US Amateur Radio - General (Element 3, 2023-2027) Practice Test

Anonymous User

US Amateur Radio - General (Element 3, 2023-2027) Practice Test

Logging in (or registering) will help the system to select questions that you need to focus on.

1. - G0A12

What stations are subject to the FCC rules on RF exposure?

Select	Answer
A	All commercial stations; amateur radio stations are exempt
B	Only stations with antennas lower than one wavelength above the ground
C	All stations with a time-averaged transmission of more than one milliwatt
D	Only stations transmitting more than 500 watts PEP

2. - G0B11

Which of the following is required for lightning protection ground rods?

Select	Answer
A	Bends in ground wires must be made as close as possible to a right angle
B	They must be bonded together with all other grounds
C	They must be bonded to all buried water and gas lines
D	Lightning grounds must be connected to all ungrounded wiring

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 must not cause harmful interference to primary users and must accept interference from primary users
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 may only operate during specific hours of the day, while primary users are permitted 24-hour use of the band

4. - G1B01

What is the maximum height above ground for an antenna structure not near a public use airport without requiring notification to the FAA and registration with the FCC?

Select	Answer
A	100 feet
B	250 feet
C	50 feet
D	200 feet

5. - G1C08

What is the maximum symbol rate permitted for RTTY or data emission transmitted at frequencies below 28 MHz?

Select	Answer
A	56 kilobaud
B	1200 baud
C	300 baud
D	19.6 kilobaud

6. - G1D12

When operating a station in South America by remote control over the internet from the US, what regulations apply?

Select	Answer
A	Those of both the remote station’s country and the FCC
B	Only those of the remote station’s country
C	Only those of the FCC
D	Those of the remote station’s country and the FCC’s third-party regulations

7. - G1E01

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

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C	The third party’s amateur license has been revoked and not reinstated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

8. - G2A10

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

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

9. - G2B05

When selecting an SSB transmitting frequency, what minimum separation should be used to minimize interference to stations on adjacent frequencies?

Select	Answer
A	5 Hz to 50 Hz
B	150 Hz to 500 Hz
C	2 kHz to 3 kHz
D	Approximately 6 kHz

10. - G2C04

What does the Q signal “QRL?” mean?

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

11. - G2D10

What is QRP operation?

Select	Answer
A	Remote piloted model control
B	Transmission using Quick Response Protocol
C	Traffic relay procedure net operation
D	Low-power transmit operation

12. - G2E12

Which of the following describes Winlink?

Select	Answer
A	A form of Packet Radio
B	An amateur radio wireless network to send and receive email on the internet
C	All of the above
D	A wireless network capable of both VHF and HF band operation

13. - G3A10

What causes HF propagation conditions to vary periodically in a 26- to 28-day cycle?

Select	Answer
A	Cyclic variation in Earth’s radiation belts
B	The position of the Moon in its orbit
C	Long term oscillations in the upper atmosphere
D	Rotation of the Sun’s surface layers around its axis

14. - G3B04

Which of the following is a way to determine current propagation on a desired band from your station?

Select	Answer
A	Send a series of dots and listen for echoes
B	Check the A-index
C	Use a network of automated receiving stations on the internet to see where your transmissions are being received
D	All these choices are correct

15. - G3C07

What makes HF scatter signals often sound distorted?

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

16. - G4A05

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

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

17. - G4B13

Which of the following can be measured with an antenna analyzer?

Select	Answer
A	Front-to-back ratio of an antenna
B	Power output from a transmitter
C	Impedance of coaxial cable
D	Gain of a directional antenna

18. - G4C03

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

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

19. - G4D10

How close to the lower edge of a band’s phone segment should your displayed carrier frequency be when using 3 kHz wide LSB?

Select	Answer
A	At least 1 kHz below the edge of the segment
B	At least 1 kHz above the edge of the segment
C	At least 3 kHz below the edge of the segment
D	At least 3 kHz above the edge of the segment

20. - G4E11

What precaution should be taken when connecting a solar panel to a lithium iron phosphate battery?

Select	Answer
A	Ensure the battery is placed terminals-up
B	Ground the solar panel outer metal framework
C	A series resistor must be in place
D	The solar panel must have a charge controller

21. - G5A07

What is the term for the inverse of impedance?

Select	Answer
A	Conductance
B	Admittance
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	6 watts
B	2.4 watts
C	24 watts
D	60 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	1,733 picofarads
B	3,583 picofarads
C	10.750 nanofarads
D	576.9 nanofarads

24. - G6A11

What happens when an inductor is operated above its self-resonant frequency?

Select	Answer
A	Its reactance increases
B	It becomes capacitive
C	Harmonics are generated
D	Catastrophic failure is likely

25. - G6B02

What is meant by the term MMIC?

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

26. - G7A01

What is the function of a power supply bleeder resistor?

Select	Answer
A	It acts as a fuse for excess voltage
B	It discharges the filter capacitors when power is removed
C	It removes shock hazards from the induction coils
D	It eliminates ground loop current

27. - G7B11

For which of the following modes is a Class C power stage appropriate for amplifying a modulated signal?

Select	Answer
A	FM
B	AM
C	SSB
D	All these choices are correct

28. - G7C14

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

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

29. - G8A06

Which of the following is characteristic of QPSK31?

Select	Answer
A	Its encoding provides error correction
B	Its bandwidth is approximately the same as BPSK31
C	It is sideband sensitive
D	All these choices are correct

30. - G8B08

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

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

31. - G8C06

What action results from a failure to exchange information due to excessive transmission attempts when using an ARQ mode?

Select	Answer
A	The checksum overflows
B	Encoding reverts to the default character set
C	Packets will be routed incorrectly
D	The connection is dropped

32. - G9A04

What causes reflected power at an antenna’s feed point?

Select	Answer
A	Using more transmitter power than the antenna can handle
B	Feeding the antenna with unbalanced feed line
C	Operating an antenna at its resonant frequency
D	A difference between feed line impedance and antenna feed point impedance

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

34. - G9C01

Which of the following would increase the bandwidth of a Yagi antenna?

Select	Answer
A	Loading coils in series with the element
B	Closer element spacing
C	Tapered-diameter elements
D	Larger-diameter elements

35. - G9D12

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

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