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

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

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1. - G1A12

Which of the following applies when the FCC rules designate the Amateur Service as a secondary user on a band?

Select	Answer
A	Amateur stations are allowed to use the band only if they do not cause harmful interference to primary users
B	Amateur stations may only operate during specific hours of the day, while primary users are permitted 24 hour use of the band
C	Amateur stations must record the call sign of the primary service station before operating on a frequency assigned to that station
D	Amateur stations are allowed to use the band only during emergencies

2. - G1B07

What are the restrictions on the use of abbreviations or procedural signals in the Amateur Service?

Select	Answer
A	Only "Q" signals are permitted
B	They are not permitted
C	Only "10 codes" are permitted
D	They may be used if they do not obscure the meaning of a message

3. - G1C05

Which of the following is a limitation on transmitter power on the 28 MHz band for a General Class control operator?

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

4. - G1D10

What is the minimum age that one must be to qualify as an accredited Volunteer Examiner?

Select	Answer
A	There is no age limit
B	21 years
C	18 years
D	12 years

5. - G1E05

What types of messages for a third party in another country may be transmitted by an amateur station?

Select	Answer
A	Any messages, as long as the text of the message is recorded in the station log
B	Only messages for other licensed amateurs
C	Any message, as long as the amateur operator is not paid
D	Only messages relating to Amateur Radio or remarks of a personal character, or messages relating to emergencies or disaster relief

6. - G2A08

Which of the following is a recommended way to break into a contact when using phone?

Select	Answer
A	Say "QRZ" several times followed by your call sign
B	Say your call sign during a break between transmissions by the other stations
C	Say "Break Break Break" and wait for a response
D	Say "CQ" followed by the call sign of either station

7. - G2B12

When is an amateur station allowed to use any means at its disposal to assist another station in distress?

Select	Answer
A	At any time during an actual emergency
B	Only when transmitting in RACES
C	Only on authorized HF frequencies
D	At any time when transmitting in an organized net

8. - G2C11

What does the Q signal "QRV" mean?

Select	Answer
A	I am quitting for the day
B	There is interference on the frequency
C	I am ready to receive messages
D	You are sending too fast

9. - G2D09

What information is traditionally contained in a station log?

Select	Answer
A	Date and time of contact
B	All of these choices are correct
C	Call sign of station contacted and the signal report given
D	Band and/or frequency of the contact

10. - G2E12

Which of the following describes a waterfall display?

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

11. - G3A08

Which of the following effects can a geomagnetic storm have on radio propagation?

Select	Answer
A	Improved ground-wave propagation
B	Improved high-latitude HF propagation
C	Improved chances of UHF ducting
D	Degraded high-latitude HF propagation

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 delayed echoes on the 10-meter band
B	Long skip sky-wave propagation on the 10-meter band
C	Short skip sky-wave propagation on the 10-meter band
D	Severe attenuation of signals 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	Energy is scattered into the skip zone through several different radio wave paths
C	Ground waves are absorbing much of the signal
D	The E-region is not present

14. - G4A03

What is normally meant by operating a transceiver in "split" mode?

Select	Answer
A	The transceiver is set to different transmit and receive frequencies
B	The transmitter is emitting an SSB signal, as opposed to DSB operation
C	The radio is operating at half power
D	The transceiver is operating from an external power source

15. - G4B09

Which of the following can be determined with a field strength meter?

Select	Answer
A	The presence and amount of amplitude distortion of a transmitter
B	The radiation resistance of an antenna
C	The radiation pattern of an antenna
D	The presence and amount of phase distortion of a transmitter

16. - G4C04

What is the effect on an audio device or telephone system if there is interference from a nearby CW transmitter?

Select	Answer
A	On-and-off humming or clicking
B	Severely distorted audio
C	A CW signal at a nearly pure audio frequency
D	A chirpy CW signal

17. - G4D11

How close to the upper edge of the 20-meter General Class band should your displayed carrier frequency be when using 3 kHz wide USB?

Select	Answer
A	At least 1 kHz below the edge of the segment
B	Your displayed carrier frequency may be set at the edge of the band
C	At least 3 kHz below the edge of the band
D	At least 3 kHz above the edge of the band

18. - G4E01

What is the purpose of a capacitance hat on a mobile antenna?

Select	Answer
A	To allow remote tuning
B	To allow automatic band changing
C	To electrically lengthen a physically short antenna
D	To increase the power handling capacity of a whip antenna

19. - G5A04

Which of the following causes opposition to the flow of alternating current in a capacitor?

Select	Answer
A	Reluctance
B	Reactance
C	Conductance
D	Admittance

20. - G5B11

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

Select	Answer
A	1.00
B	1.414
C	0.707
D	2.00

21. - G5C14

Which of the following components should be added to an inductor to increase the inductance?

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

22. - G6A14

Which of the following is an advantage of ceramic capacitors as compared to other types of capacitors?

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

23. - G6B17

What is the general description of a DIN type connector?

Select	Answer
A	A DC power connector rated for currents between 30 and 50 amperes
B	A family of multiple circuit connectors suitable for audio and control signals
C	A special watertight connector for use in marine applications
D	A special connector for microwave interfacing

24. - G7A04

What is the peak-inverse-voltage across the rectifier in a half-wave power supply?

Select	Answer
A	Two times the normal peak output voltage of the power supply
B	One-half the normal peak output voltage of the power supply
C	Equal to the normal output voltage of the power supply
D	One-half the normal output voltage of the power supply

25. - G7B08

How is the efficiency of an RF power amplifier determined?

Select	Answer
A	Add the RF input power to the DC output power
B	Divide the RF output power by the DC input power
C	Divide the DC input power by the DC output power
D	Multiply the RF input power by the reciprocal of the RF output power

26. - G7C11

What is meant by the term "software defined radio" (SDR)?

Select	Answer
A	A computer model that can simulate performance of a radio to aid in the design process
B	A radio in which most major signal processing functions are performed by software
C	A radio that provides computer interface for automatic logging of band and frequency
D	A radio that uses crystal filters designed using software

27. - G8A07

Which of the following phone emissions uses the narrowest bandwidth?

Select	Answer
A	Phase modulation
B	Single sideband
C	Frequency modulation
D	Double sideband

28. - 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	3 kHz
D	5 kHz

29. - G8C12

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

Select	Answer
A	Varicode
B	Viterbi
C	Binary
D	Volumetric

30. - G9A11

What standing wave ratio will result when connecting a 50 ohm feed line to a non-reactive load having 50 ohm impedance?

Select	Answer
A	2:1
B	50:50
C	1:1
D	0:0

31. - G9B10

What is the approximate length for a 1/2 wave dipole antenna cut for 14.250 MHz?

Select	Answer
A	16 feet
B	8 feet
C	24 feet
D	32 feet

32. - G9C15

Approximately how long is each side of the reflector element of a quad antenna?

Select	Answer
A	Slightly more than 1/4 wavelength
B	Slightly more than 1/2 wavelength
C	Slightly less than 1/2 wavelength
D	Slightly less than 1/4 wavelength

33. - G9D07

Which of the following describes a log periodic antenna?

Select	Answer
A	Impedance varies periodically as a function of frequency
B	Gain varies logarithmically as a function of frequency
C	SWR varies periodically as a function of boom length
D	Length and spacing of the elements increase logarithmically from one end of the boom to the other

34. - G0A09

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

Select	Answer
A	An oscilloscope with a high-stability crystal marker generator
B	A calibrated field strength meter with a calibrated antenna
C	A receiver with an S meter
D	An SWR meter with a peak-reading function

35. - G0B05

Which of the following conditions will cause a Ground Fault Circuit Interrupter (GFCI) to disconnect the 120 or 240 Volt AC line power to a device?

Select	Answer
A	Current flowing from one or more of the voltage-carrying wires to the neutral wire
B	All of these choices are correct
C	Current flowing from one or more of the voltage-carrying wires directly to ground
D	Overvoltage on the voltage-carrying wires