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. - G0A02

Which of the following is used to determine RF exposure from a transmitted signal?

Select	Answer
A	All these choices are correct
B	Its frequency
C	Its power density
D	Its duty cycle

2. - G0B06

Which of the following is covered by the National Electrical Code?

Select	Answer
A	Electrical safety of the station
B	RF exposure limits of the human body
C	Acceptable bandwidth limits
D	Acceptable modulation limits

3. - G1A09

Which of the following frequencies is within the General class portion of the 15-meter band?

Select	Answer
A	14250 kHz
B	21300 kHz
C	18155 kHz
D	24900 kHz

4. - G1B11

Who or what determines “good engineering and good amateur practice,” as applied to the operation of an amateur station in all respects not covered by the Part 97 rules?

Select	Answer
A	The FCC
B	The control operator
C	The ITU
D	The IEEE

5. - G1C03

What is the maximum bandwidth permitted by FCC rules for amateur radio stations transmitting on USB frequencies in the 60-meter band?

Select	Answer
A	5.6 kHz
B	3 kHz
C	1.8 kHz
D	2.8 kHz

6. - G1D09

How long is a Certificate of Successful Completion of Examination (CSCE) valid for exam element credit?

Select	Answer
A	365 days
B	For as long as your current license is valid
C	30 days
D	180 days

7. - G1E06

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

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

8. - G2A03

Which mode is most commonly used for SSB voice communications in the VHF and UHF bands?

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

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

10. - G2C02

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

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

11. - G2D06

How is a directional antenna pointed when making a “long-path” contact with another station?

Select	Answer
A	Toward the north
B	Toward the rising sun
C	180 degrees from the station’s short-path heading
D	Along the gray line

12. - G2E13

What is another name for a Winlink Remote Message Server?

Select	Answer
A	Terminal Node Controller
B	RJ-45
C	Gateway
D	Printer/Server

13. - G3A02

What effect does a sudden ionospheric disturbance have on the daytime ionospheric propagation?

Select	Answer
A	It disrupts communications via satellite more than direct communications
B	None, because only areas on the night side of the Earth are affected
C	It disrupts signals on lower frequencies more than those on higher frequencies
D	It enhances propagation on all HF frequencies

14. - G3B01

What is a characteristic of skywave signals arriving at your location by both short-path and long-path propagation?

Select	Answer
A	Signal strength increased by 3 dB
B	A slightly delayed echo might be heard
C	The signal might be cancelled causing severe attenuation
D	Periodic fading approximately every 10 seconds

15. - G3C11

Which ionospheric region is the most absorbent of signals below 10 MHz during daylight hours?

Select	Answer
A	The D region
B	The E region
C	The F2 region
D	The F1 region

16. - G4A12

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

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

17. - G4B08

What transmitter performance parameter does a two-tone test analyze?

Select	Answer
A	Percentage of frequency modulation
B	Percentage of suppression of the carrier and undesired sideband for SSB
C	Linearity
D	Percentage of carrier phase shift

18. - G4C11

What technique helps to minimize RF “hot spots” in an amateur station?

Select	Answer
A	Using surge suppressor power outlets
B	Bonding all equipment enclosures together
C	Building all equipment in a metal enclosure
D	Placing low-pass filters on all feed lines

19. - G4D03

What is the effect of an incorrectly adjusted speech processor?

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

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. - G5A12

What occurs in an LC circuit at resonance?

Select	Answer
A	Inductive reactance and capacitive reactance cancel
B	Resistance is cancelled
C	The circuit radiates all its energy in the form of radio waves
D	Current and voltage are equal

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

23. - G5C02

What is the output voltage if an input signal is applied to the secondary winding of a 4:1 voltage step-down transformer instead of the primary winding?

Select	Answer
A	Additional resistance must be added in series with the primary to prevent overload
B	Additional resistance must be added in parallel with the secondary to prevent overload
C	The input voltage is divided by 4
D	The input voltage is multiplied by 4

24. - G6A11

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

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

25. - G6B03

Which of the following is an advantage of CMOS integrated circuits compared to TTL integrated circuits?

Select	Answer
A	Low power consumption
B	High power handling capability
C	Better suited for power supply regulation
D	Better suited for RF amplification

26. - G7A02

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

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

27. - G7B11

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

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

28. - G7C07

What term specifies a filter’s attenuation inside its passband?

Select	Answer
A	Q
B	Return loss
C	Ultimate rejection
D	Insertion loss

29. - G8A08

Which of the following is an effect of overmodulation?

Select	Answer
A	Frequency drift
B	Insufficient bandwidth
C	Excessive bandwidth
D	Insufficient audio

30. - G8B04

What is the stage in a VHF FM transmitter that generates a harmonic of a lower frequency signal to reach the desired operating frequency?

Select	Answer
A	Balanced converter
B	Mixer
C	Reactance modulator
D	Multiplier

31. - G8C09

Which is true of mesh network microwave nodes?

Select	Answer
A	Links between two nodes in a network may have different frequencies and bandwidths
B	If one node fails, a packet may still reach its target station via an alternate node
C	More nodes reduce overall microwave out of band interference
D	Having more nodes increases signal strengths

32. - G9A10

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

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

33. - G9B11

What is the approximate length for a 1/2 wave dipole antenna cut for 3.550 MHz?

Select	Answer
A	263 feet
B	132 feet
C	84 feet
D	42 feet

34. - G9C07

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

Select	Answer
A	The power radiated in the major lobe compared to that in the opposite direction
B	The ratio of forward gain to dipole gain
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. - G9D05

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

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