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	Perform an RF Exposure Evaluation in accordance with FCC OET Bulletin 65
C	Contact the FCC for permission to transmit
D	Perform an RF exposure evaluation in accordance with World Meteorological Organization guidelines

2. - G0B03

Which size of fuse or circuit breaker would be appropriate to use with a circuit that uses AWG number 14 wiring?

Select	Answer
A	25 amperes
B	20 amperes
C	30 amperes
D	15 amperes

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

4. - G1B06

Under what conditions are state and local governments permitted to regulate amateur radio antenna structures?

Select	Answer
A	At any time and to any extent necessary to accomplish a legitimate purpose of the state or local entity, provided that proper filings are made with the FCC
B	Under no circumstances, FCC rules take priority
C	Amateur Service communications must be reasonably accommodated, and regulations must constitute the minimum practical to accommodate a legitimate purpose of the state or local entity
D	Only when such structures exceed 50 feet in height and are clearly visible 1,000 feet from the structure

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	1.8 kHz
B	5.6 kHz
C	3 kHz
D	2.8 kHz

6. - G1D04

Who must observe the administration of a Technician class license examination?

Select	Answer
A	At least two Volunteer Examiners of General class or higher
B	At least three Volunteer Examiners of Technician class
C	At least three Volunteer Examiners of General class or higher
D	At least two Volunteer Examiners of Technician class or higher

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

8. - G2A10

Which of the following statements is true of VOX operation versus PTT operation?

Select	Answer
A	It provides more power output
B	The received signal is more natural sounding
C	It occupies less bandwidth
D	It allows “hands free” operation

9. - G2B01

Which of the following is true concerning access to frequencies?

Select	Answer
A	Nets have priority
B	QSOs in progress 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. - G2C09

What does the Q signal “QSL” mean?

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

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

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

13. - G3A07

At what point in the solar cycle does the 20-meter band usually support worldwide propagation during daylight hours?

Select	Answer
A	Only at the minimum point
B	At the summer solstice
C	Only at the maximum point
D	At any point

14. - G3B07

What does LUF stand for?

Select	Answer
A	The Lowest Usable Frequency during a 24-hour period
B	Lowest Usable Frequency for communications to any point outside a 100-mile radius
C	Lowest Usable Frequency during the past 60 minutes
D	The Lowest Usable Frequency for communications between two specific points

15. - G3C01

Which ionospheric region is closest to the surface of Earth?

Select	Answer
A	The D region
B	The E region
C	The F2 region
D	The F1 region

16. - G4A05

Why is automatic level control (ALC) used with an RF power amplifier?

Select	Answer
A	To prevent excessive drive
B	To reduce harmonic radiation
C	To increase overall efficiency
D	To balance the transmitter audio frequency response

17. - G4B12

What effect can strong signals from nearby transmitters have on an antenna analyzer?

Select	Answer
A	Received power that interferes with SWR readings
B	Desensitization which can cause intermodulation products which interfere with impedance readings
C	All these choices are correct
D	Generation of harmonics which interfere with frequency readings

18. - G4C05

What is a possible cause of high voltages that produce RF burns?

Select	Answer
A	Insulated wire has been used for the ground wire
B	Flat braid rather than round wire has been used for the ground wire
C	The ground rod is resonant
D	The ground wire has high impedance on that frequency

19. - G4D04

What does an S meter measure?

Select	Answer
A	Transmitter power output
B	Carrier suppression
C	Received signal strength
D	Impedance

20. - G4E02

What is the purpose of a corona ball on an HF mobile antenna?

Select	Answer
A	To reduce the chance of damage if the antenna should strike an object
B	To increase the “Q” of the antenna
C	To narrow the operating bandwidth of the antenna
D	To reduce RF voltage discharge from the tip of the antenna while transmitting

21. - G5A07

What is the term for the inverse of impedance?

Select	Answer
A	Admittance
B	Conductance
C	Susceptance
D	Reluctance

22. - G5B04

How many watts of electrical power are consumed by a 12 VDC light bulb that draws 0.2 amperes?

Select	Answer
A	24 watts
B	60 watts
C	6 watts
D	2.4 watts

23. - G5C08

What is the equivalent capacitance of two 5.0-nanofarad capacitors and one 750-picofarad capacitor connected in parallel?

Select	Answer
A	576.9 nanofarads
B	1,733 picofarads
C	10.750 nanofarads
D	3,583 picofarads

24. - G6A02

What is an advantage of batteries with low internal resistance?

Select	Answer
A	High discharge current
B	Long life
C	Rapid recharge
D	High voltage

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	High power handling capability
C	Better suited for RF amplification
D	Better suited for power supply regulation

26. - G7A13

Which symbol in Figure G7-1 represents a tapped inductor?

Select	Answer
A	Symbol 7
B	Symbol 6
C	Symbol 11
D	Symbol 1

27. - G7B02

Which of these classes of amplifiers has the highest efficiency?

Select	Answer
A	Class B
B	Class C
C	Class A
D	Class AB

28. - G7C07

What term specifies a filter’s attenuation inside its passband?

Select	Answer
A	Insertion loss
B	Q
C	Ultimate rejection
D	Return loss

29. - G8A12

What is QPSK modulation?

Select	Answer
A	Modulation using Fast Fourier Transforms to generate frequencies at the first, second, third, and fourth harmonics of the carrier frequency to improve noise immunity
B	Modulation using quadra-pole sideband keying to generate spread spectrum signals
C	Modulation in which digital data is transmitted using 0-, 90-, 180- and 270-degrees phase shift to represent pairs of bits
D	Modulation using quasi-parallel to serial conversion to reduce bandwidth

30. - G8B09

Why is it good to match receiver bandwidth to the bandwidth of the operating mode?

Select	Answer
A	It improves impedance matching of the antenna
B	It is required by FCC rules
C	It minimizes power consumption in the receiver
D	It results in the best signal-to-noise ratio

31. - G8C02

Which digital mode is used as a low-power beacon for assessing HF propagation?

Select	Answer
A	WSPR
B	PSK31
C	SSB-SC
D	MFSK16

32. - G9A02

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

Select	Answer
A	High SWR makes it difficult to measure transmission line loss
B	High SWR reduces the relative effect of 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. - G9B02

Which of the following is a common way to adjust the feed point impedance of an elevated quarter-wave ground-plane vertical antenna to be approximately 50 ohms?

Select	Answer
A	Slope the radials downward
B	Coil the radials
C	Slope the radials upward
D	Lengthen the radials beyond one wavelength

34. - G9C12

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

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

35. - G9D03

In which direction is the maximum radiation from a VHF/UHF “halo” antenna?

Select	Answer
A	Broadside to the plane of the halo
B	Opposite the feed point
C	On the same side as the feed point
D	Omnidirectional in the plane of the halo

Figure G7-1