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. - G0A09

What type of instrument can be used to accurately measure an RF field strength?

Select	Answer
A	An SWR meter with a peak-reading function
B	A calibrated field strength meter with a calibrated antenna
C	An oscilloscope with a high-stability crystal marker generator
D	A receiver with digital signal processing (DSP) noise reduction

2. - G0B13

Where should lightning arrestors be located?

Select	Answer
A	At the closest power pole ground electrode
B	On the antenna, opposite the feed point
C	In series with each ground lead
D	Where the feed lines enter the building

3. - G1A01

On which HF and/or MF amateur bands are there portions where General class licensees cannot transmit?

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

4. - G1B09

On what HF frequencies are automatically controlled beacons permitted?

Select	Answer
A	On any frequency if power is less than 1 watt
B	21.08 MHz to 21.09 MHz
C	On any frequency if transmissions are in Morse code
D	28.20 MHz to 28.30 MHz

5. - G1C05

What is the limit for transmitter power on the 28 MHz band for a General Class control operator?

Select	Answer
A	1000 watts PEP output
B	100 watts PEP output
C	2000 watts PEP output
D	1500 watts PEP output

6. - G1D08

Which of the following criteria must be met for a non-US citizen to be an accredited Volunteer Examiner?

Select	Answer
A	The person’s home citizenship must be in ITU region 2
B	The person must hold an FCC granted amateur radio license of General class or above
C	None of these choices is correct; a non-US citizen cannot be a Volunteer Examiner
D	The person must be a resident of the US for a minimum of 5 years

7. - G1E11

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

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

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. - G2B08

What is the voluntary band plan restriction for US stations transmitting within the 48 contiguous states in the 50.1 MHz to 50.125 MHz band segment?

Select	Answer
A	Only SSTV contacts
B	Only contacts with stations not within the 48 contiguous states
C	Only digital contacts
D	Only contacts with other stations within the 48 contiguous states

10. - G2C07

When sending CW, what does a “C” mean when added to the RST report?

Select	Answer
A	Report was read from an S meter rather than estimated
B	100 percent copy
C	Chirpy or unstable signal
D	Key clicks

11. - G2D08

Why do many amateurs keep a station log?

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

12. - G2E05

What is the standard sideband for JT65, JT9, FT4, or FT8 digital signal when using AFSK?

Select	Answer
A	LSB
B	USB
C	DSB
D	SSB

13. - G3A05

What is the solar flux index?

Select	Answer
A	Another name for the American sunspot number
B	A measure of the highest frequency that is useful for ionospheric propagation between two points on Earth
C	A count of sunspots that is adjusted for solar emissions
D	A measure of solar radiation with a wavelength of 10.7 centimeters

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	12,000 miles
C	180 miles
D	1,200 miles

15. - G3C08

Why are HF scatter signals in the skip zone usually weak?

Select	Answer
A	Propagation is via ducts in the F region, which absorb most of the energy
B	Propagation is via ground waves, which absorb most of the signal energy
C	Only a small part of the signal energy is scattered into the skip zone
D	Signals are scattered from the magnetosphere, which is not a good reflector

16. - G4A12

Which of the following is a common use of the dual-VFO feature on a transceiver?

Select	Answer
A	To allow transmitting on two frequencies at once
B	To permit full duplex operation -- that is, transmitting and receiving at the same time
C	To transmit on one frequency and listen on another
D	To improve frequency accuracy by allowing variable frequency output (VFO) operation

17. - G4B12

What effect can strong signals from nearby transmitters have on an antenna analyzer?

Select	Answer
A	Generation of harmonics which interfere with frequency readings
B	Desensitization which can cause intermodulation products which interfere with impedance readings
C	All these choices are correct
D	Received power that interferes with SWR readings

18. - G4C12

Why must all metal enclosures of station equipment be grounded?

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

19. - G4D04

What does an S meter measure?

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

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	All these choices are correct
C	The fuel delivery system
D	The battery charging system

21. - G5A09

What unit is used to measure reactance?

Select	Answer
A	Siemens
B	Ohm
C	Farad
D	Ampere

22. - G5B11

What is the ratio of PEP to average power for an unmodulated carrier?

Select	Answer
A	0.707
B	2.00
C	1.00
D	1.414

23. - G5C13

Which of the following components should be added to a capacitor to increase the capacitance?

Select	Answer
A	An inductor in series
B	An inductor in parallel
C	A capacitor in parallel
D	A capacitor in series

24. - G6A08

Which of the following is characteristic of low voltage ceramic capacitors?

Select	Answer
A	High stability
B	Tight tolerance
C	Comparatively low cost
D	High capacitance for given volume

25. - G6B07

Which of the following describes a type N connector?

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

26. - G7A02

Which of the following components are used in a power supply filter network?

Select	Answer
A	Capacitors and inductors
B	Diodes
C	Transformers and transducers
D	All these choices are correct

27. - G7B09

What determines the frequency of an LC oscillator?

Select	Answer
A	The inductance and capacitance in the tank circuit
B	The number of stages in the counter
C	The number of stages in the divider
D	The time delay of the lag circuit

28. - G7C01

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

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

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 inversion
C	Phase modulation
D	Phase convolution

30. - G8B03

What is another term for the mixing of two RF signals?

Select	Answer
A	Synthesizing
B	Phase inversion
C	Frequency inversion
D	Heterodyning

31. - G8C06

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

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

32. - G9A06

In what units is RF feed line loss usually expressed?

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

33. - G9B08

How does the feed point impedance of a 1/2 wave dipole change as the feed point is moved from the center toward the ends?

Select	Answer
A	It steadily increases
B	It peaks at about 1/8 wavelength from the end
C	It is unaffected by the location of the feed point
D	It steadily decreases

34. - G9C07

What does “front-to-back ratio” mean in reference to a Yagi antenna?

Select	Answer
A	The ratio of forward gain to dipole gain
B	The power radiated in the major lobe compared to that in the opposite direction
C	The relative position of the driven element with respect to the reflectors and directors
D	The number of directors versus the number of reflectors

35. - G9D06

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

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