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. - G0A06

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

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

2. - G0B01

Which wire or wires in a four-conductor 240 VAC circuit should be attached to fuses or circuit breakers?

Select	Answer
A	Only the neutral wire
B	All wires
C	Only the ground wire
D	Only the hot wires

3. - G1A01

On which HF and/or MF amateur bands are there portions where General class licensees cannot transmit?

Select	Answer
A	80 meters, 20 meters, 15 meters, and 10 meters
B	160 meters, 60 meters, 15 meters, and 12 meters
C	60 meters, 30 meters, 17 meters, and 12 meters
D	80 meters, 40 meters, 20 meters, and 15 meters

4. - G1B02

With which of the following conditions must beacon stations comply?

Select	Answer
A	The frequency must be posted on the internet or published in a national periodical
B	The frequency must be coordinated with the National Beacon Organization
C	No more than one beacon station may transmit in the same band from the same station location
D	All these choices are correct

5. - G1C03

What is the maximum bandwidth permitted by FCC rules for amateur radio stations transmitting on USB frequencies in the 60-meter band?

Select	Answer
A	3 kHz
B	5.6 kHz
C	2.8 kHz
D	1.8 kHz

6. - G1D01

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

Select	Answer
A	Only persons who once held an FCC issued Novice, Technician, or Technician Plus license
B	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
C	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
D	Anyone who held an FCC-issued amateur radio license that expired not less than 5 and not more than 15 years ago

7. - G1E02

When may a 10-meter repeater retransmit the 2-meter signal from a station that has a Technician class control operator?

Select	Answer
A	Only if the station on 10-meters is operating under a Special Temporary Authorization allowing such retransmission
B	Under no circumstances
C	Only if the 10-meter repeater control operator holds at least a General class license
D	Only during an FCC-declared general state of communications emergency

8. - G2A06

Which of the following is an advantage of using single sideband, as compared to other analog voice modes on the HF amateur bands?

Select	Answer
A	Less subject to interference from atmospheric static crashes
B	Ease of tuning on receive and immunity to impulse noise
C	Very high-fidelity voice modulation
D	Less bandwidth used and greater power efficiency

9. - G2B01

Which of the following is true concerning access to frequencies?

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

10. - G2C04

What does the Q signal “QRL?” mean?

Select	Answer
A	“Are you busy?” or “Is this frequency in use?”
B	“Are you operating full break-in?” or “Can you operate full break-in?”
C	“Will you keep the frequency clear?”
D	“Are you listening only for a specific station?”

11. - G2D06

How is a directional antenna pointed when making a “long-path” contact with another station?

Select	Answer
A	Toward the rising sun
B	180 degrees from the station’s short-path heading
C	Along the gray line
D	Toward the north

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

13. - G3A08

How can a geomagnetic storm affect HF propagation?

Select	Answer
A	Degrade ground wave propagation
B	Improve high-latitude HF propagation
C	Improve ground wave propagation
D	Degrade high-latitude HF propagation

14. - G3B03

Which frequency will have the least attenuation for long-distance skip propagation?

Select	Answer
A	Just above the LUF
B	Just below the critical frequency
C	Just below the MUF
D	Just above the critical frequency

15. - G3C06

What is a characteristic of HF scatter?

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

16. - G4A11

Why should the ALC system be inactive when transmitting AFSK data signals?

Select	Answer
A	All these choices are correct
B	When using digital modes, too much ALC activity can cause the transmitter to overheat
C	The ALC action distorts the signal
D	ALC will invert the modulation of the AFSK mode

17. - G4B09

When is an analog multimeter preferred to a digital multimeter?

Select	Answer
A	When testing logic circuits
B	When high precision is desired
C	When measuring the frequency of an oscillator
D	When adjusting circuits for maximum or minimum values

18. - G4C04

What sound is heard from an audio device experiencing RF interference from a CW transmitter?

Select	Answer
A	A chirpy CW signal
B	Severely distorted audio
C	A CW signal at a nearly pure audio frequency
D	On-and-off humming or clicking

19. - G4D05

How does a signal that reads 20 dB over S9 compare to one that reads S9 on a receiver, assuming a properly calibrated S meter?

Select	Answer
A	It is 20 times less powerful
B	It is 100 times more powerful
C	It is 10 times less powerful
D	It is 20 times more powerful

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

21. - G5A08

What is impedance?

Select	Answer
A	The product of current and reactance
B	The product of current and voltage
C	The ratio of voltage to current
D	The ratio of current to voltage

22. - G5B10

What percentage of power loss is equivalent to a loss of 1 dB?

Select	Answer
A	25.9 percent
B	20.6 percent
C	12.2 percent
D	10.9 percent

23. - G5C07

What transformer turns ratio matches an antenna’s 600-ohm feed point impedance to a 50-ohm coaxial cable?

Select	Answer
A	3.5 to 1
B	24 to 1
C	144 to 1
D	12 to 1

24. - G6A05

What is the approximate forward threshold voltage of a silicon junction diode?

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

25. - G6B11

What is an SMA connector?

Select	Answer
A	A type of push-on connector intended for high-voltage applications
B	A type-S to type-M adaptor
C	A connector designed for serial multiple access signals
D	A small threaded connector suitable for signals up to several GHz

26. - G7A02

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

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

27. - G7B08

How is the efficiency of an RF power amplifier determined?

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

28. - G7C12

What is the frequency above which a low-pass filter’s output power is less than half the input power?

Select	Answer
A	Cutoff frequency
B	Notch frequency
C	Neper frequency
D	Rolloff frequency

29. - G8A06

Which of the following is characteristic of QPSK31?

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

30. - G8B05

Which intermodulation products are closest to the original signal frequencies?

Select	Answer
A	Odd-order
B	Intercept point
C	Even-order
D	Second harmonics

31. - G8C08

Which of the following statements is true about PSK31?

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

32. - G9A02

What is the relationship between high standing wave ratio (SWR) and transmission line loss?

Select	Answer
A	High SWR reduces the relative effect of transmission line loss
B	High SWR makes it difficult to measure transmission line loss
C	There is no relationship between transmission line loss and SWR
D	High SWR increases loss in a lossy transmission line

33. - G9B01

What is a characteristic of a random-wire HF antenna connected directly to the transmitter?

Select	Answer
A	It produces only vertically polarized radiation
B	It is more effective on the lower HF bands than on the higher bands
C	Station equipment may carry significant RF current
D	It must be longer than 1 wavelength

34. - G9C01

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

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

35. - G9D05

What is an advantage of vertically stacking horizontally polarized Yagi antennas?

Select	Answer
A	It narrows the main lobe in azimuth
B	It narrows the main lobe in elevation
C	It allows simultaneous vertical and horizontal polarization
D	It allows quick selection of vertical or horizontal polarization