Practice Exam

G7A06

1. What portion of the AC cycle is converted to DC by a full-wave rectifier?

• A. 270 degrees
• B. 180 degrees
• C. 360 degrees
• D. 90 degrees

G2D02

2. Which of the following are objectives of the Volunteer Monitor Program?

• A. To provide emergency and public safety communications
• B. To coordinate repeaters for efficient and orderly spectrum usage
• C. To conduct efficient and orderly amateur licensing examinations
• D. To encourage amateur radio operators to self-regulate and comply with the rules

G4E03

3. Which of the following direct, fused power connections would be the best for a 100-watt HF mobile installation?

• A. To the alternator or generator using heavy-gauge wire
• B. To the battery using insulated heavy duty balanced transmission line
• C. To the alternator or generator using insulated heavy duty balanced transmission line
• D. To the battery using heavy-gauge wire

G1A08

4. Which HF bands have segments exclusively allocated to Amateur Extra licensees?

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

G8C04

5. Which of the following describes Baudot code?

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

G2B04

6. When selecting a CW transmitting frequency, what minimum separation from other stations should be used to minimize interference to stations on adjacent frequencies?

• A. 3 kHz to 6 kHz
• B. 1 kHz to 3 kHz
• C. 150 Hz to 500 Hz
• D. 5 Hz to 50 Hz

G6B02

7. What is meant by the term MMIC?

• A. Monolithic Microwave Integrated Circuit
• B. Metal Monolayer Integrated Circuit
• C. Mode Modulated Integrated Circuit
• D. Multi-Mode Integrated Circuit

G4C12

8. Why must all metal enclosures of station equipment be grounded?

• A. It prevents a blown fuse in the event of an internal short circuit
• B. It ensures that hazardous voltages cannot appear on the chassis
• C. It ensures that the neutral wire is grounded
• D. It prevents signal overload

G4B06

9. What is an advantage of a digital multimeter as compared to an analog multimeter?

• A. Higher precision
• B. Better for measuring computer circuits
• C. Less prone to overload
• D. Faster response

G9B09

10. Which of the following is an advantage of using a horizontally polarized as compared to a vertically polarized HF antenna?

• A. Shorter radials
• B. Lower radiation resistance
• C. Lower feed point impedance
• D. Lower ground losses

G5C05

11. Why is the primary winding wire of a voltage step-up transformer usually a larger size than that of the secondary winding?

• A. To accommodate the higher current of the primary
• B. To ensure that the volume of the primary winding is equal to the volume of the secondary winding
• C. To improve the coupling between the primary and secondary
• D. To prevent parasitic oscillations due to resistive losses in the primary

G8A11

12. What is the modulation envelope of an AM signal?

• A. The carrier frequency that contains the signal
• B. Spurious signals that envelop nearby frequencies
• C. The bandwidth of the modulated signal
• D. The waveform created by connecting the peak values of the modulated signal

G3B06

13. What usually happens to radio waves with frequencies below the LUF?

• A. They pass through the ionosphere
• B. They are refracted and trapped in the ionosphere to circle Earth
• C. They are refracted back to Earth
• D. They are attenuated before reaching the destination

G6A02

14. What is an advantage of batteries with low internal resistance?

• A. High voltage
• B. Long life
• C. High discharge current
• D. Rapid recharge

G0B01

15. Which wire or wires in a four-conductor 240 VAC circuit should be attached to fuses or circuit breakers?

• A. Only the hot wires
• B. Only the ground wire
• C. Only the neutral wire
• D. All wires

G2E13

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

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

G2A11

17. Generally, who should respond to a station in the contiguous 48 states calling "CQ DX"?

• A. Only stations in Germany
• B. Only contest stations
• C. Any stations outside the lower 48 states
• D. Any caller is welcome to respond

G2C03

18. What does it mean when a CW operator sends "KN" at the end of a transmission?

• A. Closing station now
• B. No US stations should call
• C. Operating full break-in
• D. Listening only for a specific station or stations

G1E12

19. When may third-party messages be transmitted via remote control?

• A. Only when the message is intended for licensed radio amateurs
• B. Only when the message is intended for third parties in areas where licensing is controlled by the FCC
• C. Under any circumstances in which third party messages are permitted by FCC rules
• D. Under no circumstances except for emergencies

G4A11

20. Why should the ALC system be inactive when transmitting AFSK data signals?

• A. The ALC action distorts the signal
• B. All these choices are correct
• C. ALC will invert the modulation of the AFSK mode
• D. When using digital modes, too much ALC activity can cause the transmitter to overheat

G9C08

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

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

G7C11

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

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

G4D05

23. How does a signal that reads 20 dB over S9 compare to one that reads S9 on a receiver, assuming a properly calibrated S meter?

• A. It is 10 times less powerful
• B. It is 100 times more powerful
• C. It is 20 times more powerful
• D. It is 20 times less powerful

G0A07

24. What is the effect of modulation duty cycle on RF exposure?

• A. Low duty cycle transmitters are exempt from RF exposure evaluation requirements
• B. A higher duty cycle permits greater power levels to be transmitted
• C. A lower duty cycle permits greater power levels to be transmitted
• D. High duty cycle transmitters are exempt from RF exposure requirements

G3C04

25. What does the term "critical angle" mean, as applied to radio wave propagation?

• A. The short path azimuth of a distant station
• B. The highest takeoff angle that will return a radio wave to Earth under specific ionospheric conditions
• C. The long path azimuth of a distant station
• D. The lowest takeoff angle that will return a radio wave to Earth under specific ionospheric conditions

G5B04

26. How many watts of electrical power are consumed by a 12 VDC light bulb that draws 0.2 amperes?

• A. 60 watts
• B. 24 watts
• C. 6 watts
• D. 2.4 watts

G1B11

27. Who or what determines "good engineering and good amateur practice," as applied to the operation of an amateur station in all respects not covered by the Part 97 rules?

• A. The IEEE
• B. The control operator
• C. The FCC
• D. The ITU

G5A03

28. Which of the following is opposition to the flow of alternating current in an inductor?

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

G1D03

29. On which of the following band segments may you operate if you are a Technician class operator and have an unexpired Certificate of Successful Completion of Examination (CSCE) for General class privileges?

• A. Only the Technician band segments until your upgrade is posted in the FCC database
• B. On any General or Technician class band segment
• C. On any General or Technician class band segment except 30 meters and 60 meters
• D. Only on the Technician band segments until you have a receipt for the FCC application fee payment

G3A13

30. What does the A-index measure?

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

G8B07

31. 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. 5 kHz
• B. 60 kHz
• C. 416.7 Hz
• D. 101.75 Hz

G7B03

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

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

G9D05

33. What is an advantage of vertically stacking horizontally polarized Yagi antennas?

• A. It narrows the main lobe in elevation
• B. It narrows the main lobe in azimuth
• C. It allows quick selection of vertical or horizontal polarization
• D. It allows simultaneous vertical and horizontal polarization

G1C04

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

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

G9A03

35. What is the nominal characteristic impedance of "window line" transmission line?

• A. 450 ohms
• B. 75 ohms
• C. 100 ohms
• D. 50 ohms