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. - G1A02

On which of the following bands is phone operation prohibited?

Select	Answer
A	17 meters
B	160 meters
C	12 meters
D	30 meters

2. - G1B10

What is the power limit for beacon stations?

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

3. - G1C07

What is the maximum symbol rate permitted for RTTY or data emission transmission on the 20-meter band?

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

4. - G1D01

Who may receive credit for the elements represented by an expired amateur radio license?

Select	Answer
A	Any person who previously held an amateur license issued by another country, but only if that country has a current reciprocal licensing agreement with the FCC
B	Any person who can demonstrate that they once held an FCC issued General, Advanced, or Amateur Extra class license that was not revoked by the FCC
C	Only persons who once held an FCC issued Novice, Technician, or Technician Plus license
D	Anyone who held an FCC issued amateur radio license that has been expired for not less than 5 years and not more than 15 years

5. - G1E09

What language must be used when identifying your station if you are using a language other than English in making a contact using phone emission?

Select	Answer
A	Any language recognized by the United Nations
B	English only
C	English, Spanish, French, or German
D	The language being used for the contact

6. - G2A07

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

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

7. - G2B06

What is a practical way to avoid harmful interference on an apparently clear frequency before calling CQ on CW or phone?

Select	Answer
A	Send "QSY" on CW or if using phone, announce "the frequency is in use", then give your call and listen for a response
B	Send the letter "V" in Morse code several times and listen for a response or say "test" several times and listen for a response
C	Send "QRL?" on CW, followed by your call sign; or, if using phone, ask if the frequency is in use, followed by your call sign
D	Listen for 2 minutes before calling CQ

8. - G2C09

What does the Q signal "QSL" mean?

Select	Answer
A	I acknowledge receipt
B	We have already confirmed by card
C	We have worked before
D	Send slower

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

10. - G2E10

Which of the following is a way to establish contact with a digital messaging system gateway station?

Select	Answer
A	Send an email to the system control operator
B	Transmit a connect message on the station's published frequency
C	Respond when the station broadcasts its SSID
D	Send QRL in Morse code

11. - G3A03

Approximately how long does it take the increased ultraviolet and X-ray radiation from solar flares to affect radio propagation on the Earth?

Select	Answer
A	20 to 40 hours
B	1 to 2 hours
C	8 minutes
D	28 days

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. - G3C02

Where on the Earth do ionospheric layers reach their maximum height?

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

14. - G4A13

What is one reason to use the attenuator function that is present on many HF transceivers?

Select	Answer
A	To reduce signal overload due to strong incoming signals
B	To slow down received CW signals for better copy
C	To reduce the transmitter power when driving a linear amplifier
D	To reduce power consumption when operating from batteries

15. - G4B14

What is an instance in which the use of an instrument with analog readout may be preferred over an instrument with a digital readout?

Select	Answer
A	When testing logic circuits
B	When measuring the frequency of an oscillator
C	When high precision is desired
D	When adjusting tuned circuits

16. - G4C01

Which of the following might be useful in reducing RF interference to audio frequency devices?

Select	Answer
A	Bypass inductor
B	Reverse-biased diode
C	Bypass capacitor
D	Forward-biased diode

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. - G4E07

Which of the following may cause interference to be heard in the receiver of an HF radio installed in a recent model vehicle?

Select	Answer
A	The fuel delivery system
B	The vehicle control computer
C	The battery charging system
D	All of these choices are correct

19. - G5A01

What is impedance?

Select	Answer
A	The force of repulsion between two similar electric fields
B	The electric charge stored by a capacitor
C	The inverse of resistance
D	The opposition to the flow of current in an AC circuit

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

21. - G5C11

What is the inductance of a 20 millihenry inductor connected in series with a 50 millihenry inductor?

Select	Answer
A	14.3 millihenrys
B	0.07 millihenrys
C	1000 millihenrys
D	70 millihenrys

22. - G6A18

What is an advantage of using a ferrite core toroidal inductor?

Select	Answer
A	All of these choices are correct
B	Most of the magnetic field is contained in the core
C	The magnetic properties of the core may be optimized for a specific range of frequencies
D	Large values of inductance may be obtained

23. - G6B02

What is meant by the term MMIC?

Select	Answer
A	Military Manufactured Integrated Circuit
B	Mode Modulated Integrated Circuit
C	Monolithic Microwave Integrated Circuit
D	Multi Megabyte Integrated Circuit

24. - G7A08

Which of the following is an advantage of a switchmode power supply as compared to a linear power supply?

Select	Answer
A	Faster switching time makes higher output voltage possible
B	All of these choices are correct
C	High frequency operation allows the use of smaller components
D	Fewer circuit components are required

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	All of these choices are correct
C	The binary number system is most accurate
D	Binary numbers are more compatible with analog circuitry

26. - G7C02

Which circuit is used to combine signals from the carrier oscillator and speech amplifier then send the result to the filter in some single sideband phone transmitters?

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

27. - G8A08

Which of the following is an effect of overmodulation?

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

28. - G8B08

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

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

29. - G8C01

Which of the following digital modes is designed to operate at extremely low signal strength on the HF bands?

Select	Answer
A	RTTY
B	JT9 and JT65
C	FSK441 and Hellschreiber
D	Clover

30. - G9A13

What standing wave ratio will result when connecting a 50 ohm feed line to an antenna that has a purely resistive 300 ohm feed point impedance?

Select	Answer
A	6:1
B	1.5:1
C	3:1
D	You cannot determine SWR from impedance values

31. - G9B11

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

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

32. - G9C04

Which statement about a three-element, single-band Yagi antenna is true?

Select	Answer
A	All of the elements must be the same length
B	The reflector is normally the shortest element
C	The reflector is normally the longest element
D	The director is normally the longest element

33. - G9D10

Which of the following describes a Beverage antenna?

Select	Answer
A	A broad-band mobile antenna
B	A very long and low directional receiving antenna
C	A helical antenna for space reception
D	A vertical antenna

34. - G0A11

What precaution should you take if you install an indoor transmitting antenna?

Select	Answer
A	Locate the antenna close to your operating position to minimize feed line radiation
B	Position the antenna along the edge of a wall to reduce parasitic radiation
C	Make sure the antenna is properly shielded
D	Make sure that MPE limits are not exceeded in occupied areas

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 neutral wire
C	Only the ground wire
D	Only the two wires carrying voltage