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. - G1A05

Which of the following frequencies is in the General Class portion of the 40-meter band?

Select	Answer
A	40.200 MHz
B	7.500 MHz
C	40.500 MHz
D	7.250 MHz

2. - G1B02

With which of the following conditions must beacon stations comply?

Select	Answer
A	A beacon station may not use automatic control
B	There must be no more than one beacon signal transmitting in the same band from the same station location
C	The frequency must be coordinated with the National Beacon Organization
D	The frequency must be posted on the Internet or published in a national periodical

3. - G1C11

What is the maximum symbol rate permitted for RTTY or data emission transmissions on the 2-meter band?

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

4. - G1D05

Which of the following must a person have before they can be an administering VE for a Technician Class license examination?

Select	Answer
A	Possession of a properly obtained telegraphy license
B	Notification to the FCC that you want to give an examination
C	An FCC General Class or higher license and VEC accreditation
D	Receipt of a CSCE for General Class

5. - G1E12

Under what circumstances are messages that are sent via digital modes exempt from Part 97 third party rules that apply to other modes of communication?

Select	Answer
A	Under no circumstances
B	When under automatic control
C	When messages are not encrypted
D	When messages are encrypted

6. - G2A09

Why do most amateur stations use lower sideband on the 160-meter, 75-meter and 40-meter bands?

Select	Answer
A	Lower sideband is more efficient than upper sideband at these frequencies
B	Because it is fully compatible with an AM detector
C	Current amateur practice is to use lower sideband on these frequency bands
D	Lower sideband is the only sideband legal on these frequency 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	150 to 500 Hz
B	5 to 50 Hz
C	1 to 3 kHz
D	3 to 6 kHz

8. - G2C02

What should you do if a CW station sends "QRS"?

Select	Answer
A	Send slower
B	Change frequency
C	Repeat everything twice
D	Increase your power

9. - G2D04

Which of the following describes an azimuthal projection map?

Select	Answer
A	A map that shows the number of degrees longitude that an amateur satellite appears to move westward at the equator with each orbit
B	A map that shows the angle at which an amateur satellite crosses the equator
C	A map that shows true bearings and distances from a particular location
D	A map that shows accurate land masses

10. - G2E11

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

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

11. - G3A04

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

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

12. - G3B08

What does MUF stand for?

Select	Answer
A	The Minimum Usable Frequency during a 24 hour period
B	The Maximum Usable Frequency during a 24 hour period
C	The Maximum Usable Frequency for communications between two points
D	The Minimum Usable Frequency for communications between two points

13. - G3C07

What makes HF scatter signals often sound distorted?

Select	Answer
A	The E-region is not present
B	The ionospheric layer involved is unstable
C	Energy is scattered into the skip zone through several different radio wave paths
D	Ground waves are absorbing much of the signal

14. - G4A01

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

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

15. - G4B09

Which of the following can be determined with a field strength meter?

Select	Answer
A	The presence and amount of phase distortion of a transmitter
B	The presence and amount of amplitude distortion of a transmitter
C	The radiation resistance of an antenna
D	The radiation pattern of an antenna

16. - G4C05

What might be the problem if you receive an RF burn when touching your equipment while transmitting on an HF band, assuming the equipment is connected to a ground rod?

Select	Answer
A	Insulated wire has been used for the ground wire
B	Flat braid rather than round wire has been used for the ground wire
C	The ground wire has high impedance on that frequency
D	The ground rod is resonant

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

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 battery using resistor wire
C	To the alternator or generator using resistor wire
D	To the alternator or generator using heavy gauge wire

19. - G5A05

How does an inductor react to AC?

Select	Answer
A	As the frequency of the applied AC increases, the reactance increases
B	As the frequency of the applied AC increases, the reactance decreases
C	As the amplitude of the applied AC increases, the reactance increases
D	As the amplitude of the applied AC increases, the reactance decreases

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	2500 watts
B	8.75 watts
C	625 watts
D	5000 watts

21. - G5C01

What causes a voltage to appear across the secondary winding of a transformer when an AC voltage source is connected across its primary winding?

Select	Answer
A	Displacement current coupling
B	Mutual capacitance
C	Capacitive coupling
D	Mutual inductance

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	Tight tolerance
D	High capacitance for given volume

23. - G6B11

What is a microprocessor?

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

24. - G7A12

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

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

25. - G7B12

Which of these classes of amplifiers has the highest efficiency?

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

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	RF amplifier
B	IF amplifier
C	Filter
D	Carrier oscillator

27. - G8A03

What is the name of the process that changes the instantaneous frequency of an RF wave to convey information?

Select	Answer
A	Frequency transformation
B	Frequency modulation
C	Frequency conversion
D	Frequency convolution

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	101.75 Hz
B	416.7 Hz
C	5 kHz
D	60 kHz

29. - G8C02

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

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

30. - G9A03

What is the characteristic impedance of flat ribbon TV type twinlead?

Select	Answer
A	75 ohms
B	50 ohms
C	100 ohms
D	300 ohms

31. - G9B12

What is the approximate length for a 1/4 wave vertical antenna cut for 28.5 MHz?

Select	Answer
A	16 feet
B	8 feet
C	11 feet
D	21 feet

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

33. - G9D07

Which of the following describes a log periodic antenna?

Select	Answer
A	Impedance varies periodically as a function of frequency
B	SWR varies periodically as a function of boom length
C	Gain varies logarithmically as a function of frequency
D	Length and spacing of the elements increase logarithmically from one end of the boom to the other

34. - G0A06

What precaution should be taken when installing a ground-mounted antenna?

Select	Answer
A	It should not be installed in a wet area
B	It should be installed such that it is protected against unauthorized access
C	It should not be installed higher than you can reach
D	It should limited to 10 feet in height

35. - G0B13

What must you do when powering your house from an emergency generator?

Select	Answer
A	Insure that all lightning grounds are disconnected
B	Disconnect the incoming utility power feed
C	Insure that the generator is not grounded
D	All of these choices are correct

Figure G7-1