Practice Exam

G4A05

1. Why is automatic level control (ALC) used with an RF power amplifier?

• A. To reduce harmonic radiation
• B. To increase overall efficiency
• C. To prevent excessive drive
• D. To balance the transmitter audio frequency response

G8A14

2. What is link margin?

• A. The opposite of fade margin
• B. Receiver sensitivity plus 3 dB
• C. The difference between received power level and minimum required signal level at the input to the receiver
• D. Transmit power minus receiver sensitivity

G2D08

3. Why do many amateurs keep a station log?

• A. The FCC requires a log of all international contacts
• B. To help with a reply if the FCC requests information about your station
• C. The log provides evidence of operation needed to renew a license without retest
• D. The FCC requires a log of all international third-party traffic

G1B10

4. What is the power limit for beacon stations?

• A. 20 watts PEP output
• B. 10 watts PEP output
• C. 200 watts PEP output
• D. 100 watts PEP output

G2B02

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

G9B10

6. What is the approximate length for a 1/2 wave dipole antenna cut for 14.250 MHz?

• A. 24 feet
• B. 33 feet
• C. 8 feet
• D. 16 feet

G1C02

7. What is the maximum transmitter power an amateur station may use on the 12-meter band?

• A. An effective radiated power equivalent to 100 watts from a half-wave dipole
• B. 50 watts PEP output
• C. 1500 watts PEP output
• D. 200 watts PEP output

G9A11

8. 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 increases the accuracy of SWR measured at the input to the line
• D. Higher loss reduces SWR measured at the input to the line

G7A08

9. Which of the following is characteristic of a switchmode power supply as compared to a linear power supply?

• A. Inherently more stable
• B. High-frequency operation allows the use of smaller components
• C. Faster switching time makes higher output voltage possible
• D. Fewer circuit components are required

G7B03

10. Which of the following describes the function of a two-input AND gate?

• A. Output is high when either or both inputs are low
• B. Output is high only when both inputs are high
• C. Output is low only when both inputs are high
• D. Output is low when either or both inputs are high

G2E04

11. Which of the following is good practice when choosing a transmitting frequency to answer a station calling CQ using FT8?

• A. Find a clear frequency during the alternate time slot to the calling station
• B. Call on any frequency in the waterfall except the station's frequency
• C. Always call on the station's frequency
• D. Find a clear frequency during the same time slot as the calling station

G3B05

12. How does the ionosphere affect radio waves with frequencies below the MUF and above the LUF?

• A. They are refracted and trapped in the ionosphere to circle Earth
• B. They pass through the ionosphere
• C. They are refracted back to Earth
• D. They are amplified by interaction with the ionosphere

G5B05

13. How many watts are consumed when a current of 7.0 milliamperes flows through a 1,250-ohm resistance?

• A. Approximately 11 watts
• B. Approximately 61 watts
• C. Approximately 11 milliwatts
• D. Approximately 61 milliwatts

G2C04

14. What does the Q signal "QRL?" mean?

• A. "Are you operating full break-in?" or "Can you operate full break-in?"
• B. "Are you listening only for a specific station?"
• C. "Will you keep the frequency clear?"
• D. "Are you busy?" or "Is this frequency in use?"

G8C04

15. Which of the following describes Baudot code?

• A. A code using error detection and correction
• B. A 5-bit code with additional start and stop bits
• C. A 7-bit code with start, stop, and parity bits
• D. A code using SELCAL and LISTEN

G2A05

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

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

G4E02

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

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

G6A06

18. Why should wire-wound resistors not be used in RF circuits?

• A. The resistor could overheat
• B. The resistor's tolerance value would not be adequate
• C. The resistor's inductance could make circuit performance unpredictable
• D. The resistor's internal capacitance would detune the circuit

G7C04

19. How is a product detector used?

• A. Used in an FM receiver to filter out unwanted sidebands
• B. Used in test gear to detect spurious mixing products
• C. Used in a single sideband receiver to extract the modulated signal
• D. Used in transmitter to perform frequency multiplication

G1D02

20. 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

G0B02

21. According to the National Electrical Code, what is the minimum wire size that may be used safely for wiring with a 20-ampere circuit breaker?

• A. AWG number 8
• B. AWG number 12
• C. AWG number 20
• D. AWG number 16

G4C11

22. What technique helps to minimize RF "hot spots" in an amateur station?

• A. Building all equipment in a metal enclosure
• B. Using surge suppressor power outlets
• C. Placing low-pass filters on all feed lines
• D. Bonding all equipment enclosures together

G9D03

23. In which direction is the maximum radiation from a VHF/UHF "halo" antenna?

• A. Opposite the feed point
• B. On the same side as the feed point
• C. Broadside to the plane of the halo
• D. Omnidirectional in the plane of the halo

G8B07

24. What is the frequency deviation for a 12.21 MHz reactance modulated oscillator in a 5 kHz deviation, 146.52 MHz FM phone transmitter?

• A. 60 kHz
• B. 416.7 Hz
• C. 5 kHz
• D. 101.75 Hz

G4B11

25. Which of the following must be connected to an antenna analyzer when it is being used for SWR measurements?

• A. Transmitter
• B. Antenna and feed line
• C. Receiver
• D. All these choices are correct

G3A04

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

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

G9C03

27. How do the lengths of a three-element Yagi reflector and director compare to that of the driven element?

• A. Relative length depends on the frequency of operation
• B. They are all the same length
• C. The reflector is shorter, and the director is longer
• D. The reflector is longer, and the director is shorter

G3C11

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

• A. The F2 region
• B. The E region
• C. The D region
• D. The F1 region

G1E07

29. In what part of the 2.4 GHz band may an amateur station communicate with non-licensed Wi-Fi stations?

• A. Channels 1 through 4
• B. Channels 42 through 45
• C. Anywhere in the band
• D. No part

G4D03

30. What is the effect of an incorrectly adjusted speech processor?

• A. Distorted speech
• B. Excessive background noise
• C. Excess intermodulation products
• D. All these choices are correct

G6B07

31. Which of the following describes a type N connector?

• A. A nickel plated version of the PL-259
• B. A low noise figure VHF connector
• C. A small bayonet connector used for data circuits
• D. A moisture-resistant RF connector useful to 10 GHz

G5A11

32. What letter is used to represent reactance?

• A. Z
• B. Y
• C. X
• D. B

G5C04

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

• A. 67 ohms
• B. 75 ohms
• C. 150 ohms
• D. 300 ohms

G1A01

34. On which HF and/or MF amateur bands are there portions where General class licensees cannot transmit?

• A. 60 meters, 30 meters, 17 meters, and 12 meters
• B. 80 meters, 20 meters, 15 meters, and 10 meters
• C. 80 meters, 40 meters, 20 meters, and 15 meters
• D. 160 meters, 60 meters, 15 meters, and 12 meters

G0A08

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

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