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. - G0A05

What must you do if an evaluation of your station shows that the RF energy radiated by your station exceeds permissible limits for possible human absorption?

Select	Answer
A	All these choices are correct
B	Take action to prevent human exposure to the excessive RF fields
C	Secure written permission from your neighbors to operate above the controlled MPE limits
D	File an Environmental Impact Statement (EIS-97) with the FCC

2. - G0B02

According to the National Electrical Code, what is the minimum wire size that may be used safely for wiring with a 20-ampere circuit breaker?

Select	Answer
A	AWG number 8
B	AWG number 12
C	AWG number 20
D	AWG number 16

3. - G1A06

Which of the following applies when the FCC rules designate the amateur service as a secondary user on a band?

Select	Answer
A	Amateur stations may only operate during specific hours of the day, while primary users are permitted 24-hour use of the band
B	Amateur stations may use the band only during emergencies
C	Amateur stations must record the call sign of the primary service station before operating on a frequency assigned to that station
D	Amateur stations must not cause harmful interference to primary users and must accept interference from primary users

4. - G1B07

What are the restrictions on the use of abbreviations or procedural signals in the amateur service?

Select	Answer
A	They may be used if they do not obscure the meaning of a message
B	Only “Q” signals are permitted
C	They are limited to those expressly listed in Part 97 of the FCC rules
D	They are not permitted

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	2.8 kHz
B	5.6 kHz
C	3 kHz
D	1.8 kHz

6. - G1D08

Which of the following criteria must be met for a non-US citizen to be an accredited Volunteer Examiner?

Select	Answer
A	The person’s home citizenship must be in ITU region 2
B	The person must hold an FCC granted amateur radio license of General class or above
C	None of these choices is correct; a non-US citizen cannot be a Volunteer Examiner
D	The person must be a resident of the US for a minimum of 5 years

7. - G1E07

In what part of the 2.4 GHz band may an amateur station communicate with non-licensed Wi-Fi stations?

Select	Answer
A	Channels 42 through 45
B	Anywhere in the band
C	No part
D	Channels 1 through 4

8. - G2A03

Which mode is most commonly used for SSB voice communications in the VHF and UHF bands?

Select	Answer
A	Suppressed sideband
B	Upper sideband
C	Lower sideband
D	Double sideband

9. - G2B07

Which of the following complies with commonly accepted amateur practice when choosing a frequency on which to initiate a call?

Select	Answer
A	Listen on the frequency for at least two minutes to be sure it is clear
B	All these choices are correct
C	Identify your station by transmitting your call sign at least 3 times
D	Follow the voluntary band plan

10. - G2C08

What prosign is sent to indicate the end of a formal message when using CW?

Select	Answer
A	AR
B	KN
C	BK
D	SK

11. - G2D01

What is the Volunteer Monitor Program?

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

12. - G2E03

What symptoms may result from other signals interfering with a PACTOR or VARA transmission?

Select	Answer
A	Long pauses in message transmission
B	Frequent retries or timeouts
C	Failure to establish a connection between stations
D	All these choices are correct

13. - G3A09

How can high geomagnetic activity benefit radio communications?

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

14. - G3B10

What is the approximate maximum distance along the Earth’s surface normally covered in one hop using the E region?

Select	Answer
A	1,200 miles
B	12,000 miles
C	2,500 miles
D	180 miles

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

16. - G4A04

What is the effect on plate current of the correct setting of a vacuum-tube RF power amplifier’s TUNE control?

Select	Answer
A	No change will be observed
B	A slow, rhythmic oscillation
C	A pronounced peak
D	A pronounced dip

17. - G4B09

When is an analog multimeter preferred to a digital multimeter?

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

18. - G4C10

What could be a symptom caused by a ground loop in your station’s audio connections?

Select	Answer
A	An item of station equipment starts to draw excessive amounts of current
B	You receive reports of “hum” on your station’s transmitted signal
C	The SWR reading for one or more antennas is suddenly very high
D	You receive reports of harmonic interference from your station

19. - G4D09

What frequency range is occupied by a 3 kHz USB signal with the displayed carrier frequency set to 14.347 MHz?

Select	Answer
A	14.344 MHz to 14.347 MHz
B	14.3455 MHz to 14.3485 MHz
C	14.347 MHz to 14.350 MHz
D	14.347 MHz to 14.647 MHz

20. - G4E01

What is the purpose of a capacitance hat on a mobile antenna?

Select	Answer
A	To lower the radiation angle
B	To increase the power handling capacity of a whip antenna
C	To electrically lengthen a physically short antenna
D	To reduce radiation resistance

21. - G5A03

Which of the following is opposition to the flow of alternating current in an inductor?

Select	Answer
A	Admittance
B	Conductance
C	Reactance
D	Reluctance

22. - G5B07

What value of an AC signal produces the same power dissipation in a resistor as a DC voltage of the same value?

Select	Answer
A	The reciprocal of the RMS value
B	The peak value
C	The RMS value
D	The peak-to-peak value

23. - G5C09

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

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

24. - G6A02

What is an advantage of batteries with low internal resistance?

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

25. - G6B07

Which of the following describes a type N connector?

Select	Answer
A	A low noise figure VHF connector
B	A moisture-resistant RF connector useful to 10 GHz
C	A nickel plated version of the PL-259
D	A small bayonet connector used for data circuits

26. - G7A09

Which symbol in figure G7-1 represents a field effect transistor?

Select	Answer
A	Symbol 5
B	Symbol 4
C	Symbol 2
D	Symbol 1

27. - G7B07

Which of the following are basic components of a sine wave oscillator?

Select	Answer
A	An amplifier and a divider
B	A circulator and a filter operating in a feed-forward loop
C	A filter and an amplifier operating in a feedback loop
D	A frequency multiplier and a mixer

28. - G7C14

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

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

29. - G8A13

What is a link budget?

Select	Answer
A	The difference between transmit power and receiver sensitivity
B	The sum of antenna gains minus system losses
C	The financial costs associated with operating a radio link
D	The sum of transmit power and antenna gains minus system losses as seen at the receiver

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	Reactance modulator
B	Balanced converter
C	Multiplier
D	Mixer

31. - G8C02

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

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

32. - G9A03

What is the nominal characteristic impedance of “window line” transmission line?

Select	Answer
A	100 ohms
B	450 ohms
C	50 ohms
D	75 ohms

33. - G9B05

How does antenna height affect the azimuthal radiation pattern of a horizontal dipole HF antenna at elevation angles higher than about 45 degrees?

Select	Answer
A	Antenna height has no effect on the pattern
B	If the antenna is less than 1/2 wavelength high, radiation off the ends of the wire is eliminated
C	If the antenna is too high, the pattern becomes unpredictable
D	If the antenna is less than 1/2 wavelength high, the azimuthal pattern is almost omnidirectional

34. - G9C02

What is the approximate length of the driven element of a Yagi antenna?

Select	Answer
A	1 wavelength
B	3/4 wavelength
C	1/4 wavelength
D	1/2 wavelength

35. - G9D08

How does a “screwdriver” mobile antenna adjust its feed point impedance?

Select	Answer
A	By varying the base loading inductance
B	By deploying a capacitance hat
C	By extending and retracting the whip
D	By varying its body capacitance

Figure G7-1