US Amateur Radio - General (Element 3, 2015-2019) Practice Test

Anonymous User

US Amateur Radio - General (Element 3, 2015-2019) Practice Test

Logging in (or registering) will help the system to select questions that you need to focus on.

1. - G1A12

Which of the following applies when the FCC rules designate the Amateur Service as a secondary user on a band?

Select	Answer
A	Amateur stations are allowed to use the band only during emergencies
B	Amateur stations may only operate during specific hours of the day, while primary users are permitted 24 hour use of the band
C	Amateur stations must record the call sign of the primary service station before operating on a frequency assigned to that station
D	Amateur stations are allowed to use the band only if they do not cause harmful interference to primary users

2. - G1B08

When choosing a transmitting frequency, what should you do to comply with good amateur practice?

Select	Answer
A	All of these choices are correct
B	Insure that the frequency and mode selected are within your license class privileges
C	Monitor the frequency before transmitting
D	Follow generally accepted band plans agreed to by the Amateur Radio community

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	56 kilobaud
C	300 baud
D	19.6 kilobaud

4. - G1D10

What is the minimum age that one must be to qualify as an accredited Volunteer Examiner?

Select	Answer
A	21 years
B	12 years
C	There is no age limit
D	18 years

5. - G1E04

Which of the following conditions require a licensed Amateur Radio operator to take specific steps to avoid harmful interference to other users or facilities?

Select	Answer
A	All of these choices are correct
B	When using a band where the Amateur Service is secondary
C	When a station is transmitting spread spectrum emissions
D	When operating within one mile of an FCC Monitoring Station

6. - G2A07

Which of the following statements is true of the single sideband voice mode?

Select	Answer
A	Only one sideband is transmitted; the other sideband and carrier are suppressed
B	SSB is the only voice mode that is authorized on the 160-meter, 75-meter and 40-meter amateur bands
C	Only one sideband and the carrier are transmitted; the other sideband is suppressed
D	SSB is the only voice mode that is authorized on the 20-meter, 15-meter, and 10-meter amateur bands

7. - G2B04

When selecting a CW transmitting frequency, what minimum separation should be used to minimize interference to stations on adjacent frequencies?

Select	Answer
A	5 to 50 Hz
B	1 to 3 kHz
C	150 to 500 Hz
D	3 to 6 kHz

8. - G2C04

What does the Q signal "QRL?" mean?

Select	Answer
A	"Will you keep the frequency clear?"
B	"Are you listening only for a specific station?"
C	"Are you operating full break-in" or "Can you operate full break-in?"
D	"Are you busy?", or "Is this frequency in use?"

9. - G2D03

What skills learned during hidden transmitter hunts are of help to the Amateur Auxiliary?

Select	Answer
A	Direction finding used to locate stations violating FCC Rules
B	Identification of different call signs
C	Identification of out of band operation
D	Hunters have an opportunity to transmit on non-amateur frequencies

10. - G2E13

Which communication system sometimes uses the Internet to transfer messages?

Select	Answer
A	Skywarn
B	RTTY
C	ARES
D	Winlink

11. - G3A15

How long does it take charged particles from coronal mass ejections to affect radio propagation on the Earth?

Select	Answer
A	20 to 40 hours
B	4 to 8 minutes
C	14 days
D	28 days

12. - G3B10

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

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

13. - G3C06

What is a characteristic of HF scatter signals?

Select	Answer
A	All of these choices are correct
B	They have high intelligibility
C	They have a wavering sound
D	They have very large swings in signal strength

14. - G4A10

What is the purpose of an electronic keyer?

Select	Answer
A	Computer interface for PSK and RTTY operation
B	VOX operation
C	Automatic transmit/receive switching
D	Automatic generation of strings of dots and dashes for CW operation

15. - G4B15

What type of transmitter performance does a two-tone test analyze?

Select	Answer
A	Percentage of frequency modulation
B	Percentage of carrier phase shift
C	Linearity
D	Percentage of suppression of carrier and undesired sideband for SSB

16. - G4C03

What sound is heard from an audio device or telephone if there is interference from a nearby single sideband phone transmitter?

Select	Answer
A	Clearly audible speech
B	Distorted speech
C	On-and-off humming or clicking
D	A steady hum whenever the transmitter is on the air

17. - G4D02

Which of the following describes how a speech processor affects a transmitted single sideband phone signal?

Select	Answer
A	It increases peak power
B	It reduces intermodulation distortion
C	It increases average power
D	It reduces harmonic distortion

18. - G4E03

Which of the following direct, fused power connections would be the best for a 100 watt HF mobile installation?

Select	Answer
A	To the battery using heavy gauge wire
B	To the alternator or generator using resistor wire
C	To the alternator or generator using heavy gauge wire
D	To the battery using resistor wire

19. - G5A10

What unit is used to measure impedance?

Select	Answer
A	Ampere
B	Watt
C	Ohm
D	Volt

20. - G5B09

What is the RMS voltage of a sine wave with a value of 17 volts peak?

Select	Answer
A	34 volts
B	8.5 volts
C	12 volts
D	24 volts

21. - G5C17

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

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

22. - G6A04

When is it acceptable to recharge a carbon-zinc primary cell?

Select	Answer
A	When the cell is kept warm during the recharging period
B	As long as the voltage has not been allowed to drop below 1.0 volt
C	When a constant current charger is used
D	Never

23. - G6B01

Which of the following is an analog integrated circuit?

Select	Answer
A	NAND Gate
B	Linear voltage regulator
C	Microprocessor
D	Frequency Counter

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 the same frequency as the AC input
B	A steady DC voltage
C	A sine wave at half the frequency of the AC input
D	A series of DC pulses at twice the frequency of the AC input

25. - G7B02

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

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

26. - G7C06

What should be the impedance of a low-pass filter as compared to the impedance of the transmission line into which it is inserted?

Select	Answer
A	About the same
B	Substantially higher
C	Twice the transmission line impedance
D	Substantially lower

27. - G8A04

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

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

28. - G8B10

What is the relationship between transmitted symbol rate and bandwidth?

Select	Answer
A	Symbol rate and bandwidth are not related
B	Lower symbol rates require wider bandwidth
C	Bandwidth is always half the symbol rate
D	Higher symbol rates require wider bandwidth

29. - G8C11

How are the two separate frequencies of a Frequency Shift Keyed (FSK) signal identified?

Select	Answer
A	High and Low
B	On and Off
C	Mark and Space
D	Dot and Dash

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

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	On the surface of the Earth or buried a few inches below the ground
C	At the center of the antenna
D	Parallel to the antenna element

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	3 dB higher
B	2.54 dB higher
C	3 dB lower
D	About the same

33. - G9D09

Which of the following is an application for a Beverage antenna?

Select	Answer
A	Directional transmitting for low HF bands
B	Directional receiving for low HF bands
C	Portable direction finding at lower HF frequencies
D	Portable direction finding at higher HF frequencies

34. - G0A12

What precaution should you take whenever you make adjustments or repairs to an antenna?

Select	Answer
A	All of these choices are correct
B	Ensure that you and the antenna structure are grounded
C	Turn off the transmitter and disconnect the feed line
D	Wear a radiation badge

35. - G0B06

Why must the metal enclosure of every item of station equipment be grounded?

Select	Answer
A	It prevents signal overload
B	It prevents a blown fuse in the event of an internal short circuit
C	It ensures that hazardous voltages cannot appear on the chassis
D	It ensures that the neutral wire is grounded