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. - G0A02

Which of the following is used to determine RF exposure from a transmitted signal?

Select	Answer
A	All these choices are correct
B	Its frequency
C	Its power density
D	Its duty cycle

2. - G0B10

Which of the following is a danger from lead-tin solder?

Select	Answer
A	RF energy can convert the lead into a poisonous gas
B	Lead can contaminate food if hands are not washed carefully after handling the solder
C	Tin in the solder can “cold flow,” causing shorts in the circuit
D	High voltages can cause lead-tin solder to disintegrate suddenly

3. - G1A04

Which of the following amateur bands is restricted to communication only on specific channels, rather than frequency ranges?

Select	Answer
A	60 meters
B	12 meters
C	30 meters
D	11 meters

4. - G1B03

Which of the following is a purpose of a beacon station as identified in the FCC rules?

Select	Answer
A	Automatic identification of repeaters
B	All these choices are correct
C	Transmission of bulletins of general interest to amateur radio licensees
D	Observation of propagation and reception

5. - G1C11

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

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

6. - G1D09

How long is a Certificate of Successful Completion of Examination (CSCE) valid for exam element credit?

Select	Answer
A	For as long as your current license is valid
B	180 days
C	365 days
D	30 days

7. - G1E12

When may third-party messages be transmitted via remote control?

Select	Answer
A	Only when the message is intended for licensed radio amateurs
B	Under any circumstances in which third party messages are permitted by FCC rules
C	Under no circumstances except for emergencies
D	Only when the message is intended for third parties in areas where licensing is controlled by the FCC

8. - G2A08

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

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

9. - G2B10

Which of the following is good amateur practice for net management?

Select	Answer
A	Have a backup frequency in case of interference or poor conditions
B	Always use multiple sets of phonetics during check-in
C	Transmit the full net roster at the beginning of every session
D	All these choices are correct

10. - G2C08

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

Select	Answer
A	SK
B	AR
C	KN
D	BK

11. - G2D07

Which of the following are examples of the NATO Phonetic Alphabet?

Select	Answer
A	Able, Baker, Charlie, Dog
B	America, Boston, Canada, Denmark
C	Alpha, Bravo, Charlie, Delta
D	Adam, Boy, Charles, David

12. - G2E03

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

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

13. - G3A06

What is a geomagnetic storm?

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

14. - G3B09

What is the approximate maximum distance along the Earth’s surface normally covered in one hop using the F2 region?

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

15. - G3C10

What is near vertical incidence skywave (NVIS) propagation?

Select	Answer
A	Double hop propagation near the LUF
B	Short distance MF or HF propagation at high elevation angles
C	Propagation near the MUF
D	Long path HF propagation at sunrise and sunset

16. - G4A08

What is the correct adjustment for the LOAD or COUPLING control of a vacuum tube RF power amplifier?

Select	Answer
A	Desired power output without exceeding maximum allowable plate current
B	Minimum SWR on the antenna
C	Minimum plate current without exceeding maximum allowable grid current
D	Highest plate voltage while minimizing grid current

17. - G4B10

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

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

18. - G4C12

Why must all metal enclosures of station equipment be grounded?

Select	Answer
A	It ensures that the neutral wire is grounded
B	It ensures that hazardous voltages cannot appear on the chassis
C	It prevents signal overload
D	It prevents a blown fuse in the event of an internal short circuit

19. - G4D03

What is the effect of an incorrectly adjusted speech processor?

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

20. - G4E01

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

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

21. - G5A11

What letter is used to represent reactance?

Select	Answer
A	Z
B	X
C	Y
D	B

22. - G5B09

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

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

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. - G6A07

What are the operating points for a bipolar transistor used as a switch?

Select	Answer
A	Peak and valley current points
B	Saturation and cutoff
C	The active region (between cutoff and saturation)
D	Enhancement and depletion modes

25. - G6B12

Which of these connector types is commonly used for low frequency or dc signal connections to a transceiver?

Select	Answer
A	BNC
B	RCA Phono
C	PL-259
D	Type N

26. - G7A13

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

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

27. - G7B06

What is a shift register?

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

28. - G7C10

What is an advantage of using I-Q modulation with software-defined radios (SDRs)?

Select	Answer
A	Minimum detectible signal level is reduced
B	All types of modulation can be created with appropriate processing
C	The need for high resolution analog-to-digital converters is eliminated
D	Automatic conversion of the signal from digital to analog

29. - G8A07

Which of the following phone emissions uses the narrowest bandwidth?

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

30. - G8B06

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

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

31. - G8C12

Which type of code is used for sending characters in a PSK31 signal?

Select	Answer
A	Varicode
B	Viterbi
C	Binary
D	Volumetric

32. - G9A03

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

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

33. - G9B03

Which of the following best describes the radiation pattern of a quarter-wave ground-plane vertical antenna?

Select	Answer
A	Isotropic
B	Hemispherical
C	Omnidirectional in azimuth
D	Bi-directional in azimuth

34. - G9C03

How do the lengths of a three-element Yagi reflector and director compare to that of the driven element?

Select	Answer
A	The reflector is longer, and the director is shorter
B	They are all the same length
C	The reflector is shorter, and the director is longer
D	Relative length depends on the frequency of operation

35. - G9D12

What is the common name of a dipole with a single central support?

Select	Answer
A	Inverted V
B	Sloper
C	Inverted L
D	Lazy H

Figure G7-1