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. - G1A11

When General Class licensees are not permitted to use the entire voice portion of a particular band, which portion of the voice segment is generally available to them?

Select	Answer
A	The lower frequency end on frequencies below 7.3 MHz and the upper end on frequencies above 14.150 MHz
B	The upper frequency end on frequencies below 7.3 MHz and the lower end on frequencies above 14.150 MHz
C	The lower frequency end
D	The upper frequency end

2. - G1B10

What is the power limit for beacon stations?

Select	Answer
A	20 watts PEP output
B	10 watts PEP output
C	100 watts PEP output
D	200 watts PEP output

3. - G1C10

What is the maximum symbol rate permitted for RTTY or data emission transmissions on the 10-meter band?

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

4. - G1D11

If a person has an expired FCC issued amateur radio license of General Class or higher, what is required before they can receive a new license?

Select	Answer
A	There are no requirements other than being able to show a copy of the expired license
B	They must have a letter from the FCC showing they once held an amateur or commercial license
C	The applicant must pass the current element 2 exam
D	The applicant must be able to produce a copy of a page from a call book published in the USA showing his or her name and address

5. - G1E06

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

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

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

8. - G2C08

What prosign is sent to indicate the end of a formal message when using CW?

Select	Answer
A	AR
B	SK
C	BK
D	KN

9. - G2D02

Which of the following are objectives of the Amateur Auxiliary?

Select	Answer
A	To conduct efficient and orderly amateur licensing examinations
B	To provide emergency and public safety communications
C	To encourage self-regulation and compliance with the rules by radio amateur operators
D	To coordinate repeaters for efficient and orderly spectrum usage

10. - G2E09

How do you join a contact between two stations using the PACTOR protocol?

Select	Answer
A	Joining an existing contact is not possible, PACTOR connections are limited to two stations
B	Transmit a steady carrier until the PACTOR protocol times out and disconnects
C	Send a NAK response continuously so that the sending station has to pause
D	Send broadcast packets containing your call sign while in MONITOR mode

11. - G3A14

How are radio communications usually affected by the charged particles that reach the Earth from solar coronal holes?

Select	Answer
A	VHF/UHF ducting is improved
B	VHF/UHF ducting is disturbed
C	HF communications are improved
D	HF communications are disturbed

12. - G3B01

How might a sky-wave signal sound if it arrives at your receiver by both short path and long path propagation?

Select	Answer
A	Signal strength increased by 3 dB
B	Periodic fading approximately every 10 seconds
C	A well-defined echo might be heard
D	The signal might be cancelled causing severe attenuation

13. - G3C04

What does the term "critical angle" mean as used in radio wave propagation?

Select	Answer
A	The lowest takeoff angle that will return a radio wave to the Earth under specific ionospheric conditions
B	The highest takeoff angle that will return a radio wave to the Earth under specific ionospheric conditions
C	The short path azimuth of a distant station
D	The long path azimuth of a distant station

14. - G4A02

What is one advantage of selecting the opposite or "reverse" sideband when receiving CW signals on a typical HF transceiver?

Select	Answer
A	Accidental out of band operation can be prevented
B	It may be possible to reduce or eliminate interference from other signals
C	More stations can be accommodated within a given signal passband
D	Interference from impulse noise will be eliminated

15. - G4B09

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

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

16. - G4C08

Which of the following would reduce RF interference caused by common-mode current on an audio cable?

Select	Answer
A	Adding series capacitors to the conductors
B	Adding shunt inductors to the conductors
C	Placing a ferrite choke around the cable
D	Adding an additional insulating jacket to the cable

17. - G4D08

What frequency range is occupied by a 3 kHz LSB signal when the displayed carrier frequency is set to 7.178 MHz?

Select	Answer
A	7.175 to 7.178 MHz
B	7.178 to 7.184 MHz
C	7.178 to 7.181 MHz
D	7.1765 to 7.1795 MHz

18. - G4E10

What is the reason that a series diode is connected between a solar panel and a storage battery that is being charged by the panel?

Select	Answer
A	The diode serves to regulate the charging voltage to prevent overcharge
B	The diode limits the current flowing from the panel to a safe value
C	The diode greatly increases the efficiency during times of high illumination
D	The diode prevents self-discharge of the battery though the panel during times of low or no illumination

19. - G5A11

Which of the following describes one method of impedance matching between two AC circuits?

Select	Answer
A	Reduce the power output of the first circuit
B	Insert a circulator between the two circuits
C	Increase the power output of the first circuit
D	Insert an LC network between the two circuits

20. - G5B13

What is the output PEP of an unmodulated carrier if an average reading wattmeter connected to the transmitter output indicates 1060 watts?

Select	Answer
A	1500 watts
B	1060 watts
C	530 watts
D	2120 watts

21. - G5C16

Why is the conductor of the primary winding of many voltage step up transformers larger in diameter than the conductor of the secondary winding?

Select	Answer
A	To insure that the volume of the primary winding is equal to the volume of the secondary winding
B	To improve the coupling between the primary and secondary
C	To prevent parasitic oscillations due to resistive losses in the primary
D	To accommodate the higher current of the primary

22. - G6A02

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

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

23. - G6B12

Which of the following connectors would be a good choice for a serial data port?

Select	Answer
A	PL-259
B	Type N
C	Type SMA
D	DE-9

24. - G7A04

What is the peak-inverse-voltage across the rectifier in a half-wave power supply?

Select	Answer
A	One-half the normal peak output voltage of the power supply
B	Two times the normal peak output voltage of the power supply
C	One-half the normal output voltage of the power supply
D	Equal to the normal output voltage of the power supply

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	The binary number system is most accurate
D	Binary "ones" and "zeros" are easy to represent by an "on" or "off" state

26. - G7C03

What circuit is used to process signals from the RF amplifier and local oscillator then send the result to the IF filter in a superheterodyne receiver?

Select	Answer
A	Mixer
B	Balanced modulator
C	Detector
D	IF amplifier

27. - G8A08

Which of the following is an effect of overmodulation?

Select	Answer
A	Insufficient bandwidth
B	Frequency drift
C	Excessive bandwidth
D	Insufficient audio

28. - G8B06

What is the total bandwidth of an FM phone transmission having 5 kHz deviation and 3 kHz modulating frequency?

Select	Answer
A	8 kHz
B	16 kHz
C	5 kHz
D	3 kHz

29. - G8C11

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

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

30. - G9A03

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

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

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	Slope the radials upward
C	Shorten the radials
D	Lengthen the radials

32. - G9C01

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

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

33. - G9D01

What does the term NVIS mean as related to antennas?

Select	Answer
A	Near Vertical Incidence sky-wave
B	Non-Varying Indicated SWR
C	Non-Varying Impedance Smoothing
D	Nearly Vertical Inductance System

34. - G0A02

Which of the following properties is important in estimating whether an RF signal exceeds the maximum permissible exposure (MPE)?

Select	Answer
A	Its power density
B	Its frequency
C	Its duty cycle
D	All of these choices are correct

35. - G0B01

Which wire or wires in a four-conductor connection should be attached to fuses or circuit breakers in a device operated from a 240 VAC single phase source?

Select	Answer
A	All wires
B	Only the two wires carrying voltage
C	Only the ground wire
D	Only the neutral wire