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	3560 kHz
B	3650 kHz
C	1855 kHz
D	2560 kHz

2. - G1B11

How does the FCC require an amateur station to be operated in all respects not specifically covered by the Part 97 rules?

Select	Answer
A	In conformance with the rules of the IARU
B	All of these choices are correct
C	In conformance with Amateur Radio custom
D	In conformance with good engineering and good amateur practice

3. - G1C08

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

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

4. - G1D09

How long is a Certificate of Successful Completion of Examination (CSCE) valid for exam element credit?

Select	Answer
A	365 days
B	For as long as your current license is valid
C	180 days
D	30 days

5. - G1E03

What is required to conduct communications with a digital station operating under automatic control outside the automatic control band segments?

Select	Answer
A	The station initiating the contact must be under local or remote control
B	The interrogating transmission must be made by another automatically controlled station
C	The control operator of the interrogating station must hold an Extra Class license
D	No third party traffic maybe be transmitted

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

7. - G2B11

What frequency should be used to send a distress call?

Select	Answer
A	Whichever frequency has the best chance of communicating the distress message
B	Only frequencies that are within your operating privileges
C	Only frequencies used by police, fire or emergency medical services
D	Only frequencies authorized for RACES or ARES stations

8. - G2C02

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

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

9. - G2D09

What information is traditionally contained in a station log?

Select	Answer
A	Call sign of station contacted and the signal report given
B	Band and/or frequency of the contact
C	Date and time of contact
D	All of these choices are correct

10. - G2E13

Which communication system sometimes uses the Internet to transfer messages?

Select	Answer
A	Skywarn
B	Winlink
C	ARES
D	RTTY

11. - G3A06

What is a geomagnetic storm?

Select	Answer
A	A sudden drop in the solar flux index
B	Ripples in the ionosphere
C	A temporary disturbance in the Earth's magnetosphere
D	A thunderstorm which affects radio propagation

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

14. - G4A11

Which of the following is a use for the IF shift control on a receiver?

Select	Answer
A	To tune in stations that are slightly off frequency without changing your transmit frequency
B	To permit listening on a different frequency from that on which you are transmitting
C	To change frequency rapidly
D	To avoid interference from stations very close to the receive frequency

15. - G4B07

What signals are used to conduct a two-tone test?

Select	Answer
A	Two non-harmonically related audio signals
B	Two audio signals of the same frequency shifted 90 degrees
C	Two audio frequency range square wave signals of equal amplitude
D	Two swept frequency tones

16. - G4C10

What could be a symptom of a ground loop somewhere in your station?

Select	Answer
A	You receive reports of harmonic interference from your station
B	The SWR reading for one or more antennas is suddenly very high
C	You receive reports of "hum" on your station's transmitted signal
D	An item of station equipment starts to draw excessive amounts of current

17. - G4D06

Where is an S meter found?

Select	Answer
A	In a transmitter
B	In a conductance bridge
C	In a receiver
D	In an SWR bridge

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

19. - G5A04

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

Select	Answer
A	Admittance
B	Conductance
C	Reactance
D	Reluctance

20. - G5B07

What value of an AC signal produces the same power dissipation in a resistor as a DC voltage of the same value?

Select	Answer
A	The peak value
B	The reciprocal of the RMS value
C	The peak-to-peak value
D	The RMS value

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	Capacitive coupling
C	Mutual capacitance
D	Mutual inductance

22. - G6A02

What is an advantage of the low internal resistance of nickel-cadmium batteries?

Select	Answer
A	High voltage
B	Long life
C	High discharge current
D	Rapid recharge

23. - G6B15

What is the main reason to use keyed connectors instead of non-keyed types?

Select	Answer
A	Reduced chance of incorrect mating
B	Prevention of use by unauthorized persons
C	All of these choices are correct
D	Higher current carrying capacity

24. - G7A12

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

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

25. - G7B12

Which of these classes of amplifiers has the highest efficiency?

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

26. - G7C05

Which of the following is an advantage of a transceiver controlled by a direct digital synthesizer (DDS)?

Select	Answer
A	Variable frequency with the stability of a crystal oscillator
B	Relatively low power consumption
C	Relatively high power output
D	Wide tuning range and no need for band switching

27. - G8A09

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

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

28. - G8B08

Why is it important to know the duty cycle of the mode you are using when transmitting?

Select	Answer
A	To aid in tuning your transmitter
B	Some modes have high duty cycles which could exceed the transmitter's average power rating.
C	All of these choices are correct
D	To allow time for the other station to break in during a transmission

29. - G8C10

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

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

30. - G9A06

In what units is RF feed line loss usually expressed?

Select	Answer
A	Decibels per 100 feet
B	Ohms per 1000 feet
C	Decibels per 1000 feet
D	Ohms per 100 feet

31. - G9B02

Which of the following is a common way to adjust the feed point impedance of a quarter wave ground plane vertical antenna to be approximately 50 ohms?

Select	Answer
A	Slope the radials downward
B	Shorten the radials
C	Slope the radials upward
D	Lengthen the radials

32. - G9C19

How does antenna gain stated in dBi compare to gain stated in dBd for the same antenna?

Select	Answer
A	dBi gain figures are the reciprocal of dBd gain figures + 2.15 dB
B	dBi gain figures are 2.15 dB higher than dBd gain figures
C	dBi gain figures are the same as the square root of dBd gain figures multiplied by 2.15
D	dBi gain figures are 2.15 dB lower then dBd gain figures

33. - G9D07

Which of the following describes a log periodic antenna?

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

34. - G0A12

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

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

35. - G0B08

What should be done by any person preparing to climb a tower that supports electrically powered devices?

Select	Answer
A	Notify the electric company that a person will be working on the tower
B	Make sure all circuits that supply power to the tower are locked out and tagged
C	All of these choices are correct
D	Unground the base of the tower

Figure G7-1