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. - G0B09

Which of the following is true of an emergency generator installation?

Select	Answer
A	The generator should be operated in a well-ventilated area
B	The generator must be insulated from ground
C	All these choices are correct
D	Fuel should be stored near the generator for rapid refueling in case of an emergency

3. - G1A08

Which HF bands have segments exclusively allocated to Amateur Extra licensees?

Select	Answer
A	60 meters, 30 meters, 17 meters, and 12 meters
B	All HF bands except 160 meters and 10 meters
C	80 meters, 40 meters, 20 meters, and 15 meters
D	All HF bands

4. - G1B07

What are the restrictions on the use of abbreviations or procedural signals in the amateur service?

Select	Answer
A	They are not permitted
B	They may be used if they do not obscure the meaning of a message
C	They are limited to those expressly listed in Part 97 of the FCC rules
D	Only “Q” signals are permitted

5. - G1C09

What is the maximum power limit on the 60-meter band?

Select	Answer
A	10 watts RMS
B	ERP of 100 watts PEP with respect to a dipole
C	ERP of 100 watts PEP with respect to an isotropic antenna
D	1500 watts PEP

6. - G1D04

Who must observe the administration of a Technician class license examination?

Select	Answer
A	At least three Volunteer Examiners of Technician class
B	At least three Volunteer Examiners of General class or higher
C	At least two Volunteer Examiners of General class or higher
D	At least two Volunteer Examiners of Technician class or higher

7. - G1E11

On what bands may automatically controlled stations transmitting RTTY or data emissions communicate with other automatically controlled digital stations?

Select	Answer
A	On any band segment where digital operation is permitted
B	Anywhere in the 6-meter or shorter wavelength bands, and in limited segments of some of the HF bands
C	Only in the non-phone Extra Class segments of the bands
D	Anywhere in the non-phone segments of the 10-meter or shorter wavelength bands

8. - G2A01

Which mode is most commonly used for voice communications on frequencies of 14 MHz or higher?

Select	Answer
A	Upper sideband
B	Double sideband
C	Suppressed sideband
D	Lower sideband

9. - G2B01

Which of the following is true concerning access to frequencies?

Select	Answer
A	QSOs in progress have priority
B	Nets have priority
C	Contest operations should yield to non-contest use of frequencies
D	Except during emergencies, no amateur station has priority access to any frequency

10. - G2C02

What should you do if a CW station sends “QRS?”

Select	Answer
A	Increase your power
B	Send slower
C	Repeat everything twice
D	Change frequency

11. - G2D08

Why do many amateurs keep a station log?

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

12. - G2E11

What is the primary purpose of an Amateur Radio Emergency Data Network (AREDN) mesh network?

Select	Answer
A	To provide high-speed data services during an emergency or community event
B	To provide DX spotting reports to aid contesters and DXers
C	To provide FM repeater coverage in remote areas
D	To provide real time propagation data by monitoring amateur radio transmissions worldwide

13. - G3A07

At what point in the solar cycle does the 20-meter band usually support worldwide propagation during daylight hours?

Select	Answer
A	At any point
B	At the summer solstice
C	Only at the minimum point
D	Only at the maximum point

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

15. - G3C06

What is a characteristic of HF scatter?

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

16. - G4A07

What happens as a receiver’s noise reduction control level is increased?

Select	Answer
A	Received frequency may become unstable
B	Received signals may become distorted
C	Received frequency may shift several kHz
D	CW signals may become severely attenuated

17. - G4B07

What signals are used to conduct a two-tone test?

Select	Answer
A	Two swept frequency tones
B	Two audio signals of the same frequency shifted 90 degrees
C	Two non-harmonically related audio signals
D	Two audio frequency range square wave signals of equal amplitude

18. - G4C02

Which of the following could be a cause of interference covering a wide range of frequencies?

Select	Answer
A	Not using a balun or line isolator to feed balanced antennas
B	Using a balun to feed an unbalanced antenna
C	Arcing at a poor electrical connection
D	Lack of rectification of the transmitter’s signal in power conductors

19. - G4D03

What is the effect of an incorrectly adjusted speech processor?

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

20. - G4E08

In what configuration are the individual cells in a solar panel connected together?

Select	Answer
A	Bypass
B	Full-wave bridge
C	Series-parallel
D	Shunt

21. - G5A07

What is the term for the inverse of impedance?

Select	Answer
A	Susceptance
B	Reluctance
C	Admittance
D	Conductance

22. - G5B07

What value of an AC signal produces the same power dissipation in a resistor as a DC voltage of the same value?

Select	Answer
A	The RMS value
B	The reciprocal of the RMS value
C	The peak-to-peak value
D	The peak value

23. - G5C10

What is the inductance of three 10-millihenry inductors connected in parallel?

Select	Answer
A	0.30 henries
B	30 millihenries
C	3.3 henries
D	3.3 millihenries

24. - G6A05

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

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

25. - G6B07

Which of the following describes a type N connector?

Select	Answer
A	A moisture-resistant RF connector useful to 10 GHz
B	A nickel plated version of the PL-259
C	A small bayonet connector used for data circuits
D	A low noise figure VHF connector

26. - G7A09

Which symbol in figure G7-1 represents a field effect transistor?

Select	Answer
A	Symbol 2
B	Symbol 4
C	Symbol 5
D	Symbol 1

27. - G7B10

Which of the following describes a linear amplifier?

Select	Answer
A	Any RF power amplifier used in conjunction with an amateur transceiver
B	An amplifier used as a frequency multiplier
C	An amplifier in which the output preserves the input waveform
D	A Class C high efficiency amplifier

28. - G7C01

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

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

29. - G8A02

What is the name of the process that changes the phase angle of an RF signal to convey information?

Select	Answer
A	Phase transformation
B	Phase modulation
C	Phase inversion
D	Phase convolution

30. - G8B09

Why is it good to match receiver bandwidth to the bandwidth of the operating mode?

Select	Answer
A	It improves impedance matching of the antenna
B	It is required by FCC rules
C	It results in the best signal-to-noise ratio
D	It minimizes power consumption in the receiver

31. - G8C14

Which of the following describes a waterfall display?

Select	Answer
A	Frequency is horizontal, signal strength is intensity, time is vertical
B	Frequency is vertical, signal strength is horizontal, time is intensity
C	Frequency is horizontal, signal strength is vertical, time is intensity
D	Frequency is vertical, signal strength is intensity, time is horizontal

32. - G9A10

What standing wave ratio results from connecting a 50-ohm feed line to a 10-ohm resistive load?

Select	Answer
A	2:1
B	1:5
C	1:2
D	5:1

33. - G9B04

What is the radiation pattern of a dipole antenna in free space in a plane containing the conductor?

Select	Answer
A	It is a circle (equal radiation in all directions)
B	It has a pair of lobes on one side of the antenna and a single lobe on the other side
C	It is a figure-eight off both ends of the antenna
D	It is a figure-eight at right angles to the antenna

34. - G9C09

In free space, how does the gain of two three-element, horizontally polarized Yagi antennas spaced vertically 1/2 wavelength apart typically compare to the gain of a single three-element Yagi?

Select	Answer
A	Approximately 1.5 dB higher
B	Approximately 3 dB higher
C	Approximately 6 dB higher
D	Approximately 9 dB higher

35. - G9D05

What is an advantage of vertically stacking horizontally polarized Yagi antennas?

Select	Answer
A	It narrows the main lobe in azimuth
B	It narrows the main lobe in elevation
C	It allows simultaneous vertical and horizontal polarization
D	It allows quick selection of vertical or horizontal polarization

Figure G7-1