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. - 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	Secure written permission from your neighbors to operate above the controlled MPE limits
C	File an Environmental Impact Statement (EIS-97) with the FCC
D	All these choices are correct

2. - G0B11

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

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

3. - G1A10

What portion of the 10-meter band is available for repeater use?

Select	Answer
A	The entire band
B	The portion between 28.1 MHz and 28.2 MHz
C	The portion above 29.5 MHz
D	The portion between 28.3 MHz and 28.5 MHz

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. - G1C11

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

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

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’s home citizenship must be in ITU region 2
C	The person must be a resident of the US for a minimum of 5 years
D	The person must hold an FCC granted amateur radio license of General class or above

7. - G1E09

Under what circumstances are messages that are sent via digital modes exempt from Part 97 third-party rules that apply to other modes of communication?

Select	Answer
A	When under automatic control
B	Under no circumstances
C	When messages are encrypted
D	When messages are not encrypted

8. - G2A07

Which of the following statements is true of single sideband (SSB)?

Select	Answer
A	SSB is the only voice mode authorized on the 20-, 15-, and 10-meter amateur bands
B	Only one sideband is transmitted; the other sideband and carrier are suppressed
C	SSB is the only voice mode authorized on the 160-, 75-, and 40-meter amateur bands
D	Only one sideband and the carrier are transmitted; the other sideband is suppressed

9. - G2B06

How can you avoid harmful interference on an apparently clear frequency before calling CQ on CW or phone?

Select	Answer
A	Send “QSY” on CW or if using phone, announce “the frequency is in use,” then give your call sign and listen for a response
B	Send “QRL?” on CW, followed by your call sign; or, if using phone, ask if the frequency is in use, followed by your call sign
C	Send the letter “V” in Morse code several times and listen for a response, or say “test” several times and listen for a response
D	Listen for 2 minutes before calling CQ

10. - G2C11

What does the Q signal “QRV” mean?

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

11. - G2D04

Which of the following describes an azimuthal projection map?

Select	Answer
A	A map that shows accurate land masses
B	A map that shows the number of degrees longitude that an amateur satellite appears to move westward at the equator with each orbit
C	A map that shows true bearings and distances from a specific location
D	A map that shows the angle at which an amateur satellite crosses the equator

12. - G2E12

Which of the following describes Winlink?

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

13. - G3A08

How can a geomagnetic storm affect HF propagation?

Select	Answer
A	Degrade ground wave propagation
B	Improve ground wave propagation
C	Improve high-latitude HF propagation
D	Degrade high-latitude HF propagation

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. - G3C06

What is a characteristic of HF scatter?

Select	Answer
A	Signals have a fluttering sound
B	There are very large, sudden swings in signal strength
C	Phone signals have high intelligibility
D	Scatter propagation occurs only at night

16. - G4A09

What is the purpose of delaying RF output after activating a transmitter’s keying line to an external amplifier?

Select	Answer
A	To allow time for the amplifier power supply to reach operating level
B	To prevent transient overmodulation
C	To prevent key clicks on CW
D	To allow time for the amplifier to switch the antenna between the transceiver and the amplifier output

17. - G4B09

When is an analog multimeter preferred to a digital multimeter?

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

18. - G4C03

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

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

19. - G4D04

What does an S meter measure?

Select	Answer
A	Transmitter power output
B	Carrier suppression
C	Received signal strength
D	Impedance

20. - G4E07

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

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

21. - G5A07

What is the term for the inverse of impedance?

Select	Answer
A	Reluctance
B	Susceptance
C	Conductance
D	Admittance

22. - G5B05

How many watts are consumed when a current of 7.0 milliamperes flows through a 1,250-ohm resistance?

Select	Answer
A	Approximately 11 watts
B	Approximately 11 milliwatts
C	Approximately 61 watts
D	Approximately 61 milliwatts

23. - G5C01

What causes a voltage to appear across the secondary winding of a transformer when an AC voltage source is connected across its primary winding?

Select	Answer
A	Mutual inductance
B	Capacitive coupling
C	Displacement current coupling
D	Mutual capacitance

24. - G6A04

Which of the following is characteristic of an electrolytic capacitor?

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

25. - G6B02

What is meant by the term MMIC?

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

26. - G7A11

Which symbol in figure G7-1 represents an NPN junction transistor?

Select	Answer
A	Symbol 2
B	Symbol 7
C	Symbol 1
D	Symbol 11

27. - G7B03

Which of the following describes the function of a two-input AND gate?

Select	Answer
A	Output is high only when both inputs are high
B	Output is high when either or both inputs are low
C	Output is low when either or both inputs are high
D	Output is low only when both inputs are high

28. - G7C03

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

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

29. - G8A12

What is QPSK modulation?

Select	Answer
A	Modulation in which digital data is transmitted using 0-, 90-, 180- and 270-degrees phase shift to represent pairs of bits
B	Modulation using quadra-pole sideband keying to generate spread spectrum signals
C	Modulation using Fast Fourier Transforms to generate frequencies at the first, second, third, and fourth harmonics of the carrier frequency to improve noise immunity
D	Modulation using quasi-parallel to serial conversion to reduce bandwidth

30. - G8B02

What is the term for interference from a signal at twice the IF frequency from the desired signal?

Select	Answer
A	Mixer interference
B	Intermediate interference
C	Image response
D	Quadrature response

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

32. - G9A05

How does the attenuation of coaxial cable change with increasing frequency?

Select	Answer
A	Attenuation is independent of frequency
B	Attenuation increases
C	Attenuation decreases
D	Attenuation follows Marconi’s Law of Attenuation

33. - G9B10

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

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

34. - G9C12

Which of the following is a characteristic of using a gamma match with a Yagi antenna?

Select	Answer
A	All these choices are correct
B	It does not require any inductors or capacitors
C	It is useful for matching multiband antennas
D	It does not require the driven element to be insulated from the boom

35. - G9D12

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

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

Figure G7-1