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. - G0A08

Which of the following steps must an amateur operator take to ensure compliance with RF safety regulations?

Select	Answer
A	Perform a routine RF exposure evaluation and prevent access to any identified high exposure areas
B	All these choices are correct
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. - G0B13

Where should lightning arrestors be located?

Select	Answer
A	At the closest power pole ground electrode
B	On the antenna, opposite the feed point
C	In series with each ground lead
D	Where the feed lines enter the building

3. - G1A02

On which of the following bands is phone operation prohibited?

Select	Answer
A	17 meters
B	160 meters
C	12 meters
D	30 meters

4. - G1B09

On what HF frequencies are automatically controlled beacons permitted?

Select	Answer
A	On any frequency if power is less than 1 watt
B	28.20 MHz to 28.30 MHz
C	On any frequency if transmissions are in Morse code
D	21.08 MHz to 21.09 MHz

5. - G1C11

What measurement is specified by FCC rules that regulate maximum power?

Select	Answer
A	PEP output from the transmitter
B	RMS output from the transmitter
C	PEP input to the antenna
D	RMS input to the antenna

6. - G1D05

When operating a US station by remote control from outside the country, what license is required of the control operator?

Select	Answer
A	Only a license from the foreign country, as long as the call sign includes identification of portable operation in the US
B	A license from the foreign country and a special remote station permit from the FCC
C	Only an appropriate US operator/primary license and a special remote station permit from the FCC
D	A US operator/primary station license

7. - G1E01

Which of the following would disqualify a third party from participating in sending a message via an amateur station?

Select	Answer
A	The third party is not a US citizen
B	All these choices are correct
C	The third party is speaking in a language other than English
D	The third party’s amateur license has been revoked and not reinstated

8. - G2A08

What is the recommended way to break into a phone contact?

Select	Answer
A	Say “CQ” followed by the call sign of either station
B	Say “QRZ” several times, followed by your call sign
C	Say “Breaker Breaker”
D	Say your call sign once

9. - G2B09

Who may be the control operator of an amateur station transmitting in RACES to assist relief operations during a disaster?

Select	Answer
A	Only a person holding an FCC-issued amateur operator license
B	Any control operator when normal communication systems are operational
C	Only a RACES net control operator
D	A person holding an FCC-issued amateur operator license or an appropriate government official

10. - G2C04

What does the Q signal “QRL?” mean?

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

11. - G2D02

Which of the following are objectives of the Volunteer Monitor Program?

Select	Answer
A	To encourage amateur radio operators to self-regulate and comply with the rules
B	To provide emergency and public safety communications
C	To coordinate repeaters for efficient and orderly spectrum usage
D	To conduct efficient and orderly amateur licensing examinations

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	The mark and space frequencies may be reversed
D	All these choices are correct

13. - G3A06

What is a geomagnetic storm?

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

14. - G3B11

What happens to HF propagation when the LUF exceeds the MUF?

Select	Answer
A	Propagation via ordinary skywave communications is not possible over that path
B	Propagation over the path on all HF frequencies is enhanced
C	Double-hop propagation along the path is more common
D	HF communications over the path are enhanced

15. - G3C03

Why is skip propagation via the F2 region longer than that via the other ionospheric regions?

Select	Answer
A	Because of the Doppler effect
B	Because it is the highest
C	Because it is the densest
D	Because of temperature inversions

16. - G4A13

What is the purpose of using a receive attenuator?

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

17. - G4B04

What signal source is connected to the vertical input of an oscilloscope when checking the RF envelope pattern of a transmitted signal?

Select	Answer
A	The transmitter balanced mixer output
B	The local oscillator of the transmitter
C	An external RF oscillator
D	The attenuated RF output of the transmitter

18. - G4C01

Which of the following might be useful in reducing RF interference to audio frequency circuits?

Select	Answer
A	Reverse-biased diode
B	Forward-biased diode
C	Bypass capacitor
D	Bypass inductor

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

20. - G4E01

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

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

21. - G5A04

Which of the following is opposition to the flow of alternating current in a capacitor?

Select	Answer
A	Reluctance
B	Reactance
C	Admittance
D	Conductance

22. - G5B09

What is the RMS voltage of a sine wave with a value of 17 volts peak?

Select	Answer
A	34 volts
B	24 volts
C	8.5 volts
D	12 volts

23. - G5C13

Which of the following components should be added to a capacitor to increase the capacitance?

Select	Answer
A	An inductor in series
B	An inductor in parallel
C	A capacitor in parallel
D	A capacitor in series

24. - G6A05

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

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

25. - G6B02

What is meant by the term MMIC?

Select	Answer
A	Mode Modulated Integrated Circuit
B	Metal Monolayer Integrated Circuit
C	Monolithic Microwave Integrated Circuit
D	Multi-Mode Integrated Circuit

26. - G7A03

Which type of rectifier circuit uses two diodes and a center-tapped transformer?

Select	Answer
A	Full-wave
B	Synchronous
C	Half-wave
D	Full-wave bridge

27. - G7B06

What is a shift register?

Select	Answer
A	An array of operational amplifiers used for tri-state arithmetic operations
B	A clocked array of circuits that passes data in steps along the array
C	A digital mixer
D	An analog mixer

28. - G7C02

What output is produced by a balanced modulator?

Select	Answer
A	Frequency modulated RF
B	Double-sideband modulated RF
C	Audio with equalized frequency response
D	Audio extracted from the modulation signal

29. - G8A07

Which of the following phone emissions uses the narrowest bandwidth?

Select	Answer
A	Frequency modulation
B	Vestigial sideband
C	Phase modulation
D	Single sideband

30. - G8B08

Why is it important to know the duty cycle of the mode you are using when transmitting?

Select	Answer
A	To allow time for the other station to break in during a transmission
B	Some modes have high duty cycles that could exceed the transmitter’s average power rating
C	To prevent overmodulation
D	To aid in tuning your transmitter

31. - G8C11

How are the two separate frequencies of a Frequency Shift Keyed (FSK) signal identified?

Select	Answer
A	High and low
B	Dot and dash
C	Mark and space
D	On and off

32. - G9A02

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

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

33. - G9B10

What is the approximate length for a 1/2 wave dipole antenna cut for 14.250 MHz?

Select	Answer
A	24 feet
B	16 feet
C	8 feet
D	33 feet

34. - G9C11

What is a beta or hairpin match?

Select	Answer
A	A 1/4 wavelength section of 75-ohm coax in series with the feed point of a Yagi to provide impedance matching
B	A section of 300-ohm twin-lead transmission line used to match a folded dipole antenna
C	A series capacitor selected to cancel the inductive reactance of a folded dipole antenna
D	A shorted transmission line stub placed at the feed point of a Yagi antenna to provide impedance matching

35. - G9D03

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

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