur station and hear a station in distress break in?

Select	Answer
A	Immediately decrease power to avoid interfering with the station in distress
B	Acknowledge the station in distress and determine what assistance may be needed
C	Inform your local emergency coordinator
D	Immediately cease all transmissions

10. - G2C07

When sending CW, what does a “C” mean when added to the RST report?

Select	Answer
A	Report was read from an S meter rather than estimated
B	100 percent copy
C	Key clicks
D	Chirpy or unstable signal

11. - G2D01

What is the Volunteer Monitor Program?

Select	Answer
A	Amateur volunteers who use their station equipment to help civil defense organizations in times of emergency
B	Amateur volunteers who conduct amateur licensing examinations
C	Amateur volunteers who are formally enlisted to monitor the airwaves for rules violations
D	Amateur volunteers who conduct frequency coordination for amateur VHF repeaters

12. - G2E04

Which of the following is good practice when choosing a transmitting frequency to answer a station calling CQ using FT8?

Select	Answer
A	Find a clear frequency during the same time slot as the calling station
B	Find a clear frequency during the alternate time slot to the calling station
C	Call on any frequency in the waterfall except the station’s frequency
D	Always call on the station’s frequency

13. - G3A10

What causes HF propagation conditions to vary periodically in a 26- to 28-day cycle?

Select	Answer
A	Cyclic variation in Earth’s radiation belts
B	Rotation of the Sun’s surface layers around its axis
C	The position of the Moon in its orbit
D	Long term oscillations in the upper atmosphere

14. - G3B08

What does MUF stand for?

Select	Answer
A	The Maximum Usable Frequency during a 24-hour period
B	The Minimum Usable Frequency for communications between two points
C	The Maximum Usable Frequency for communications between two points
D	The Minimum Usable Frequency during a 24-hour period

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

16. - G4A01

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

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

17. - G4B04

What signal source is connected to the vertical input of an oscilloscope when checking the RF envelope pattern of a transmitted signal?

Select	Answer
A	An external RF oscillator
B	The local oscillator of the transmitter
C	The attenuated RF output of the transmitter
D	The transmitter balanced mixer output

18. - G4C07

Why should soldered joints not be used in lightning protection ground connections?

Select	Answer
A	Solder flux will prevent a low conductivity connection
B	Solder has too high a dielectric constant to provide adequate lightning protection
C	A soldered joint will likely be destroyed by the heat of a lightning strike
D	All these choices are correct

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

20. - G4E03

Which of the following direct, fused power connections would be the best for a 100-watt HF mobile installation?

Select	Answer
A	To the battery using insulated heavy duty balanced transmission line
B	To the alternator or generator using heavy-gauge wire
C	To the alternator or generator using insulated heavy duty balanced transmission line
D	To the battery using heavy-gauge wire

21. - G5A10

Which of the following devices can be used for impedance matching at radio frequencies?

Select	Answer
A	A transformer
B	A Pi-network
C	All these choices are correct
D	A length of transmission line

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. - G5C05

Why is the primary winding wire of a voltage step-up transformer usually a larger size than that of the secondary winding?

Select	Answer
A	To prevent parasitic oscillations due to resistive losses in the primary
B	To improve the coupling between the primary and secondary
C	To ensure that the volume of the primary winding is equal to the volume of the secondary winding
D	To accommodate the higher current of the primary

24. - G6A10

Which element of a vacuum tube regulates the flow of electrons between cathode and plate?

Select	Answer
A	Screen grid
B	Control grid
C	Suppressor grid
D	Trigger electrode

25. - G6B01

What determines the performance of a ferrite core at different frequencies?

Select	Answer
A	Its thickness
B	The ratio of outer diameter to inner diameter
C	The composition, or “mix,” of materials used
D	Its conductivity

26. - G7A02

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

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

27. - G7B05

How many states does a 3-bit binary counter have?

Select	Answer
A	16
B	8
C	3
D	6

28. - G7C04

How is a product detector used?

Select	Answer
A	Used in a single sideband receiver to extract the modulated signal
B	Used in transmitter to perform frequency multiplication
C	Used in test gear to detect spurious mixing products
D	Used in an FM receiver to filter out unwanted sidebands

29. - G8A08

Which of the following is an effect of overmodulation?

Select	Answer
A	Insufficient audio
B	Frequency drift
C	Excessive bandwidth
D	Insufficient bandwidth

30. - G8B07

What is the frequency deviation for a 12.21 MHz reactance modulated oscillator in a 5 kHz deviation, 146.52 MHz FM phone transmitter?

Select	Answer
A	60 kHz
B	416.7 Hz
C	101.75 Hz
D	5 kHz

31. - G8C13

What is indicated on a waterfall display by one or more vertical lines on either side of a data mode or RTTY signal?

Select	Answer
A	Long path propagation
B	Insufficient modulation
C	Overmodulation
D	Backscatter propagation

32. - G9A09

What standing wave ratio results from connecting a 50-ohm feed line to a 200-ohm resistive load?

Select	Answer
A	2:1
B	4:1
C	1:2
D	1:4

33. - G9B12

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

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

34. - G9C08

What is meant by the “main lobe” of a directive antenna?

Select	Answer
A	The point of maximum current in a radiating antenna element
B	The maximum voltage standing wave point on a radiating element
C	The direction of maximum radiated field strength from the antenna
D	The magnitude of the maximum vertical angle of radiation

35. - G9D12

What is the common name of a dipole with a single central support?

Select	Answer
A	Inverted V
B	Inverted L
C	Lazy H
D	Sloper