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

2. - G0B05

Which of the following conditions will cause a ground fault circuit interrupter (GFCI) to disconnect AC power?

Select	Answer
A	Current flowing from one or more of the hot wires to the neutral wire
B	Overvoltage on the hot wires
C	All these choices are correct
D	Current flowing from one or more of the hot wires directly to ground

3. - G1A11

When General class licensees are not permitted to use the entire voice portion of a band, which portion of the voice segment is available to them?

Select	Answer
A	The upper frequency portion
B	The lower frequency portion on frequencies below 7.3 MHz, and the upper portion on frequencies above 14.150 MHz
C	The upper frequency portion on frequencies below 7.3 MHz, and the lower portion on frequencies above 14.150 MHz
D	The lower frequency portion

4. - G1B11

Who or what determines “good engineering and good amateur practice,” as applied to the operation of an amateur station in all respects not covered by the Part 97 rules?

Select	Answer
A	The IEEE
B	The FCC
C	The ITU
D	The control operator

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	1.8 kHz
C	2.8 kHz
D	5.6 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	None of these choices is correct; a non-US citizen cannot be a Volunteer Examiner
B	The person must hold an FCC granted amateur radio license of General class or above
C	The person must be a resident of the US for a minimum of 5 years
D	The person’s home citizenship must be in ITU region 2

7. - G1E11

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

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

8. - G2A05

Which mode of voice communication is most commonly used on the HF amateur bands?

Select	Answer
A	Single sideband
B	Double sideband
C	Frequency modulation
D	Single phase modulation

9. - G2B11

How often may RACES training drills and tests be routinely conducted without special authorization?

Select	Answer
A	No more than 2 hours per week
B	No more than 2 hours per month
C	No more than 1 hour per week
D	No more than 1 hour per month

10. - G2C11

What does the Q signal “QRV” mean?

Select	Answer
A	I am quitting for the day
B	You are sending too fast
C	I am ready to receive
D	There is interference on the frequency

11. - G2D06

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

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

12. - G2E07

Which of the following is required when using FT8?

Select	Answer
A	A special hardware modem
B	Computer time accurate to within approximately 1 second
C	Receiver attenuator set to -12 dB
D	A vertically polarized antenna

13. - G3A06

What is a geomagnetic storm?

Select	Answer
A	A thunderstorm that affects radio propagation
B	Ripples in the geomagnetic force
C	A sudden drop in the solar flux index
D	A temporary disturbance in Earth’s geomagnetic field

14. - G3B02

What factors affect the MUF?

Select	Answer
A	All these choices are correct
B	Solar radiation and ionospheric disturbances
C	Path distance and location
D	Time of day and season

15. - G3C07

What makes HF scatter signals often sound distorted?

Select	Answer
A	Ground waves are absorbing much of the signal
B	The ionospheric region involved is unstable
C	The E region is not present
D	Energy is scattered into the skip zone through several different paths

16. - G4A01

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

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

17. - G4B10

Which of the following can be determined with a directional wattmeter?

Select	Answer
A	Antenna front-to-back ratio
B	Standing wave ratio
C	RF interference
D	Radio wave propagation

18. - G4C03

What sound is heard from an audio device experiencing RF interference from a single sideband phone transmitter?

Select	Answer
A	On-and-off humming or clicking
B	Distorted speech
C	Clearly audible speech
D	A steady hum whenever the transmitter is on the air

19. - G4D03

What is the effect of an incorrectly adjusted speech processor?

Select	Answer
A	Excess intermodulation products
B	All these choices are correct
C	Distorted speech
D	Excessive background noise

20. - G4E07

Which of the following may cause receive interference to an HF transceiver installed in a vehicle?

Select	Answer
A	All these choices are correct
B	The control computers
C	The fuel delivery system
D	The battery charging system

21. - G5A09

What unit is used to measure reactance?

Select	Answer
A	Farad
B	Siemens
C	Ohm
D	Ampere

22. - G5B12

What is the RMS voltage across a 50-ohm dummy load dissipating 1200 watts?

Select	Answer
A	346 volts
B	173 volts
C	245 volts
D	692 volts

23. - G5C03

What is the total resistance of a 10-, a 20-, and a 50-ohm resistor connected in parallel?

Select	Answer
A	0.17 ohms
B	17 ohms
C	5.9 ohms
D	80 ohms

24. - G6A04

Which of the following is characteristic of an electrolytic capacitor?

Select	Answer
A	High capacitance for a given volume
B	Much less leakage than any other type
C	Inexpensive RF capacitor
D	Tight tolerance

25. - G6B08

How is an LED biased when emitting light?

Select	Answer
A	At the Zener voltage
B	In the tunnel-effect region
C	Forward biased
D	Reverse biased

26. - G7A10

Which symbol in figure G7-1 represents a Zener diode?

Select	Answer
A	Symbol 1
B	Symbol 4
C	Symbol 5
D	Symbol 11

27. - G7B01

What is the purpose of neutralizing an amplifier?

Select	Answer
A	To cut off the final amplifier during standby periods
B	To keep the carrier on frequency
C	To limit the modulation index
D	To eliminate self-oscillations

28. - G7C03

What is one reason to use an impedance matching transformer at a transmitter output?

Select	Answer
A	To minimize transmitter power output
B	To minimize radiation resistance
C	To present the desired impedance to the transmitter and feed line
D	To reduce power supply ripple

29. - G8A14

What is link margin?

Select	Answer
A	The opposite of fade margin
B	Transmit power minus receiver sensitivity
C	The difference between received power level and minimum required signal level at the input to the receiver
D	Receiver sensitivity plus 3 dB

30. - G8B06

What is the total bandwidth of an FM phone transmission having 5 kHz deviation and 3 kHz modulating frequency?

Select	Answer
A	5 kHz
B	3 kHz
C	16 kHz
D	8 kHz

31. - G8C04

Which of the following describes Baudot code?

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

32. - G9A10

What standing wave ratio results from connecting a 50-ohm feed line to a 10-ohm resistive load?

Select	Answer
A	1:5
B	5:1
C	2:1
D	1:2

33. - G9B01

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

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

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

35. - G9D01

Which of the following antenna types will be most effective as a near vertical incidence skywave (NVIS) antenna for short-skip communications on 40 meters during the day?

Select	Answer
A	A horizontal dipole placed at approximately 1/2 wavelength above the ground
B	A vertical dipole placed at approximately 1/2 wavelength above the ground
C	A horizontal dipole placed between 1/10 and 1/4 wavelength above the ground
D	A vertical antenna placed between 1/4 and 1/2 wavelength above the ground

Figure G7-1