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. - G1A08

Which of the following frequencies is within the General Class portion of the 80-meter band?

Select	Answer
A	3650 kHz
B	2560 kHz
C	1855 kHz
D	3560 kHz

2. - G1B07

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

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

3. - G1C06

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

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

4. - G1D01

Who may receive credit for the elements represented by an expired amateur radio license?

Select	Answer
A	Any person who can demonstrate that they once held an FCC issued General, Advanced, or Amateur Extra class license that was not revoked by the FCC
B	Any person who previously held an amateur license issued by another country, but only if that country has a current reciprocal licensing agreement with the FCC
C	Only persons who once held an FCC issued Novice, Technician, or Technician Plus license
D	Anyone who held an FCC issued amateur radio license that has been expired for not less than 5 years and not more than 15 years

5. - G1E01

Which of the following would disqualify a third party from participating in stating a message over an amateur station?

Select	Answer
A	The third party is a licensed amateur
B	The third party is speaking in a language other than English
C	The third party is not a U.S. citizen
D	The third party's amateur license has been revoked and not reinstated

6. - G2A06

Which of the following is an advantage when using single sideband as compared to other analog voice modes on the HF amateur bands?

Select	Answer
A	Less subject to interference from atmospheric static crashes
B	Very high fidelity voice modulation
C	Less bandwidth used and greater power efficiency
D	Ease of tuning on receive and immunity to impulse noise

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

8. - G2C06

What does the term "zero beat" mean in CW operation?

Select	Answer
A	Matching the speed of the transmitting station
B	Sending without error
C	Operating split to avoid interference on frequency
D	Matching your transmit frequency to the frequency of a received signal

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

10. - G2E06

What is the most common frequency shift for RTTY emissions in the amateur HF bands?

Select	Answer
A	850 Hz
B	425 Hz
C	170 Hz
D	85 Hz

11. - G3A04

Which of the following are least reliable for long distance communications during periods of low solar activity?

Select	Answer
A	60 meters and 40 meters
B	30 meters and 20 meters
C	80 meters and 160 meters
D	15 meters, 12 meters and 10 meters

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	Short skip sky-wave propagation on the 10-meter band
C	Severe attenuation of signals on the 10-meter band
D	Long skip sky-wave propagation on the 10-meter band

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 is on the opposite side of the Earth
C	Where the Sun is overhead
D	Where the Sun has just set

14. - G4A01

What is the purpose of the "notch filter" found on many HF transceivers?

Select	Answer
A	To restrict the transmitter voice bandwidth
B	To enhance the reception of a specific frequency on a crowded band
C	To eliminate receiver interference from impulse noise sources
D	To reduce interference from carriers in the receiver passband

15. - G4B13

What is a use for an antenna analyzer other than measuring the SWR of an antenna system?

Select	Answer
A	Determining the gain of a directional antenna
B	Measuring the turns ratio of a power transformer
C	Determining the impedance of an unknown or unmarked coaxial cable
D	Measuring the front to back ratio of an antenna

16. - G4C09

How can a ground loop be avoided?

Select	Answer
A	Connect the AC neutral conductor to the ground wire
B	Connect all ground conductors in series
C	Avoid using lock washers and star washers when making ground connections
D	Connect all ground conductors to a single point

17. - G4D09

What frequency range is occupied by a 3 kHz USB signal with the displayed carrier frequency set to 14.347 MHz?

Select	Answer
A	14.347 to 14.647 MHz
B	14.347 to 14.350 MHz
C	14.344 to 14.347 MHz
D	14.3455 to 14.3485 MHz

18. - G4E01

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

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

19. - G5A07

What happens when the impedance of an electrical load is equal to the output impedance of a power source, assuming both impedances are resistive?

Select	Answer
A	The electrical load is shorted
B	The source can deliver maximum power to the load
C	The source delivers minimum power to the load
D	No current can flow through the circuit

20. - G5B11

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

Select	Answer
A	0.707
B	1.00
C	2.00
D	1.414

21. - G5C13

Which of the following components should be added to a capacitor to increase the capacitance?

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

22. - G6A13

Why is the polarity of applied voltages important for polarized capacitors?

Select	Answer
A	Reverse voltages can destroy the dielectric layer of an electrolytic capacitor
B	All of these choices are correct
C	The capacitor could overheat and explode
D	Incorrect polarity can cause the capacitor to short-circuit

23. - G6B04

What is meant by the term ROM?

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

24. - G7A02

Which of the following components are used in a power supply filter network?

Select	Answer
A	Transformers and transducers
B	Quartz crystals
C	Capacitors and inductors
D	Diodes

25. - G7B02

Which of the following is an advantage of using the binary system when processing digital signals?

Select	Answer
A	Binary numbers are more compatible with analog circuitry
B	All of these choices are correct
C	Binary "ones" and "zeros" are easy to represent by an "on" or "off" state
D	The binary number system is most accurate

26. - G7C10

How is Digital Signal Processor filtering accomplished?

Select	Answer
A	By differential spurious phasing
B	By using direct signal phasing
C	By converting the signal from digital to analog and taking the difference of mixing products
D	By converting the signal from analog to digital and using digital processing

27. - G8A04

What emission is produced by a reactance modulator connected to a transmitter RF amplifier stage?

Select	Answer
A	Pulse modulation
B	Amplitude modulation
C	Phase modulation
D	Multiplex modulation

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	5 kHz
C	416.7 Hz
D	101.75 Hz

29. - G8C07

How does the receiving station respond to an ARQ data mode packet containing errors?

Select	Answer
A	It requests the packet be retransmitted
B	It requests a change in transmitting protocol
C	It terminates the contact
D	It sends the packet back to the transmitting station

30. - G9A15

What is the effect of transmission line loss on SWR measured at the input to the line?

Select	Answer
A	The higher the transmission line loss, the more accurate the SWR measurement will be
B	The higher the transmission line loss, the more the SWR will read artificially high
C	The higher the transmission line loss, the more the SWR will read artificially low
D	Transmission line loss does not affect the SWR measurement

31. - G9B07

How does the feed point impedance of a 1/2 wave dipole antenna change as the antenna is lowered below 1/4 wave above ground?

Select	Answer
A	It peaks at about 1/8 wavelength above ground
B	It steadily decreases
C	It steadily increases
D	It is unaffected by the height above ground

32. - G9C08

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

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

33. - G9D05

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

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

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	An SWR meter with a peak-reading function
C	A calibrated field strength meter with a calibrated antenna
D	A receiver with an S meter

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