Practice Exam

G1B09

1. On what HF frequencies are automatically controlled beacons permitted?

• A. 21.08 MHz to 21.09 MHz
• B. On any frequency if transmissions are in Morse code
• C. On any frequency if power is less than 1 watt
• D. 28.20 MHz to 28.30 MHz

G3A04

2. Which of the following are the least reliable bands for long-distance communications during periods of low solar activity?

• A. 30 meters and 20 meters
• B. 80 meters and 160 meters
• C. 60 meters and 40 meters
• D. 15 meters, 12 meters, and 10 meters

G2B06

3. How can you avoid harmful interference on an apparently clear frequency before calling CQ on CW or phone?

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

G4E02

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

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

G3B09

5. What is the approximate maximum distance along the Earth's surface normally covered in one hop using the F2 region?

• A. 1,200 miles
• B. 180 miles
• C. 12,000 miles
• D. 2,500 miles

G4D04

6. What does an S meter measure?

• A. Impedance
• B. Transmitter power output
• C. Carrier suppression
• D. Received signal strength

G5C02

7. What is the output voltage if an input signal is applied to the secondary winding of a 4:1 voltage step-down transformer instead of the primary winding?

• A. The input voltage is multiplied by 4
• B. Additional resistance must be added in parallel with the secondary to prevent overload
• C. The input voltage is divided by 4
• D. Additional resistance must be added in series with the primary to prevent overload

G7A04

8. What is characteristic of a half-wave rectifier in a power supply?

• A. More current can be drawn from the half-wave rectifier
• B. The output voltage is two times the peak input voltage
• C. The ripple frequency is twice that of a full-wave rectifier
• D. Only one diode is required

G7C14

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

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

G1A03

10. On which of the following bands is image transmission prohibited?

• A. 30 meters
• B. 12 meters
• C. 160 meters
• D. 20 meters

G1E01

11. Which of the following would disqualify a third party from participating in sending a message via an amateur station?

• A. The third party is speaking in a language other than English
• B. All these choices are correct
• C. The third party's amateur license has been revoked and not reinstated
• D. The third party is not a US citizen

G0A04

12. What does "time averaging" mean when evaluating RF radiation exposure?

• A. The average time it takes RF radiation to have any long-term effect on the body
• B. The average amount of power developed by the transmitter over a specific 24-hour period
• C. The total RF exposure averaged over a certain period
• D. The total time of the exposure

G4B01

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

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

G4C09

14. How can the effects of ground loops be minimized?

• A. Avoid using lock washers and star washers when making ground connections
• B. Bond equipment enclosures together
• C. Connect the AC neutral conductor to the ground wire
• D. Connect all ground conductors in series

G8B11

15. What combination of a mixer's Local Oscillator (LO) and RF input frequencies is found in the output?

• A. The sum and difference
• B. The arithmetic product
• C. The average
• D. The ratio

G2E09

16. How do you join a contact between two stations using the PACTOR protocol?

• A. Joining an existing contact is not possible, PACTOR connections are limited to two stations
• B. Transmit a steady carrier until the PACTOR protocol times out and disconnects
• C. Send broadcast packets containing your call sign while in MONITOR mode
• D. Send a NAK code

G2D07

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

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

G2A09

18. Why do most amateur stations use lower sideband on the 160-, 75-, and 40-meter bands?

• A. Lower sideband is the only sideband legal on these frequency bands
• B. Lower sideband is more efficient than upper sideband at these frequencies
• C. Because it is fully compatible with an AM detector
• D. It is commonly accepted amateur practice

G6A07

19. What are the operating points for a bipolar transistor used as a switch?

• A. The active region (between cutoff and saturation)
• B. Enhancement and depletion modes
• C. Saturation and cutoff
• D. Peak and valley current points

G5B02

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

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

G8A04

21. What emission is produced by a reactance modulator connected to a transmitter RF amplifier stage?

• A. Phase modulation
• B. Amplitude modulation
• C. Multiplex modulation
• D. Pulse modulation

G7B07

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

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

G1C06

23. What is the limit for transmitter power on the 1.8 MHz band?

• A. 1500 watts PEP output
• B. 1200 watts PEP output
• C. 1000 watts PEP output
• D. 200 watts PEP output

G1D09

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

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

G4A06

25. What is the purpose of an antenna tuner?

• A. Reduce the power dissipation in the feedline to the antenna
• B. Reduce the SWR in the feed line to the antenna
• C. Increase power transfer from the transmitter to the feed line
• D. All these choices are correct

G8C16

26. Which of the following provide digital voice modes?

• A. WSPR, MFSK16, and EasyPAL
• B. Winlink, PACTOR II, and PACTOR III
• C. DMR, D-STAR, and SystemFusion
• D. FT8, FT4, and FST4

G3C07

27. What makes HF scatter signals often sound distorted?

• A. The E region is not present
• B. The ionospheric region involved is unstable
• C. Energy is scattered into the skip zone through several different paths
• D. Ground waves are absorbing much of the signal

G2C10

28. What does the Q signal "QRN" mean?

• A. I am troubled by static
• B. Send more slowly
• C. Stop sending
• D. Zero beat my signal

G5A04

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

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

G9C02

30. 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

G9D10

31. In which direction or directions does an electrically small loop (less than 1/10 wavelength in circumference) have nulls in its radiation pattern?

• A. Electrically small loops are omnidirectional
• B. Broadside to the loop
• C. In the plane of the loop
• D. Broadside and in the plane of the loop

G0B05

32. Which of the following conditions will cause a ground fault circuit interrupter (GFCI) to disconnect AC power?

• A. Current flowing from one or more of the hot wires to the neutral wire
• B. All these choices are correct
• C. Overvoltage on the hot wires
• D. Current flowing from one or more of the hot wires directly to ground

G6B01

33. What determines the performance of a ferrite core at different frequencies?

• A. Its conductivity
• B. The composition, or "mix," of materials used
• C. The ratio of outer diameter to inner diameter
• D. Its thickness

G9B07

34. How does the feed point impedance of a horizontal 1/2 wave dipole antenna change as the antenna height is reduced to 1/10 wavelength above ground?

• A. It peaks at about 1/8 wavelength above ground
• B. It steadily decreases
• C. It is unaffected by the height above ground
• D. It steadily increases

G9A11

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

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