Practice Exam

G2B11

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

• A. No more than 1 hour per month
• B. No more than 2 hours per month
• C. No more than 1 hour per week
• D. No more than 2 hours per week

G5B02

2. How does the total current relate to the individual currents in a circuit of parallel resistors?

• A. It decreases as more parallel branches are added to the circuit
• B. It is the sum of the reciprocal of each individual voltage drop
• C. It equals the sum of the currents through each branch
• D. It equals the average of the branch currents

G9C08

3. What is meant by the "main lobe" of a directive antenna?

• A. The magnitude of the maximum vertical angle of radiation
• B. The direction of maximum radiated field strength from the antenna
• C. The point of maximum current in a radiating antenna element
• D. The maximum voltage standing wave point on a radiating element

G2D09

4. Which of the following is required when participating in a contest on HF frequencies?

• A. Submit a log to the contest sponsor
• B. Identify your station according to normal FCC regulations
• C. All these choices are correct
• D. Send a QSL card to the stations worked, or QSL via Logbook of The World

G1E02

5. When may a 10-meter repeater retransmit the 2-meter signal from a station that has a Technician class control operator?

• A. Only during an FCC-declared general state of communications emergency
• B. Only if the station on 10-meters is operating under a Special Temporary Authorization allowing such retransmission
• C. Under no circumstances
• D. Only if the 10-meter repeater control operator holds at least a General class license

G5C08

6. What is the equivalent capacitance of two 5.0-nanofarad capacitors and one 750-picofarad capacitor connected in parallel?

• A. 576.9 nanofarads
• B. 10.750 nanofarads
• C. 1,733 picofarads
• D. 3,583 picofarads

G3B04

7. Which of the following is a way to determine current propagation on a desired band from your station?

• A. Check the A-index
• B. All these choices are correct
• C. Send a series of dots and listen for echoes
• D. Use a network of automated receiving stations on the internet to see where your transmissions are being received

G6A08

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

• A. Comparatively low cost
• B. High capacitance for given volume
• C. High stability
• D. Tight tolerance

G4E09

9. What is the approximate open-circuit voltage from a fully illuminated silicon photovoltaic cell?

• A. 0.02 VDC
• B. 0.2 VDC
• C. 0.5 VDC
• D. 1.38 VDC

G1D12

10. When operating a station in South America by remote control over the internet from the US, what regulations apply?

• A. Those of both the remote station's country and the FCC
• B. Only those of the FCC
• C. Those of the remote station's country and the FCC's third-party regulations
• D. Only those of the remote station's country

G7C11

11. Which of these functions is performed by software in a software-defined radio (SDR)?

• A. All these choices are correct
• B. Modulation
• C. Detection
• D. Filtering

G7B08

12. How is the efficiency of an RF power amplifier determined?

• A. Divide the DC input power by the DC output power
• B. Divide the RF output power by the DC input power
• C. Multiply the RF input power by the reciprocal of the RF output power
• D. Add the RF input power to the DC output power

G2C11

13. What does the Q signal "QRV" mean?

• A. There is interference on the frequency
• B. I am quitting for the day
• C. You are sending too fast
• D. I am ready to receive

G6B05

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

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

G1B06

15. Under what conditions are state and local governments permitted to regulate amateur radio antenna structures?

• A. Amateur Service communications must be reasonably accommodated, and regulations must constitute the minimum practical to accommodate a legitimate purpose of the state or local entity
• B. At any time and to any extent necessary to accomplish a legitimate purpose of the state or local entity, provided that proper filings are made with the FCC
• C. Under no circumstances, FCC rules take priority
• D. Only when such structures exceed 50 feet in height and are clearly visible 1,000 feet from the structure

G9B06

16. Where should the radial wires of a ground-mounted vertical antenna system be placed?

• A. On the surface or buried a few inches below the ground
• B. As high as possible above the ground
• C. At the center of the antenna
• D. Parallel to the antenna element

G2A05

17. Which mode of voice communication is most commonly used on the HF amateur bands?

• A. Double sideband
• B. Single phase modulation
• C. Frequency modulation
• D. Single sideband

G4C05

18. What is a possible cause of high voltages that produce RF burns?

• A. Flat braid rather than round wire has been used for the ground wire
• B. The ground wire has high impedance on that frequency
• C. Insulated wire has been used for the ground wire
• D. The ground rod is resonant

G9D04

19. What is the primary function of antenna traps?

• A. To prevent out-of-band operation
• B. To notch spurious frequencies
• C. To enable multiband operation
• D. To provide balanced feed point impedance

G3C06

20. What is a characteristic of HF scatter?

• A. Signals have a fluttering sound
• B. Phone signals have high intelligibility
• C. There are very large, sudden swings in signal strength
• D. Scatter propagation occurs only at night

G3A13

21. What does the A-index measure?

• A. The relative position of sunspots on the surface of the Sun
• B. The amount of polarization of the Sun's electric field
• C. The long-term stability of Earth's geomagnetic field
• D. The solar radio flux at Boulder, Colorado

G2E13

22. What is another name for a Winlink Remote Message Server?

• A. Printer/Server
• B. Terminal Node Controller
• C. Gateway
• D. RJ-45

G8C06

23. What action results from a failure to exchange information due to excessive transmission attempts when using an ARQ mode?

• A. Encoding reverts to the default character set
• B. Packets will be routed incorrectly
• C. The connection is dropped
• D. The checksum overflows

G4A12

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

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

G8A10

25. What is meant by the term "flat-topping," when referring to an amplitude-modulated phone signal?

• A. Signal distortion caused by excessive drive or speech levels
• B. Signal distortion caused by insufficient collector current
• C. The transmitter's automatic level control (ALC) is properly adjusted
• D. The transmitter's carrier is properly suppressed

G1C05

26. What is the limit for transmitter power on the 28 MHz band for a General Class control operator?

• A. 1000 watts PEP output
• B. 2000 watts PEP output
• C. 100 watts PEP output
• D. 1500 watts PEP output

G8B08

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

• A. To prevent overmodulation
• B. To allow time for the other station to break in during a transmission
• C. To aid in tuning your transmitter
• D. Some modes have high duty cycles that could exceed the transmitter's average power rating

G7A09

28. Which symbol in figure G7-1 represents a field effect transistor?

• A. Symbol 4
• B. Symbol 5
• C. Symbol 2
• D. Symbol 1

G4B01

29. What item of test equipment contains horizontal and vertical channel amplifiers?

• A. An ammeter
• B. A signal generator
• C. An oscilloscope
• D. An ohmmeter

G4D08

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

• A. 7.178 MHz to 7.181 MHz
• B. 7.175 MHz to 7.178 MHz
• C. 7.178 MHz to 7.184 MHz
• D. 7.1765 MHz to 7.1795 MHz

G0B07

31. Which of these choices should be observed when climbing a tower using a safety harness?

• A. Confirm that the harness is rated for the weight of the climber and that it is within its allowable service life
• B. All these choices are correct
• C. Ensure that all heavy tools are securely fastened to the harness
• D. Always hold on to the tower with one hand

G1A04

32. Which of the following amateur bands is restricted to communication only on specific channels, rather than frequency ranges?

• A. 11 meters
• B. 60 meters
• C. 30 meters
• D. 12 meters

G9A01

33. Which of the following factors determine the characteristic impedance of a parallel conductor feed line?

• A. The distance between the centers of the conductors and the length of the line
• B. The frequency of the signal and the length of the line
• C. The distance between the centers of the conductors and the radius of the conductors
• D. The radius of the conductors and the frequency of the signal

G0A03

34. How can you determine that your station complies with FCC RF exposure regulations?

• A. By calculation based on computer modeling
• B. All these choices are correct
• C. By calculation based on FCC OET Bulletin 65
• D. By measurement of field strength using calibrated equipment

G5A04

35. Which of the following is opposition to the flow of alternating current in a capacitor?

• A. Conductance
• B. Admittance
• C. Reactance
• D. Reluctance