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. - G1A02

On which of the following bands is phone operation prohibited?

Select	Answer
A	12 meters
B	160 meters
C	30 meters
D	17 meters

2. - G1B11

How does the FCC require an amateur station to be operated in all respects not specifically covered by the Part 97 rules?

Select	Answer
A	In conformance with Amateur Radio custom
B	In conformance with the rules of the IARU
C	All of these choices are correct
D	In conformance with good engineering and good amateur practice

3. - G1C08

What is the maximum symbol rate permitted for RTTY or data emission transmitted at frequencies below 28 MHz?

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

4. - G1D11

If a person has an expired FCC issued amateur radio license of General Class or higher, what is required before they can receive a new license?

Select	Answer
A	The applicant must pass the current element 2 exam
B	There are no requirements other than being able to show a copy of the expired license
C	They must have a letter from the FCC showing they once held an amateur or commercial license
D	The applicant must be able to produce a copy of a page from a call book published in the USA showing his or her name and address

5. - G1E07

With which foreign countries is third party traffic prohibited, except for messages directly involving emergencies or disaster relief communications?

Select	Answer
A	Any country which is not a member of the International Amateur Radio Union (IARU)
B	Every foreign country, unless there is a third party agreement in effect with that country
C	Countries in ITU Region 2
D	Countries in ITU Region 1

6. - G2A05

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

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

7. - G2B07

Which of the following complies with good amateur practice when choosing a frequency on which to initiate a call?

Select	Answer
A	All of these choices are correct
B	Identify your station by transmitting your call sign at least 3 times
C	Check to see if the channel is assigned to another station
D	Follow the voluntary band plan for the operating mode you intend to use

8. - G2C07

When sending CW, what does a "C" mean when added to the RST report?

Select	Answer
A	100 percent copy
B	Report was read from an S meter rather than estimated
C	Chirpy or unstable signal
D	Key clicks

9. - G2D09

What information is traditionally contained in a station log?

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

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 vertical, signal strength is intensity, time is horizontal
C	Frequency is horizontal, signal strength is intensity, time is vertical
D	Frequency is horizontal, signal strength is vertical, time is intensity

11. - G3A16

What is a possible benefit to radio communications resulting from periods of high geomagnetic activity?

Select	Answer
A	Auroras that can reflect VHF signals
B	Improved HF long path propagation
C	Reduced long delayed echoes
D	Higher signal strength for HF signals passing through the polar regions

12. - G3B09

What is the approximate maximum distance along the Earth's surface that is normally covered in one hop using the F2 region?

Select	Answer
A	12,000 miles
B	180 miles
C	1,200 miles
D	2,500 miles

13. - G3C11

Which of the following antenna types will be most effective for skip communications on 40-meters during the day?

Select	Answer
A	A vertical antenna
B	A left-hand circularly polarized antenna
C	A right-hand circularly polarized antenna
D	A horizontal dipole placed between 1/8 and 1/4 wavelength above the ground

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 reduce harmonic radiation
D	To increase overall efficiency

15. - G4B06

What is an advantage of a digital voltmeter as compared to an analog voltmeter?

Select	Answer
A	Better for RF measurements
B	Faster response
C	Better precision for most uses
D	Better for measuring computer circuits

16. - G4C02

Which of the following could be a cause of interference covering a wide range of frequencies?

Select	Answer
A	Using a balun to feed an unbalanced antenna
B	Lack of rectification of the transmitter's signal in power conductors
C	Arcing at a poor electrical connection
D	Not using a balun or line isolator to feed balanced antennas

17. - G4D10

How close to the lower edge of the 40-meter General Class phone segment should your displayed carrier frequency be when using 3 kHz wide LSB?

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

18. - G4E04

Why is it best NOT to draw the DC power for a 100 watt HF transceiver from a vehicle's auxiliary power socket?

Select	Answer
A	The socket is not wired with an RF-shielded power cable
B	The DC polarity of the socket is reversed from the polarity of modern HF transceivers
C	Drawing more than 50 watts from this socket could cause the engine to overheat
D	The socket's wiring may be inadequate for the current drawn by the transceiver

19. - G5A10

What unit is used to measure impedance?

Select	Answer
A	Volt
B	Ohm
C	Watt
D	Ampere

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	100 watts
B	353.5 watts
C	1.4 watts
D	400 watts

21. - G5C09

What is the capacitance of three 100 microfarad capacitors connected in series?

Select	Answer
A	300 microfarads
B	0.30 microfarads
C	33.3 microfarads
D	0.33 microfarads

22. - G6A17

Which of the following is a reason not to use wire-wound resistors in an RF circuit?

Select	Answer
A	The resistor's inductance could make circuit performance unpredictable
B	The resistor could overheat
C	The resistor's internal capacitance would detune the circuit
D	The resistor's tolerance value would not be adequate for such a circuit

23. - G6B11

What is a microprocessor?

Select	Answer
A	A computer on a single integrated circuit
B	A microwave detector, amplifier, and local oscillator on a single integrated circuit
C	A low voltage amplifier used in a microwave transmitter modulator stage
D	A low power analog signal processor used as a microwave detector

24. - G7A12

Which symbol in Figure G7-1 represents a multiple-winding transformer?

Select	Answer
A	Symbol 6
B	Symbol 7
C	Symbol 4
D	Symbol 1

25. - G7B12

Which of these classes of amplifiers has the highest efficiency?

Select	Answer
A	Class C
B	Class A
C	Class AB
D	Class B

26. - G7C04

What circuit is used to combine signals from the IF amplifier and BFO and send the result to the AF amplifier in some single sideband receivers?

Select	Answer
A	Product detector
B	IF filter
C	Balanced modulator
D	RF oscillator

27. - G8A07

Which of the following phone emissions uses the narrowest bandwidth?

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

28. - 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	Multiplier
B	Mixer
C	Pre-emphasis network
D	Reactance modulator

29. - G8C02

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

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

30. - G9A09

What standing wave ratio will result when connecting a 50 ohm feed line to a non-reactive load having 200 ohm impedance?

Select	Answer
A	1:4
B	1:2
C	4:1
D	2:1

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

32. - G9C16

How does the gain of a two-element delta-loop beam compare to the gain of a two-element quad antenna?

Select	Answer
A	About the same
B	3 dB lower
C	3 dB higher
D	2.54 dB higher

33. - G9D05

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

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

34. - G0A02

Which of the following properties is important in estimating whether an RF signal exceeds the maximum permissible exposure (MPE)?

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

35. - G0B09

Why should soldered joints not be used with the wires that connect the base of a tower to a system of ground rods?

Select	Answer
A	A soldered joint will likely be destroyed by the heat of a lightning strike
B	Solder flux will prevent a low conductivity connection
C	Solder has too high a dielectric constant to provide adequate lightning protection
D	The resistance of solder is too high

Figure G7-1