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. - G1A04

Which of the following amateur bands is restricted to communication on only specific channels, rather than frequency ranges?

Select	Answer
A	30 meters
B	11 meters
C	60 meters
D	12 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	Transmission of bulletins of general interest to Amateur Radio licensees
D	Identifying net frequencies

3. - G1C08

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

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

4. - G1D02

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

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

5. - G1E06

Which of the following applies in the event of interference between a coordinated repeater and an uncoordinated repeater?

Select	Answer
A	Both repeater licensees share equal responsibility to resolve the interference
B	The frequency coordinator bears primary responsibility to resolve the interference
C	The licensee of the uncoordinated repeater has primary responsibility to resolve the interference
D	The licensee of the coordinated repeater has primary responsibility to resolve the interference

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. - G2B03

If propagation changes during your contact and you notice increasing interference from other activity on the same frequency, what should you do?

Select	Answer
A	Increase power to overcome interference
B	As a common courtesy, move your contact to another frequency
C	Tell the interfering stations to change frequency
D	Report the interference to your local Amateur Auxiliary Coordinator

8. - G2C05

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

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

9. - G2D07

Which of the following is required by the FCC rules when operating in the 60-meter band?

Select	Answer
A	You must keep a record of the manufacturer of your equipment and the antenna used
B	You must keep a record of all third party traffic
C	If you are using other than a dipole antenna, you must keep a record of the gain of your antenna
D	You must keep a record of the date, time, frequency, power level and stations worked

10. - G2E13

Which communication system sometimes uses the Internet to transfer messages?

Select	Answer
A	ARES
B	Winlink
C	RTTY
D	Skywarn

11. - G3A08

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

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

12. - G3B03

Which of the following applies when selecting a frequency for lowest attenuation when transmitting on HF?

Select	Answer
A	Select a frequency just below the critical frequency
B	Select a frequency just above the LUF
C	Select a frequency just below the MUF
D	Select a frequency just above the critical frequency

13. - G3C08

Why are HF scatter signals in the skip zone usually weak?

Select	Answer
A	Propagations is through ducts in F region which absorb most of the energy
B	Only a small part of the signal energy is scattered into the skip zone
C	Signals are scattered from the magnetosphere which is not a good reflector
D	Propagation is through ground waves which absorb most of the signal energy

14. - G4A12

Which of the following is a common use for the dual VFO feature on a transceiver?

Select	Answer
A	To permit full duplex operation, that is transmitting and receiving at the same time
B	To allow transmitting on two frequencies at once
C	To permit monitoring of two different frequencies
D	To facilitate computer interface

15. - G4B01

What item of test equipment contains horizontal and vertical channel amplifiers?

Select	Answer
A	An ohmmeter
B	A signal generator
C	An ammeter
D	An oscilloscope

16. - G4C09

How can a ground loop be avoided?

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

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	14.3455 to 14.3485 MHz
B	14.347 to 14.350 MHz
C	14.347 to 14.647 MHz
D	14.344 to 14.347 MHz

18. - G4E05

Which of the following most limits the effectiveness of an HF mobile transceiver operating in the 75-meter band?

Select	Answer
A	The antenna system
B	The wire gauge of the DC power line to the transceiver
C	FCC rules limiting mobile output power on the 75-meter band
D	"Picket Fencing" signal variation

19. - G5A04

Which of the following causes opposition to the flow of alternating current in a capacitor?

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

21. - G5C17

What is the value in nanofarads (nF) of a 22,000 pF capacitor?

Select	Answer
A	22 nF
B	0.22 nF
C	220 nF
D	2.2 nF

22. - G6A14

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

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

23. - G6B07

Which of the following is an advantage of an LED indicator compared to an incandescent indicator?

Select	Answer
A	Longer life
B	Lower power consumption
C	Faster response time
D	All of these choices are correct

24. - G7A12

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

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

25. - G7B03

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

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

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	Balanced modulator
B	RF oscillator
C	IF filter
D	Product detector

27. - G8A09

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

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

28. - G8B03

What is another term for the mixing of two RF signals?

Select	Answer
A	Synthesizing
B	Cancellation
C	Heterodyning
D	Phase inverting

29. - G8C08

Which of the following statements is true about PSK31?

Select	Answer
A	Upper case letters use longer Varicode signals and thus slow down transmission
B	Varicode Error Correction is used to ensure accurate message reception
C	Higher power is needed as compared to RTTY for similar error rates
D	Upper case letters make the signal stronger

30. - G9A04

What might cause reflected power at the point where a feed line connects to an antenna?

Select	Answer
A	A difference between feed line impedance and antenna feed point impedance
B	Feeding the antenna with unbalanced feed line
C	Operating an antenna at its resonant frequency
D	Using more transmitter power than the antenna can handle

31. - G9B11

What is the approximate length for a 1/2 wave dipole antenna cut for 3.550 MHz?

Select	Answer
A	42 feet
B	84 feet
C	131 feet
D	263 feet

32. - G9C01

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

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

33. - G9D11

Which of the following is a disadvantage of multiband antennas?

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

34. - G0A07

What effect does transmitter duty cycle have when evaluating RF exposure?

Select	Answer
A	A higher transmitter duty cycle permits greater short-term exposure levels
B	Low duty cycle transmitters are exempt from RF exposure evaluation requirements
C	A lower transmitter duty cycle permits greater short-term exposure levels
D	High duty cycle transmitters are exempt from RF exposure requirements

35. - G0B10

Which of the following is a danger from lead-tin solder?

Select	Answer
A	Tin in the solder can "cold flow" causing shorts in the circuit
B	RF energy can convert the lead into a poisonous gas
C	High voltages can cause lead-tin solder to disintegrate suddenly
D	Lead can contaminate food if hands are not washed carefully after handling the solder

Figure G7-1