Practice Exam

G9A10

1. What standing wave ratio results from connecting a 50-ohm feed line to a 10-ohm resistive load?

• A. 2:1
• B. 1:5
• C. 5:1
• D. 1:2

G1E08

2. What is the maximum PEP output allowed for spread spectrum transmissions?

• A. 100 watts
• B. 10 watts
• C. 1500 watts
• D. 100 milliwatts

G3A12

3. What does the K-index measure?

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

G2E02

4. What is VARA?

• A. A digital protocol used with Winlink
• B. A low signal-to-noise digital mode used for EME (moonbounce)
• C. A DX spotting system using a network of software defined radios
• D. A radio direction finding system used on VHF and UHF

G7C03

5. What is one reason to use an impedance matching transformer at a transmitter output?

• A. To minimize transmitter power output
• B. To minimize radiation resistance
• C. To reduce power supply ripple
• D. To present the desired impedance to the transmitter and feed line

G3C10

6. What is near vertical incidence skywave (NVIS) propagation?

• A. Propagation near the MUF
• B. Long path HF propagation at sunrise and sunset
• C. Double hop propagation near the LUF
• D. Short distance MF or HF propagation at high elevation angles

G5A08

7. What is impedance?

• A. The product of current and voltage
• B. The product of current and reactance
• C. The ratio of voltage to current
• D. The ratio of current to voltage

G9D12

8. What is the common name of a dipole with a single central support?

• A. Inverted V
• B. Lazy H
• C. Inverted L
• D. Sloper

G9B06

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

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

G1A10

10. What portion of the 10-meter band is available for repeater use?

• A. The portion between 28.1 MHz and 28.2 MHz
• B. The portion between 28.3 MHz and 28.5 MHz
• C. The entire band
• D. The portion above 29.5 MHz

G3B01

11. What is a characteristic of skywave signals arriving at your location by both short-path and long-path propagation?

• A. The signal might be cancelled causing severe attenuation
• B. Periodic fading approximately every 10 seconds
• C. A slightly delayed echo might be heard
• D. Signal strength increased by 3 dB

G7A09

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

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

G4B05

13. Why do voltmeters have high input impedance?

• A. It improves the resolution of the readings
• B. It decreases the loading on circuits being measured
• C. It allows for higher voltages to be safely measured
• D. It improves the frequency response

G1B01

14. What is the maximum height above ground for an antenna structure not near a public use airport without requiring notification to the FAA and registration with the FCC?

• A. 200 feet
• B. 250 feet
• C. 50 feet
• D. 100 feet

G0B10

15. Which of the following is a danger from lead-tin solder?

• A. Lead can contaminate food if hands are not washed carefully after handling the solder
• B. RF energy can convert the lead into a poisonous gas
• C. High voltages can cause lead-tin solder to disintegrate suddenly
• D. Tin in the solder can "cold flow," causing shorts in the circuit

G0A08

16. Which of the following steps must an amateur operator take to ensure compliance with RF safety regulations?

• A. Perform a routine RF exposure evaluation and prevent access to any identified high exposure areas
• B. All these choices are correct
• C. Post a copy of FCC Part 97.13 in the station
• D. Notify neighbors within a 100-foot radius of the antenna of the existence of the station and power levels

G8A01

17. How is direct binary FSK modulation generated?

• A. By changing an oscillator's frequency directly with a digital control signal
• B. By keying an FM transmitter with a sub-audible tone
• C. By using a transceiver's computer data interface protocol to change frequencies
• D. By reconfiguring the CW keying input to act as a tone generator

G7B07

18. Which of the following are basic components of a sine wave oscillator?

• A. A frequency multiplier and a mixer
• B. A filter and an amplifier operating in a feedback loop
• C. A circulator and a filter operating in a feed-forward loop
• D. An amplifier and a divider

G8C11

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

• A. Mark and space
• B. Dot and dash
• C. On and off
• D. High and low

G4A12

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

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

G2C06

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

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

G9C02

22. What is the approximate length of the driven element of a Yagi antenna?

• A. 1/2 wavelength
• B. 1/4 wavelength
• C. 1 wavelength
• D. 3/4 wavelength

G2D07

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

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

G4C07

24. Why should soldered joints not be used in lightning protection ground connections?

• A. Solder flux will prevent a low conductivity connection
• B. A soldered joint will likely be destroyed by the heat of a lightning strike
• C. Solder has too high a dielectric constant to provide adequate lightning protection
• D. All these choices are correct

G2A08

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

• A. Say "CQ" followed by the call sign of either station
• B. Say "Breaker Breaker"
• C. Say your call sign once
• D. Say "QRZ" several times, followed by your call sign

G6B03

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

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

G1D02

27. What license examinations may you administer as an accredited Volunteer Examiner holding a General class operator license?

• A. General and Technician
• B. Technician only
• C. None, only Amateur Extra class licensees may be accredited
• D. Amateur Extra, General, and Technician

G8B06

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

• A. 3 kHz
• B. 16 kHz
• C. 5 kHz
• D. 8 kHz

G2B02

29. What is the first thing you should do if you are communicating with another amateur station and hear a station in distress break in?

• A. Acknowledge the station in distress and determine what assistance may be needed
• B. Immediately cease all transmissions
• C. Inform your local emergency coordinator
• D. Immediately decrease power to avoid interfering with the station in distress

G1C04

30. Which of the following is required by the FCC rules when operating in the 60-meter band?

• A. You must keep a record of the manufacturer of your equipment and the antenna used
• B. If you are using an antenna other than a dipole, you must keep a record of the gain of your antenna
• C. You must keep a record of all third-party traffic
• D. You must keep a record of the date, time, frequency, power level, and stations worked

G4E01

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

• A. To lower the radiation angle
• B. To increase the power handling capacity of a whip antenna
• C. To reduce radiation resistance
• D. To electrically lengthen a physically short antenna

G6A08

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

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

G4D10

33. How close to the lower edge of a band's phone segment should your displayed carrier frequency be when using 3 kHz wide LSB?

• A. At least 3 kHz above the edge of the segment
• B. At least 1 kHz above the edge of the segment
• C. At least 1 kHz below the edge of the segment
• D. At least 3 kHz below the edge of the segment

G5B12

34. What is the RMS voltage across a 50-ohm dummy load dissipating 1200 watts?

• A. 692 volts
• B. 346 volts
• C. 173 volts
• D. 245 volts

G5C11

35. What is the inductance of a circuit with a 20-millihenry inductor connected in series with a 50-millihenry inductor?

• A. 7 millihenries
• B. 1,000 millihenries
• C. 14.3 millihenries
• D. 70 millihenries