US Amateur Radio - General (Element 3, 2023-2027) Practice Test

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US Amateur Radio - General (Element 3, 2023-2027) Practice Test

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1. - G0A11

What precaution should be taken if you install an indoor transmitting antenna?

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

2. - G0B11

Which of the following is required for lightning protection ground rods?

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

3. - G1A05

On which of the following frequencies are General class licensees prohibited from operating as control operator?

Select	Answer
A	All these choices are correct
B	7.125 MHz to 7.175 MHz
C	28.000 MHz to 28.025 MHz
D	21.275 MHz to 21.300 MHz

4. - G1B03

Which of the following is a purpose of a beacon station as identified in the FCC rules?

Select	Answer
A	All these choices are correct
B	Automatic identification of repeaters
C	Transmission of bulletins of general interest to amateur radio licensees
D	Observation of propagation and reception

5. - G1C07

What must be done before using a new digital protocol on the air?

Select	Answer
A	Obtain an experimental license from the FCC
B	Submit a rule-making proposal to the FCC describing the codes and methods of the technique
C	Publicly document the technical characteristics of the protocol
D	Type-certify equipment to FCC standards

6. - G1D09

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

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

7. - G1E10

Why should an amateur operator normally avoid transmitting on 14.100, 18.110, 21.150, 24.930 and 28.200 MHz?

Select	Answer
A	These frequencies are set aside for bulletins from the FCC
B	A system of automatic digital stations operates on those frequencies
C	A system of propagation beacon stations operates on those frequencies
D	These frequencies are set aside for emergency operations

8. - G2A08

What is the recommended way to break into a phone contact?

Select	Answer
A	Say your call sign once
B	Say “QRZ” several times, followed by your call sign
C	Say “Breaker Breaker”
D	Say “CQ” followed by the call sign of either station

9. - G2B11

How often may RACES training drills and tests be routinely conducted without special authorization?

Select	Answer
A	No more than 2 hours per week
B	No more than 1 hour per week
C	No more than 1 hour per month
D	No more than 2 hours per month

10. - G2C09

What does the Q signal “QSL” mean?

Select	Answer
A	We have worked before
B	Send slower
C	I have received and understood
D	We have already confirmed the contact

11. - G2D07

Which of the following are examples of the NATO Phonetic Alphabet?

Select	Answer
A	Alpha, Bravo, Charlie, Delta
B	America, Boston, Canada, Denmark
C	Adam, Boy, Charles, David
D	Able, Baker, Charlie, Dog

12. - G2E12

Which of the following describes Winlink?

Select	Answer
A	An amateur radio wireless network to send and receive email on the internet
B	A form of Packet Radio
C	All of the above
D	A wireless network capable of both VHF and HF band operation

13. - G3A12

What does the K-index measure?

Select	Answer
A	The relative position of sunspots on the surface of the Sun
B	The solar radio flux at Boulder, Colorado
C	The short-term stability of the Sun’s magnetic field
D	The short-term stability of Earth’s geomagnetic field

14. - G3B03

Which frequency will have the least attenuation for long-distance skip propagation?

Select	Answer
A	Just below the MUF
B	Just above the critical frequency
C	Just above the LUF
D	Just below the critical frequency

15. - G3C11

Which ionospheric region is the most absorbent of signals below 10 MHz during daylight hours?

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

16. - G4A12

Which of the following is a common use of the dual-VFO feature on a transceiver?

Select	Answer
A	To permit full duplex operation -- that is, transmitting and receiving at the same time
B	To transmit on one frequency and listen on another
C	To improve frequency accuracy by allowing variable frequency output (VFO) operation
D	To allow transmitting on two frequencies at once

17. - G4B12

What effect can strong signals from nearby transmitters have on an antenna analyzer?

Select	Answer
A	All these choices are correct
B	Desensitization which can cause intermodulation products which interfere with impedance readings
C	Received power that interferes with SWR readings
D	Generation of harmonics which interfere with frequency readings

18. - G4C06

What is a possible effect of a resonant ground connection?

Select	Answer
A	A ground loop
B	Overheating of ground straps
C	Corrosion of the ground rod
D	High RF voltages on the enclosures of station equipment

19. - G4D01

What is the purpose of a speech processor in a transceiver?

Select	Answer
A	Decrease high-frequency voice output to prevent out-of-band operation
B	Increase transmitter bass response for more natural-sounding SSB signals
C	Prevent distortion of voice signals
D	Increase the apparent loudness of transmitted voice signals

20. - G4E02

What is the purpose of a corona ball on an HF mobile antenna?

Select	Answer
A	To reduce RF voltage discharge from the tip of the antenna while transmitting
B	To increase the “Q” of the antenna
C	To narrow the operating bandwidth of the antenna
D	To reduce the chance of damage if the antenna should strike an object

21. - G5A11

What letter is used to represent reactance?

Select	Answer
A	Y
B	B
C	X
D	Z

22. - G5B08

What is the peak-to-peak voltage of a sine wave with an RMS voltage of 120 volts?

Select	Answer
A	240.0 volts
B	84.8 volts
C	339.4 volts
D	169.7 volts

23. - G5C04

What is the approximate total resistance of a 100- and a 200-ohm resistor in parallel?

Select	Answer
A	67 ohms
B	75 ohms
C	300 ohms
D	150 ohms

24. - G6A08

Which of the following is characteristic of low voltage ceramic capacitors?

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

25. - G6B03

Which of the following is an advantage of CMOS integrated circuits compared to TTL integrated circuits?

Select	Answer
A	Better suited for RF amplification
B	High power handling capability
C	Better suited for power supply regulation
D	Low power consumption

26. - G7A12

Which symbol in Figure G7-1 represents a solid core transformer?

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

27. - G7B01

What is the purpose of neutralizing an amplifier?

Select	Answer
A	To eliminate self-oscillations
B	To limit the modulation index
C	To keep the carrier on frequency
D	To cut off the final amplifier during standby periods

28. - G7C14

The bandwidth of a band-pass filter is measured between what two frequencies?

Select	Answer
A	Cutoff and rolloff
B	Pole and zero
C	Upper and lower half-power
D	Image and harmonic

29. - G8A05

What type of modulation varies the instantaneous power level of the RF signal?

Select	Answer
A	Amplitude modulation
B	Frequency modulation
C	Phase modulation
D	Power modulation

30. - G8B03

What is another term for the mixing of two RF signals?

Select	Answer
A	Synthesizing
B	Frequency inversion
C	Heterodyning
D	Phase inversion

31. - G8C09

Which is true of mesh network microwave nodes?

Select	Answer
A	Having more nodes increases signal strengths
B	If one node fails, a packet may still reach its target station via an alternate node
C	More nodes reduce overall microwave out of band interference
D	Links between two nodes in a network may have different frequencies and bandwidths

32. - G9A11

What is the effect of transmission line loss on SWR measured at the input to the line?

Select	Answer
A	Higher loss increases the accuracy of SWR measured at the input to the line
B	Higher loss increases SWR measured at the input to the line
C	Transmission line loss does not affect the SWR measurement
D	Higher loss reduces SWR measured at the input to the line

33. - G9B04

What is the radiation pattern of a dipole antenna in free space in a plane containing the conductor?

Select	Answer
A	It is a circle (equal radiation in all directions)
B	It is a figure-eight at right angles to the antenna
C	It has a pair of lobes on one side of the antenna and a single lobe on the other side
D	It is a figure-eight off both ends of the antenna

34. - G9C07

What does “front-to-back ratio” mean in reference to a Yagi antenna?

Select	Answer
A	The ratio of forward gain to dipole gain
B	The power radiated in the major lobe compared to that in the opposite direction
C	The number of directors versus the number of reflectors
D	The relative position of the driven element with respect to the reflectors and directors

35. - G9D09

What is the primary use of a Beverage antenna?

Select	Answer
A	Portable direction finding at lower HF frequencies
B	Portable direction finding at higher HF frequencies
C	Directional transmitting for low HF bands
D	Directional receiving for MF and low HF bands

Figure G7-1