US Amateur Radio - General (Element 3, 2015-2019) Practice Test

Anonymous User

US Amateur Radio - General (Element 3, 2015-2019) Practice Test

Logging in (or registering) will help the system to select questions that you need to focus on.

1. - G1A01

On which of the following bands is a General Class license holder granted all amateur frequency privileges?

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

2. - G1B10

What is the power limit for beacon stations?

Select	Answer
A	100 watts PEP output
B	10 watts PEP output
C	20 watts PEP output
D	200 watts PEP output

3. - G1C01

What is the maximum transmitting power an amateur station may use on 10.140 MHz?

Select	Answer
A	1500 watts PEP output
B	2000 watts PEP output
C	1000 watts PEP output
D	200 watts PEP output

4. - G1D03

On which of the following band segments may you operate if you are a Technician Class operator and have a CSCE for General Class privileges?

Select	Answer
A	On any General or Technician Class band segment
B	Only the Technician band segments until your upgrade is posted in the FCC database
C	On any General or Technician Class band segment except 30-meters and 60-meters
D	Only on the Technician band segments until your license arrives in the mail

5. - G1E12

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

6. - G2A02

Which of the following modes is most commonly used for voice communications on the 160-meter, 75-meter, and 40-meter bands?

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

7. - G2B04

When selecting a CW transmitting frequency, what minimum separation should be used to minimize interference to stations on adjacent frequencies?

Select	Answer
A	150 to 500 Hz
B	5 to 50 Hz
C	3 to 6 kHz
D	1 to 3 kHz

8. - G2C09

What does the Q signal "QSL" mean?

Select	Answer
A	We have already confirmed by card
B	I acknowledge receipt
C	We have worked before
D	Send slower

9. - G2D03

What skills learned during hidden transmitter hunts are of help to the Amateur Auxiliary?

Select	Answer
A	Identification of out of band operation
B	Hunters have an opportunity to transmit on non-amateur frequencies
C	Identification of different call signs
D	Direction finding used to locate stations violating FCC Rules

10. - G2E07

What segment of the 80-meter band is most commonly used for digital transmissions?

Select	Answer
A	3775 - 3825 kHz
B	3700 - 3750 kHz
C	3500 - 3525 kHz
D	3570 - 3600 kHz

11. - G3A11

Approximately how long is the typical sunspot cycle?

Select	Answer
A	40 hours
B	28 days
C	8 minutes
D	11 years

12. - G3B02

Which of the following is a good indicator of the possibility of sky-wave propagation on the 6-meter band?

Select	Answer
A	Long skip sky-wave propagation on the 10-meter band
B	Short skip sky-wave propagation on the 10-meter band
C	Severe attenuation of signals on the 10-meter band
D	Long delayed echoes on the 10-meter band

13. - G3C07

What makes HF scatter signals often sound distorted?

Select	Answer
A	The ionospheric layer involved is unstable
B	The E-region is not present
C	Ground waves are absorbing much of the signal
D	Energy is scattered into the skip zone through several different radio wave paths

14. - G4A10

What is the purpose of an electronic keyer?

Select	Answer
A	Computer interface for PSK and RTTY operation
B	VOX operation
C	Automatic transmit/receive switching
D	Automatic generation of strings of dots and dashes for CW operation

15. - G4B07

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

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

16. - G4C01

Which of the following might be useful in reducing RF interference to audio frequency devices?

Select	Answer
A	Bypass inductor
B	Bypass capacitor
C	Forward-biased diode
D	Reverse-biased diode

17. - G4D05

How does a signal that reads 20 dB over S9 compare to one that reads S9 on a receiver, assuming a properly calibrated S meter?

Select	Answer
A	It is 20 times less powerful
B	It is 10 times less powerful
C	It is 20 times more powerful
D	It is 100 times more powerful

18. - G4E03

Which of the following direct, fused power connections would be the best for a 100 watt HF mobile installation?

Select	Answer
A	To the battery using heavy gauge wire
B	To the alternator or generator using heavy gauge wire
C	To the alternator or generator using resistor wire
D	To the battery using resistor wire

19. - G5A05

How does an inductor react to AC?

Select	Answer
A	As the amplitude of the applied AC increases, the reactance increases
B	As the amplitude of the applied AC increases, the reactance decreases
C	As the frequency of the applied AC increases, the reactance decreases
D	As the frequency of the applied AC increases, the reactance increases

20. - G5B06

What is the output PEP from a transmitter if an oscilloscope measures 200 volts peak-to-peak across a 50 ohm dummy load connected to the transmitter output?

Select	Answer
A	400 watts
B	1.4 watts
C	353.5 watts
D	100 watts

21. - G5C10

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

Select	Answer
A	3.3 henrys
B	30 millihenrys
C	0.30 henrys
D	3.3 millihenrys

22. - G6A06

Which of the following is an advantage of using a Schottky diode in an RF switching circuit rather than a standard silicon diode?

Select	Answer
A	Lower inductance
B	Lower capacitance
C	Longer switching times
D	Higher breakdown voltage

23. - G6B14

Which of these connector types is commonly used for audio signals in Amateur Radio stations?

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

24. - G7A11

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

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

25. - G7B04

Which of the following describes the function of a two input NOR gate?

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

26. - G7C02

Which circuit is used to combine signals from the carrier oscillator and speech amplifier then send the result to the filter in some single sideband phone transmitters?

Select	Answer
A	Balanced modulator
B	Discriminator
C	Detector
D	IF amplifier

27. - G8A08

Which of the following is an effect of overmodulation?

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

28. - G8B06

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

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

29. - G8C12

Which type of code is used for sending characters in a PSK31 signal?

Select	Answer
A	Binary
B	Volumetric
C	Viterbi
D	Varicode

30. - G9A14

What is the interaction between high standing wave ratio (SWR) and transmission line loss?

Select	Answer
A	There is no interaction between transmission line loss and SWR
B	High SWR reduces the relative effect of transmission line loss
C	High SWR makes it difficult to measure transmission line loss
D	If a transmission line is lossy, high SWR will increase the loss

31. - G9B03

What happens to the feed point impedance of a ground plane antenna when its radials are changed from horizontal to sloping downward?

Select	Answer
A	It decreases
B	It reaches a maximum at an angle of 45 degrees
C	It increases
D	It stays the same

32. - G9C17

Approximately how long is each leg of a symmetrical delta-loop antenna?

Select	Answer
A	1/3 wavelength
B	1/2 wavelength
C	2/3 wavelength
D	1/4 wavelength

33. - G9D04

What is the primary purpose of antenna traps?

Select	Answer
A	To prevent out of band operation
B	To provide balanced feed point impedance
C	To permit multiband operation
D	To notch spurious frequencies

34. - G0A07

What effect does transmitter duty cycle have when evaluating RF exposure?

Select	Answer
A	High duty cycle transmitters are exempt from RF exposure requirements
B	Low duty cycle transmitters are exempt from RF exposure evaluation requirements
C	A higher transmitter duty cycle permits greater short-term exposure levels
D	A lower transmitter duty cycle permits greater short-term exposure levels

35. - G0B07

Which of these choices should be observed when climbing a tower using a safety belt or harness?

Select	Answer
A	Never lean back and rely on the belt alone to support your weight
B	Confirm that the belt is rated for the weight of the climber and that it is within its allowable service life
C	All of these choices are correct
D	Ensure that all heavy tools are securely fastened to the belt D-ring

Figure G7-1