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	160 meters
B	12 meters
C	30 meters
D	17 meters

2. - G1B03

Which of the following is a purpose of a beacon station as identified in the FCC rules?

Select	Answer
A	Observation of propagation and reception
B	Automatic identification of repeaters
C	Identifying net frequencies
D	Transmission of bulletins of general interest to Amateur Radio licensees

3. - G1C06

Which of the following is a limitation on transmitter power on the 1.8 MHz band?

Select	Answer
A	1000 watts PEP output
B	200 watts PEP output
C	1200 watts PEP output
D	1500 watts PEP output

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. - G1E02

When may a 10-meter repeater retransmit the 2-meter signal from a station having a Technician Class control operator?

Select	Answer
A	Only if the station on 10-meters is operating under a Special Temporary Authorization allowing such retransmission
B	Under no circumstances
C	Only during an FCC declared general state of communications emergency
D	Only if the 10-meter repeater control operator holds at least a General Class license

6. - G2A03

Which of the following is most commonly used for SSB voice communications in the VHF and UHF bands?

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

7. - G2B08

What is the "DX window" in a voluntary band plan?

Select	Answer
A	An FCC rule that allows only digital contacts in that portion of the band
B	An FCC rule that prohibits contacts between stations within the United States and possessions in that portion of the band
C	A portion of the band that should not be used for contacts between stations within the 48 contiguous United States
D	A portion of the band that has been voluntarily set aside for digital contacts only

8. - G2C09

What does the Q signal "QSL" mean?

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

9. - G2D08

What is a reason why many amateurs keep a station log?

Select	Answer
A	The ITU requires a log of all international contacts
B	The ITU requires a log of all international third party traffic
C	The log provides evidence of operation needed to renew a license without retest
D	To help with a reply if the FCC requests information

10. - G2E11

What is indicated on a waterfall display by one or more vertical lines adjacent to a PSK31 signal?

Select	Answer
A	Long Path propagation
B	Overmodulation
C	Backscatter propagation
D	Insufficient modulation

11. - G3A11

Approximately how long is the typical sunspot cycle?

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

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

13. - G3C05

Why is long distance communication on the 40-meter, 60-meter, 80-meter and 160-meter bands more difficult during the day?

Select	Answer
A	The F layer is unstable during daylight hours
B	The E layer is unstable during daylight hours
C	The F layer absorbs signals at these frequencies during daylight hours
D	The D layer absorbs signals at these frequencies during daylight hours

14. - G4A02

What is one advantage of selecting the opposite or "reverse" sideband when receiving CW signals on a typical HF transceiver?

Select	Answer
A	Accidental out of band operation can be prevented
B	It may be possible to reduce or eliminate interference from other signals
C	Interference from impulse noise will be eliminated
D	More stations can be accommodated within a given signal passband

15. - G4B12

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

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

16. - G4C01

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

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

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	7.1765 to 7.1795 MHz
B	7.175 to 7.178 MHz
C	7.178 to 7.181 MHz
D	7.178 to 7.184 MHz

18. - G4E02

What is the purpose of a corona ball on a HF mobile antenna?

Select	Answer
A	To increase the "Q" of the antenna
B	To reduce high voltage discharge from the tip of the antenna
C	To reduce the chance of damage if the antenna should strike an object
D	To narrow the operating bandwidth of the antenna

19. - G5A10

What unit is used to measure impedance?

Select	Answer
A	Watt
B	Volt
C	Ampere
D	Ohm

20. - G5B14

What is the output PEP from a transmitter if an oscilloscope measures 500 volts peak-to-peak across a 50 ohm resistive load connected to the transmitter output?

Select	Answer
A	625 watts
B	2500 watts
C	8.75 watts
D	5000 watts

21. - G5C10

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

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

22. - G6A01

What is the minimum allowable discharge voltage for maximum life of a standard 12 volt lead acid battery?

Select	Answer
A	6 volts
B	8.5 volts
C	12 volts
D	10.5 volts

23. - G6B04

What is meant by the term ROM?

Select	Answer
A	Resistant to Overload Memory
B	Read Only Memory
C	Random Operational Memory
D	Resistor Operated Memory

24. - G7A04

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

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

25. - G7B07

What are the basic components of virtually all sine wave oscillators?

Select	Answer
A	A frequency multiplier and a mixer
B	A circulator and a filter operating in a feed-forward loop
C	A filter and an amplifier operating in a feedback loop
D	An amplifier and a divider

26. - G7C01

Which of the following is used to process signals from the balanced modulator then send them to the mixer in some single sideband phone transmitters?

Select	Answer
A	IF amplifier
B	Carrier oscillator
C	RF amplifier
D	Filter

27. - G8A09

What control is typically adjusted for proper ALC setting on an amateur single sideband transceiver?

Select	Answer
A	Transmit audio or microphone gain
B	Attenuator level
C	Antenna inductance or capacitance
D	The RF clipping level

28. - G8B07

What is the frequency deviation for a 12.21 MHz reactance modulated oscillator in a 5 kHz deviation, 146.52 MHz FM phone transmitter?

Select	Answer
A	60 kHz
B	416.7 Hz
C	5 kHz
D	101.75 Hz

29. - G8C10

How does forward error correction (FEC) allow the receiver to correct errors in received data packets?

Select	Answer
A	By controlling transmitter output power for optimum signal strength
B	By transmitting redundant information with the data
C	By using a parity bit with each character
D	By using the varicode character set

30. - G9A14

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

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

31. - G9B06

Where should the radial wires of a ground-mounted vertical antenna system be placed?

Select	Answer
A	As high as possible above the ground
B	At the center of the antenna
C	Parallel to the antenna element
D	On the surface of the Earth or buried a few inches below the ground

32. - G9C08

What is meant by the "main lobe" of a directive antenna?

Select	Answer
A	The magnitude of the maximum vertical angle of radiation
B	The maximum voltage standing wave point on a radiating element
C	The point of maximum current in a radiating antenna element
D	The direction of maximum radiated field strength from the antenna

33. - G9D11

Which of the following is a disadvantage of multiband antennas?

Select	Answer
A	They have poor harmonic rejection
B	They must be fed with open wire line
C	They present low impedance on all design frequencies
D	They must be used with an antenna tuner

34. - G0A11

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

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

35. - G0B01

Which wire or wires in a four-conductor connection should be attached to fuses or circuit breakers in a device operated from a 240 VAC single phase source?

Select	Answer
A	Only the two wires carrying voltage
B	Only the ground wire
C	Only the neutral wire
D	All wires