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

Anonymous User

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

Logging in (or registering) will help the system to select questions that you need to focus on.

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	Notify neighbors within a 100-foot radius of the antenna of the existence of the station and power levels
D	Post a copy of FCC Part 97.13 in the station

2. - G0B06

Which of the following is covered by the National Electrical Code?

Select	Answer
A	Acceptable modulation limits
B	RF exposure limits of the human body
C	Electrical safety of the station
D	Acceptable bandwidth limits

3. - G1A03

On which of the following bands is image transmission prohibited?

Select	Answer
A	160 meters
B	12 meters
C	20 meters
D	30 meters

4. - G1B04

Which of the following transmissions is permitted for all amateur stations?

Select	Answer
A	Encrypted messages, if not intended to facilitate a criminal act
B	Automatic retransmission of other amateur signals by any amateur station
C	Unidentified transmissions of less than 10 seconds duration for test purposes only
D	Occasional retransmission of weather and propagation forecast information from US government stations

5. - G1C01

What is the maximum transmitter power an amateur station may use on 10.140 MHz?

Select	Answer
A	1500 watts PEP output
B	200 watts PEP output
C	1000 watts PEP output
D	2000 watts PEP output

6. - G1D06

Until an upgrade to General class is shown in the FCC database, when must a Technician licensee identify with “AG” after their call sign?

Select	Answer
A	Whenever they operate using Technician frequency privileges
B	Whenever they operate on any amateur frequency
C	A special identifier is not required if their General class license application has been filed with the FCC
D	Whenever they operate using General class frequency privileges

7. - G1E11

On what bands may automatically controlled stations transmitting RTTY or data emissions communicate with other automatically controlled digital stations?

Select	Answer
A	Anywhere in the non-phone segments of the 10-meter or shorter wavelength bands
B	Anywhere in the 6-meter or shorter wavelength bands, and in limited segments of some of the HF bands
C	On any band segment where digital operation is permitted
D	Only in the non-phone Extra Class segments of the bands

8. - G2A12

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

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

9. - G2B01

Which of the following is true concerning access to frequencies?

Select	Answer
A	Contest operations should yield to non-contest use of frequencies
B	Except during emergencies, no amateur station has priority access to any frequency
C	Nets have priority
D	QSOs in progress have priority

10. - G2C02

What should you do if a CW station sends “QRS?”

Select	Answer
A	Increase your power
B	Change frequency
C	Repeat everything twice
D	Send slower

11. - G2D05

Which of the following indicates that you are looking for an HF contact with any station?

Select	Answer
A	Transmit an unmodulated carried for approximately 10 seconds, followed by “this is” and your call sign, and pause to listen -- repeat as necessary
B	Sign your call sign once, followed by the words “listening for a call” -- if no answer, change frequency and repeat
C	Repeat “CQ” a few times, followed by “this is,” then your call sign a few times, then pause to listen, repeat as necessary
D	Say “QTC” followed by “this is” and your call sign -- if no answer, change frequency and repeat

12. - G2E01

Which mode is normally used when sending RTTY signals via AFSK with an SSB transmitter?

Select	Answer
A	LSB
B	DSB
C	USB
D	CW

13. - G3A14

How is long distance radio communication usually affected by the charged particles that reach Earth from solar coronal holes?

Select	Answer
A	HF communication is disturbed
B	VHF/UHF ducting is disturbed
C	HF communication is improved
D	VHF/UHF ducting is improved

14. - G3B06

What usually happens to radio waves with frequencies below the LUF?

Select	Answer
A	They pass through the ionosphere
B	They are refracted and trapped in the ionosphere to circle Earth
C	They are attenuated before reaching the destination
D	They are refracted back to Earth

15. - G3C06

What is a characteristic of HF scatter?

Select	Answer
A	Signals have a fluttering sound
B	Scatter propagation occurs only at night
C	There are very large, sudden swings in signal strength
D	Phone signals have high intelligibility

16. - G4A13

What is the purpose of using a receive attenuator?

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

17. - G4B07

What signals are used to conduct a two-tone test?

Select	Answer
A	Two audio frequency range square wave signals of equal amplitude
B	Two swept frequency tones
C	Two non-harmonically related audio signals
D	Two audio signals of the same frequency shifted 90 degrees

18. - G4C06

What is a possible effect of a resonant ground connection?

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

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

20. - G4E10

Why should a series diode be connected between a solar panel and a storage battery that is being charged by the panel?

Select	Answer
A	To prevent damage to the battery due to excessive voltage at high illumination levels
B	To limit the current flowing from the panel to a safe value
C	To prevent overload by regulating the charging voltage
D	To prevent discharge of the battery through the panel during times of low or no illumination

21. - G5A07

What is the term for the inverse of impedance?

Select	Answer
A	Conductance
B	Admittance
C	Susceptance
D	Reluctance

22. - G5B06

What is the PEP produced by 200 volts peak-to-peak across a 50-ohm dummy load?

Select	Answer
A	353.5 watts
B	400 watts
C	100 watts
D	1.4 watts

23. - G5C12

What is the capacitance of a 20-microfarad capacitor connected in series with a 50-microfarad capacitor?

Select	Answer
A	14.3 microfarads
B	70 microfarads
C	0.07 microfarads
D	1,000 microfarads

24. - G6A08

Which of the following is characteristic of low voltage ceramic capacitors?

Select	Answer
A	Tight tolerance
B	High capacitance for given volume
C	Comparatively low cost
D	High stability

25. - G6B01

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

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

26. - G7A01

What is the function of a power supply bleeder resistor?

Select	Answer
A	It eliminates ground loop current
B	It removes shock hazards from the induction coils
C	It discharges the filter capacitors when power is removed
D	It acts as a fuse for excess voltage

27. - G7B09

What determines the frequency of an LC oscillator?

Select	Answer
A	The time delay of the lag circuit
B	The inductance and capacitance in the tank circuit
C	The number of stages in the counter
D	The number of stages in the divider

28. - G7C06

Which of the following is an advantage of a digital signal processing (DSP) filter compared to an analog filter?

Select	Answer
A	Mixing products are greatly reduced
B	A wide range of filter bandwidths and shapes can be created
C	Fewer digital components are required
D	The DSP filter is much more effective at VHF frequencies

29. - G8A01

How is direct binary FSK modulation generated?

Select	Answer
A	By changing an oscillator’s frequency directly with a digital control signal
B	By reconfiguring the CW keying input to act as a tone generator
C	By keying an FM transmitter with a sub-audible tone
D	By using a transceiver’s computer data interface protocol to change frequencies

30. - G8B12

What process combines two signals in a non-linear circuit to produce unwanted spurious outputs?

Select	Answer
A	Rolloff
B	Detection
C	Heterodyning
D	Intermodulation

31. - G8C04

Which of the following describes Baudot code?

Select	Answer
A	A code using error detection and correction
B	A 7-bit code with start, stop, and parity bits
C	A 5-bit code with additional start and stop bits
D	A code using SELCAL and LISTEN

32. - G9A09

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

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

33. - G9B06

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

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

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	It does not require the driven element to be insulated from the boom
C	All these choices are correct
D	It does not require any inductors or capacitors

35. - G9D06

Which of the following is an advantage of a log-periodic antenna?

Select	Answer
A	Polarization diversity
B	Higher gain per element than a Yagi antenna
C	Harmonic suppression
D	Wide bandwidth