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. - 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 if they do not cause harmful interference to primary users
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 during emergencies

2. - G1B07

What are the restrictions on the use of abbreviations or procedural signals in the Amateur Service?

Select	Answer
A	They may be used if they do not obscure the meaning of a message
B	They are not permitted
C	Only "10 codes" are permitted
D	Only "Q" signals are permitted

3. - G1C11

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

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

4. - G1D03

On which of the following band segments may you operate if you are a Technician Class operator and have a CSCE for General Class privileges?

Select	Answer
A	On any General or Technician Class band segment except 30-meters and 60-meters
B	On any General or Technician Class band segment
C	Only on the Technician band segments until your license arrives in the mail
D	Only the Technician band segments until your upgrade is posted in the FCC database

5. - G1E01

Which of the following would disqualify a third party from participating in stating a message over an amateur station?

Select	Answer
A	The third party is a licensed amateur
B	The third party's amateur license has been revoked and not reinstated
C	The third party is speaking in a language other than English
D	The third party is not a U.S. citizen

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

7. - G2B10

When may the FCC restrict normal frequency operations of amateur stations participating in RACES?

Select	Answer
A	Only when all amateur stations are instructed to stop transmitting
B	When the President's War Emergency Powers have been invoked
C	When they declare a temporary state of communication emergency
D	When they seize your equipment for use in disaster communications

8. - G2C06

What does the term "zero beat" mean in CW operation?

Select	Answer
A	Matching your transmit frequency to the frequency of a received signal
B	Sending without error
C	Matching the speed of the transmitting station
D	Operating split to avoid interference on frequency

9. - G2D06

How is a directional antenna pointed when making a "long-path" contact with another station?

Select	Answer
A	180 degrees from its short-path heading
B	Along the gray line
C	Toward the north
D	Toward the rising Sun

10. - G2E04

What segment of the 20-meter band is most often used for digital transmissions?

Select	Answer
A	14.150 - 14.225 MHz
B	14.275 - 14.350 MHz
C	14.000 - 14.050 MHz
D	14.070 - 14.100 MHz

11. - G3A07

At what point in the solar cycle does the 20-meter band usually support worldwide propagation during daylight hours?

Select	Answer
A	At any point in the solar cycle
B	Only at the maximum point of the solar cycle
C	At the summer solstice
D	Only at the minimum point of the solar cycle

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	Severe attenuation of signals on the 10-meter band
C	Short skip sky-wave propagation on the 10-meter band
D	Long skip sky-wave propagation on the 10-meter band

13. - G3C12

Which ionospheric layer is the most absorbent of long skip signals during daylight hours on frequencies below 10 MHz?

Select	Answer
A	The D layer
B	The F1 layer
C	The E layer
D	The F2 layer

14. - G4A04

What reading on the plate current meter of a vacuum tube RF power amplifier indicates correct adjustment of the plate tuning control?

Select	Answer
A	A pronounced peak
B	A slow, rhythmic oscillation
C	No change will be observed
D	A pronounced dip

15. - G4B02

Which of the following is an advantage of an oscilloscope versus a digital voltmeter?

Select	Answer
A	Complex waveforms can be measured
B	Complex impedances can be easily measured
C	Input impedance is much lower
D	An oscilloscope uses less power

16. - G4C12

Which of the following is an advantage of a receiver DSP IF filter as compared to an analog filter?

Select	Answer
A	Fewer digital components are required
B	Mixing products are greatly reduced
C	A wide range of filter bandwidths and shapes can be created
D	The DSP filter is much more effective at VHF frequencies

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	7.178 to 7.181 MHz
B	7.175 to 7.178 MHz
C	7.1765 to 7.1795 MHz
D	7.178 to 7.184 MHz

18. - G4E01

What is the purpose of a capacitance hat on a mobile antenna?

Select	Answer
A	To electrically lengthen a physically short antenna
B	To allow automatic band changing
C	To increase the power handling capacity of a whip antenna
D	To allow remote tuning

19. - G5A10

What unit is used to measure impedance?

Select	Answer
A	Ohm
B	Volt
C	Ampere
D	Watt

20. - G5B03

How many watts of electrical power are used if 400 VDC is supplied to an 800 ohm load?

Select	Answer
A	0.5 watts
B	400 watts
C	200 watts
D	3200 watts

21. - G5C02

What happens if you reverse the primary and secondary windings of a 4:1 voltage step down transformer?

Select	Answer
A	The secondary voltage becomes 4 times the primary voltage
B	Additional resistance must be added in parallel with the secondary to prevent overload
C	The transformer no longer functions as it is a unidirectional device
D	Additional resistance must be added in series with the primary to prevent overload

22. - G6A14

Which of the following is an advantage of ceramic capacitors as compared to other types of capacitors?

Select	Answer
A	Tight tolerance
B	High stability
C	High capacitance for given volume
D	Comparatively low cost

23. - G6B02

What is meant by the term MMIC?

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

24. - G7A11

Which symbol in figure G7-1 represents an NPN junction transistor?

Select	Answer
A	Symbol 2
B	Symbol 1
C	Symbol 7
D	Symbol 11

25. - G7B02

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

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

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

27. - G8A09

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

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

28. - G8B08

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

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

29. - G8C11

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

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

30. - G9A06

In what units is RF feed line loss usually expressed?

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

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	21 feet
C	8 feet
D	11 feet

32. - G9C18

What happens when the feed point of a quad antenna of any shape is moved from the midpoint of the top or bottom to the midpoint of either side?

Select	Answer
A	The polarization of the radiated signal changes from vertical to horizontal
B	There is no change in polarization
C	The polarization of the radiated signal changes from horizontal to vertical
D	The radiated signal becomes circularly polarized

33. - G9D07

Which of the following describes a log periodic antenna?

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

34. - G0A09

What type of instrument can be used to accurately measure an RF field?

Select	Answer
A	An oscilloscope with a high-stability crystal marker generator
B	A calibrated field strength meter with a calibrated antenna
C	A receiver with an S meter
D	An SWR meter with a peak-reading function

35. - G0B11

Which of the following is good practice for lightning protection grounds?

Select	Answer
A	Bends in ground wires must be made as close as possible to a right angle
B	They must be bonded to all buried water and gas lines
C	They must be bonded together with all other grounds
D	Lightning grounds must be connected to all ungrounded wiring

Figure G7-1