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. - G1A07

Which of the following frequencies is within the General Class portion of the 20-meter phone band?

Select	Answer
A	14305 kHz
B	14005 kHz
C	14405 kHz
D	14105 kHz

2. - G1B12

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 IEEE
B	The FCC
C	The Control Operator
D	The ITU

3. - 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	1.8 kHz
B	5.6 kHz
C	2.8 kHz
D	3 kHz

4. - G1D05

Which of the following must a person have before they can be an administering VE for a Technician Class license examination?

Select	Answer
A	Possession of a properly obtained telegraphy license
B	Notification to the FCC that you want to give an examination
C	Receipt of a CSCE for General Class
D	An FCC General Class or higher license and VEC accreditation

5. - G1E08

Which of the following is a requirement for a non-licensed person to communicate with a foreign Amateur Radio station from a station with an FCC-granted license at which an FCC licensed control operator is present?

Select	Answer
A	The foreign amateur station must be in a country with which the United States has a third party agreement
B	Information must be exchanged in English
C	All of these choices are correct
D	The control operator must have at least a General Class license

6. - G2A04

Which mode is most commonly used for voice communications on the 17-meter and 12-meter bands?

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

7. - G2B09

Who may be the control operator of an amateur station transmitting in RACES to assist relief operations during a disaster?

Select	Answer
A	Only a person holding an FCC issued amateur operator license
B	A person holding an FCC issued amateur operator license or an appropriate government official
C	Only a RACES net control operator
D	Any control operator when normal communication systems are operational

8. - G2C05

What is the best speed to use when answering a CQ in Morse code?

Select	Answer
A	The speed at which the CQ was sent
B	The fastest speed at which you are comfortable copying
C	A slow speed until contact is established
D	At the standard calling speed of 5 wpm

9. - G2D06

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

Select	Answer
A	Toward the rising Sun
B	180 degrees from its short-path heading
C	Along the gray line
D	Toward the north

10. - G2E08

In what segment of the 20-meter band are most PSK31 operations commonly found?

Select	Answer
A	Below the RTTY segment, near 14.070 MHz
B	At the top of the SSB phone segment, near 14.325 MHz
C	In the middle of the CW segment, near 14.100 MHz
D	At the bottom of the slow-scan TV segment, near 14.230 MHz

11. - G3A08

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

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

12. - G3B05

What usually happens to radio waves with frequencies below the MUF and above the LUF when they are sent into the ionosphere?

Select	Answer
A	They are amplified by interaction with the ionosphere
B	They pass through the ionosphere
C	They are bent and trapped in the ionosphere to circle the Earth
D	They are bent back to the Earth

13. - G3C02

Where on the Earth do ionospheric layers reach their maximum height?

Select	Answer
A	Where the Sun is rising
B	Where the Sun has just set
C	Where the Sun is overhead
D	Where the Sun is on the opposite side of the Earth

14. - G4A05

What is a reason to use Automatic Level Control (ALC) with an RF power amplifier?

Select	Answer
A	To reduce distortion due to excessive drive
B	To balance the transmitter audio frequency response
C	To increase overall efficiency
D	To reduce harmonic radiation

15. - G4B11

Which of the following must be connected to an antenna analyzer when it is being used for SWR measurements?

Select	Answer
A	Transmitter
B	Antenna and feed line
C	Receiver
D	All of these choices are correct

16. - G4C11

Which of the following is a function of a digital signal processor?

Select	Answer
A	To increase antenna gain
B	To provide adequate grounding
C	To remove noise from received signals
D	To increase antenna bandwidth

17. - G4D08

What frequency range is occupied by a 3 kHz LSB signal when the displayed carrier frequency is set to 7.178 MHz?

Select	Answer
A	7.175 to 7.178 MHz
B	7.1765 to 7.1795 MHz
C	7.178 to 7.184 MHz
D	7.178 to 7.181 MHz

18. - G4E08

What is the name of the process by which sunlight is changed directly into electricity?

Select	Answer
A	Photosynthesis
B	Photon decomposition
C	Photovoltaic conversion
D	Photon emission

19. - G5A03

Which of the following causes opposition to the flow of alternating current in an inductor?

Select	Answer
A	Admittance
B	Conductance
C	Reluctance
D	Reactance

20. - G5B02

How does the total current relate to the individual currents in each branch of a purely resistive parallel circuit?

Select	Answer
A	It is the sum of the reciprocal of each individual voltage drop
B	It equals the sum of the currents through each branch
C	It decreases as more parallel branches are added to the circuit
D	It equals the average of each branch current

21. - G5C18

What is the value in microfarads of a 4700 nanofarad (nF) capacitor?

Select	Answer
A	0.47 microfarads
B	47,000 microfarads
C	4.7 microfarads
D	47 microfarads

22. - G6A14

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

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

23. - G6B06

What kind of device is an integrated circuit operational amplifier?

Select	Answer
A	MMIC
B	Digital
C	Programmable Logic
D	Analog

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 steady DC voltage
D	A series of DC pulses at the same frequency as the AC input

25. - G7B14

Which of the following describes a linear amplifier?

Select	Answer
A	Any RF power amplifier used in conjunction with an amateur transceiver
B	A Class C high efficiency amplifier
C	An amplifier used as a frequency multiplier
D	An amplifier in which the output preserves the input waveform

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	Balanced modulator
C	Detector
D	IF amplifier

27. - G8A03

What is the name of the process that changes the instantaneous frequency of an RF wave to convey information?

Select	Answer
A	Frequency transformation
B	Frequency modulation
C	Frequency convolution
D	Frequency conversion

28. - G8B05

What is the approximate bandwidth of a PACTOR3 signal at maximum data rate?

Select	Answer
A	31.5 Hz
B	500 Hz
C	2300 Hz
D	1800 Hz

29. - G8C02

How many data bits are sent in a single PSK31 character?

Select	Answer
A	The number varies
B	5
C	7
D	8

30. - G9A08

If the SWR on an antenna feed line is 5 to 1, and a matching network at the transmitter end of the feed line is adjusted to 1 to 1 SWR, what is the resulting SWR on the feed line?

Select	Answer
A	Between 1 to 1 and 5 to 1 depending on the reflected power at the transmitter
B	5 to 1
C	1 to 1
D	Between 1 to 1 and 5 to 1 depending on the characteristic impedance of the line

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	32 feet
D	24 feet

32. - G9C01

Which of the following would increase the bandwidth of a Yagi antenna?

Select	Answer
A	Closer element spacing
B	Loading coils in series with the element
C	Larger diameter elements
D	Tapered-diameter elements

33. - G9D06

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

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

34. - G0A11

What precaution should you take if you install an indoor transmitting antenna?

Select	Answer
A	Make sure that MPE limits are not exceeded in occupied areas
B	Position the antenna along the edge of a wall to reduce parasitic radiation
C	Make sure the antenna is properly shielded
D	Locate the antenna close to your operating position to minimize feed line radiation

35. - G0B12

What is the purpose of a power supply interlock?

Select	Answer
A	To shut down the unit if it becomes too hot
B	To prevent unauthorized changes to the circuit that would void the manufacturer's warranty
C	To shut off the power supply if too much voltage is produced
D	To ensure that dangerous voltages are removed if the cabinet is opened