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. - G1A13

What is the appropriate action if, when operating on either the 30-meter or 60-meter bands, a station in the primary service interferes with your contact?

Select	Answer
A	Attempt to contact the station and request that it stop the interference
B	Move to a clear frequency or stop transmitting
C	Increase your transmitter's power to overcome the interference
D	Notify the FCCs regional Engineer in Charge of the interference

2. - G1B02

With which of the following conditions must beacon stations comply?

Select	Answer
A	There must be no more than one beacon signal transmitting in the same band from the same station location
B	A beacon station may not use automatic control
C	The frequency must be posted on the Internet or published in a national periodical
D	The frequency must be coordinated with the National Beacon Organization

3. - G1C07

What is the maximum symbol rate permitted for RTTY or data emission transmission on the 20-meter band?

Select	Answer
A	19.6 kilobaud
B	300 baud
C	1200 baud
D	56 kilobaud

4. - G1D02

What license examinations may you administer when you are an accredited VE holding a General Class operator license?

Select	Answer
A	General only
B	General and Technician
C	Technician only
D	Extra, General and Technician

5. - G1E09

What language must be used when identifying your station if you are using a language other than English in making a contact using phone emission?

Select	Answer
A	English, Spanish, French, or German
B	The language being used for the contact
C	English only
D	Any language recognized by the United Nations

6. - G2A05

Which mode of voice communication is most commonly used on the HF amateur bands?

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

7. - G2B01

Which of the following is true concerning access to frequencies in non-emergency situations?

Select	Answer
A	Contest operations must always yield to non-contest use of frequencies
B	Nets always have priority
C	Except during FCC declared emergencies, no one has priority access to frequencies
D	QSOs in progress always have priority

8. - G2C04

What does the Q signal "QRL?" mean?

Select	Answer
A	"Are you operating full break-in" or "Can you operate full break-in?"
B	"Will you keep the frequency clear?"
C	"Are you busy?", or "Is this frequency in use?"
D	"Are you listening only for a specific station?"

9. - G2D05

When is it permissible to communicate with amateur stations in countries outside the areas administered by the Federal Communications Commission?

Select	Answer
A	When the contact is with amateurs in any country as long as the communication is conducted in English
B	Only when the foreign country is a member of the International Amateur Radio Union
C	Only when the foreign country has a formal third party agreement filed with the FCC
D	When the contact is with amateurs in any country except those whose administrations have notified the ITU that they object to such communications

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. - G3A14

How are radio communications usually affected by the charged particles that reach the Earth from solar coronal holes?

Select	Answer
A	HF communications are improved
B	VHF/UHF ducting is disturbed
C	HF communications are disturbed
D	VHF/UHF ducting is improved

12. - G3B04

What is a reliable way to determine if the MUF is high enough to support skip propagation between your station and a distant location on frequencies between 14 and 30 MHz?

Select	Answer
A	Check the strength of TV signals from Western Europe
B	Send a series of dots on the band and listen for echoes from your signal
C	Check the strength of signals in the MF AM broadcast band
D	Listen for signals from an international beacon in the frequency range you plan to use

13. - G3C12

Which ionospheric layer is the most absorbent of long skip signals during daylight hours on frequencies below 10 MHz?

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

14. - G4A13

What is one reason to use the attenuator function that is present on many HF transceivers?

Select	Answer
A	To reduce signal overload due to strong incoming signals
B	To slow down received CW signals for better copy
C	To reduce the transmitter power when driving a linear amplifier
D	To reduce power consumption when operating from batteries

15. - G4B12

What problem can occur when making measurements on an antenna system with an antenna analyzer?

Select	Answer
A	Strong signals from nearby transmitters can affect the accuracy of measurements
B	The analyzer can be damaged if measurements outside the ham bands are attempted
C	Connecting the analyzer to an antenna can cause it to absorb harmonics
D	Permanent damage to the analyzer may occur if it is operated into a high SWR

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

17. - G4D06

Where is an S meter found?

Select	Answer
A	In a receiver
B	In a conductance bridge
C	In an SWR bridge
D	In a transmitter

18. - G4E09

What is the approximate open-circuit voltage from a fully illuminated silicon photovoltaic cell?

Select	Answer
A	0.5 VDC
B	0.02 VDC
C	0.2 VDC
D	1.38 VDC

19. - G5A06

How does a capacitor react to AC?

Select	Answer
A	As the frequency 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 amplitude of the applied AC increases, the reactance increases

20. - G5B11

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

Select	Answer
A	2.00
B	0.707
C	1.414
D	1.00

21. - G5C16

Why is the conductor of the primary winding of many voltage step up transformers larger in diameter than the conductor of the secondary winding?

Select	Answer
A	To improve the coupling between the primary and secondary
B	To insure that the volume of the primary winding is equal to the volume of the secondary winding
C	To prevent parasitic oscillations due to resistive losses in the primary
D	To accommodate the higher current of the primary

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

23. - G6B09

Which of the following is a characteristic of a liquid crystal display?

Select	Answer
A	It requires ambient or back lighting
B	All of these choices are correct
C	It has a wide viewing angle
D	It offers a wide dynamic range

24. - G7A07

What is the output waveform of an unfiltered full-wave rectifier connected to a resistive load?

Select	Answer
A	A series of DC pulses at twice the frequency of the AC input
B	A sine wave at half the frequency of the AC input
C	A series of DC pulses at the same frequency as the AC input
D	A steady DC voltage

25. - G7B03

Which of the following describes the function of a two input AND gate?

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

26. - G7C03

What circuit is used to process signals from the RF amplifier and local oscillator then send the result to the IF filter in a superheterodyne receiver?

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

27. - G8A02

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

Select	Answer
A	Phase modulation
B	Phase convolution
C	Radian inversion
D	Angle convolution

28. - G8B10

What is the relationship between transmitted symbol rate and bandwidth?

Select	Answer
A	Lower symbol rates require wider bandwidth
B	Symbol rate and bandwidth are not related
C	Higher symbol rates require wider bandwidth
D	Bandwidth is always half the symbol rate

29. - G8C04

Which of the following describes Baudot code?

Select	Answer
A	A code using error detection and correction
B	A 5-bit code with additional start and stop bits
C	A code using SELCAL and LISTEN
D	A 7-bit code with start, stop and parity bits

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	1:1
B	50:50
C	0:0
D	2:1

31. - G9B04

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

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

32. - G9C20

What is meant by the terms dBi and dBd when referring to antenna gain?

Select	Answer
A	dBi refers to an ionospheric reflecting antenna, dBd refers to a dissipative antenna
B	dBi refers to an isometric antenna, dBd refers to a discone antenna
C	dBi refers to an isotropic antenna, dBd refers to a dipole antenna
D	dBi refers to an inverted-vee antenna, dBd refers to a downward reflecting antenna

33. - G9D05

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

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

34. - G0A08

Which of the following steps must an amateur operator take to ensure compliance with RF safety regulations when transmitter power exceeds levels specified in FCC Part 97.13?

Select	Answer
A	All of these choices are correct
B	Perform a routine RF exposure evaluation
C	Post a copy of OET Bulletin 65 in the station
D	Post a copy of FCC Part 97.13 in the station

35. - G0B03

Which size of fuse or circuit breaker would be appropriate to use with a circuit that uses AWG number 14 wiring?

Select	Answer
A	100 amperes
B	60 amperes
C	15 amperes
D	30 amperes