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	Post a copy of FCC Part 97.13 in the station
B	All these choices are correct
C	Perform a routine RF exposure evaluation and prevent access to any identified high exposure areas
D	Notify neighbors within a 100-foot radius of the antenna of the existence of the station and power levels

2. - G0B01

Which wire or wires in a four-conductor 240 VAC circuit should be attached to fuses or circuit breakers?

Select	Answer
A	All wires
B	Only the ground wire
C	Only the hot wires
D	Only the neutral wire

3. - G1A10

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

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

4. - G1B02

With which of the following conditions must beacon stations comply?

Select	Answer
A	All these choices are correct
B	The frequency must be posted on the internet or published in a national periodical
C	No more than one beacon station may transmit in the same band from the same station location
D	The frequency must be coordinated with the National Beacon Organization

5. - G1C07

What must be done before using a new digital protocol on the air?

Select	Answer
A	Type-certify equipment to FCC standards
B	Publicly document the technical characteristics of the protocol
C	Obtain an experimental license from the FCC
D	Submit a rule-making proposal to the FCC describing the codes and methods of the technique

6. - G1D06

Until an upgrade to General class is shown in the FCC database, when must a Technician licensee identify with “AG” after their call sign?

Select	Answer
A	Whenever they operate on any amateur frequency
B	A special identifier is not required if their General class license application has been filed with the FCC
C	Whenever they operate using Technician frequency privileges
D	Whenever they operate using General class frequency privileges

7. - G1E06

The frequency allocations of which ITU region apply to radio amateurs operating in North and South America?

Select	Answer
A	Region 1
B	Region 2
C	Region 4
D	Region 3

8. - G2A08

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

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

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

10. - G2C08

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

Select	Answer
A	KN
B	SK
C	BK
D	AR

11. - G2D08

Why do many amateurs keep a station log?

Select	Answer
A	The FCC requires a log of all international third-party traffic
B	The FCC requires a log of all international contacts
C	The log provides evidence of operation needed to renew a license without retest
D	To help with a reply if the FCC requests information about your station

12. - G2E01

Which mode is normally used when sending RTTY signals via AFSK with an SSB transmitter?

Select	Answer
A	CW
B	DSB
C	LSB
D	USB

13. - G3A11

How long does it take a coronal mass ejection to affect radio propagation on Earth?

Select	Answer
A	14 days
B	15 hours to several days
C	28 days
D	4 to 8 minutes

14. - G3B04

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

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

15. - G3C04

What does the term “critical angle” mean, as applied to radio wave propagation?

Select	Answer
A	The lowest takeoff angle that will return a radio wave to Earth under specific ionospheric conditions
B	The long path azimuth of a distant station
C	The short path azimuth of a distant station
D	The highest takeoff angle that will return a radio wave to Earth under specific ionospheric conditions

16. - G4A11

Why should the ALC system be inactive when transmitting AFSK data signals?

Select	Answer
A	ALC will invert the modulation of the AFSK mode
B	All these choices are correct
C	When using digital modes, too much ALC activity can cause the transmitter to overheat
D	The ALC action distorts the signal

17. - G4B09

When is an analog multimeter preferred to a digital multimeter?

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

18. - G4C12

Why must all metal enclosures of station equipment be grounded?

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

19. - G4D08

What frequency range is occupied by a 3 kHz LSB signal when the displayed carrier frequency is set to 7.178 MHz?

Select	Answer
A	7.1765 MHz to 7.1795 MHz
B	7.178 MHz to 7.181 MHz
C	7.178 MHz to 7.184 MHz
D	7.175 MHz to 7.178 MHz

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	A series resistor must be in place
C	Ground the solar panel outer metal framework
D	The solar panel must have a charge controller

21. - G5A10

Which of the following devices can be used for impedance matching at radio frequencies?

Select	Answer
A	All these choices are correct
B	A length of transmission line
C	A transformer
D	A Pi-network

22. - G5B02

How does the total current relate to the individual currents in a circuit of parallel resistors?

Select	Answer
A	It equals the sum of the currents through each branch
B	It equals the average of the branch currents
C	It is the sum of the reciprocal of each individual voltage drop
D	It decreases as more parallel branches are added to the circuit

23. - G5C05

Why is the primary winding wire of a voltage step-up transformer usually a larger size than that of the secondary winding?

Select	Answer
A	To accommodate the higher current of the primary
B	To prevent parasitic oscillations due to resistive losses in the primary
C	To ensure that the volume of the primary winding is equal to the volume of the secondary winding
D	To improve the coupling between the primary and secondary

24. - G6A06

Why should wire-wound resistors not be used in RF circuits?

Select	Answer
A	The resistor’s inductance could make circuit performance unpredictable
B	The resistor could overheat
C	The resistor’s internal capacitance would detune the circuit
D	The resistor’s tolerance value would not be adequate

25. - G6B12

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

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

26. - G7A01

What is the function of a power supply bleeder resistor?

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

27. - G7B01

What is the purpose of neutralizing an amplifier?

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

28. - G7C01

What circuit is used to select one of the sidebands from a balanced modulator?

Select	Answer
A	Filter
B	RF amplifier
C	IF amplifier
D	Carrier oscillator

29. - G8A14

What is link margin?

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

30. - G8B06

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

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

31. - G8C01

On what band do amateurs share channels with the unlicensed Wi-Fi service?

Select	Answer
A	2.4 GHz
B	10.7 GHz
C	432 MHz
D	902 MHz

32. - G9A06

In what units is RF feed line loss usually expressed?

Select	Answer
A	Ohms per 100 feet
B	Ohms per 1,000 feet
C	Decibels per 100 feet
D	Decibels per 1,000 feet

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

34. - G9C05

What is the primary effect of increasing boom length and adding directors to a Yagi antenna?

Select	Answer
A	Front-to-back ratio decreases
B	Resonant frequency is lower
C	Gain increases
D	Beamwidth increases

35. - G9D06

Which of the following is an advantage of a log-periodic antenna?

Select	Answer
A	Harmonic suppression
B	Wide bandwidth
C	Polarization diversity
D	Higher gain per element than a Yagi antenna