Practice Exam

G7C14

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

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

G6A08

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

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

G1E03

3. What is required to conduct communications with a digital station operating under automatic control outside the automatic control band segments?

• A. The station initiating the contact must be under local or remote control
• B. The interrogating transmission must be made by another automatically controlled station
• C. No third-party traffic may be transmitted
• D. The control operator of the interrogating station must hold an Amateur Extra Class license

G4D01

4. What is the purpose of a speech processor as used in a modern transceiver?

• A. Decrease high-frequency voice output to prevent out-of-band operation
• B. Increase transmitter bass response for more natural-sounding SSB signals
• C. Increase the intelligibility of transmitted phone signals during poor conditions
• D. Prevent distortion of voice signals

G5B11

5. What is the ratio of peak envelope power to average power for an unmodulated carrier?

• A. 0.707
• B. 1.414
• C. 1.00
• D. 2.00

G2C01

6. Which of the following describes full break-in telegraphy (QSK)?

• A. Automatic keyers, instead of hand keys, are used to send Morse code
• B. Transmitting stations can receive between code characters and elements
• C. Breaking stations send the Morse code prosign "BK"
• D. An operator must activate a manual send/receive switch before and after every transmission

G6B05

7. What is meant when memory is characterized as non-volatile?

• A. The stored information is maintained even if power is removed
• B. It is resistant to radiation damage
• C. It is resistant to high temperatures
• D. The stored information cannot be changed once written

G3C11

8. Which ionospheric layer is the most absorbent of long skip signals during daylight hours on frequencies below 10 MHz?

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

G2E07

9. What segment of the 80-meter band is most commonly used for digital transmissions?

• A. 3700 - 3750 kHz
• B. 3500 - 3525 kHz
• C. 3570 - 3600 kHz
• D. 3775 - 3825 kHz

G4E01

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

• A. To increase the power handling capacity of a whip antenna
• B. To allow remote tuning
• C. To allow automatic band changing
• D. To electrically lengthen a physically short antenna

G7A06

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

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

G9D06

12. Which of the following is an advantage of a log periodic antenna?

• A. Higher gain per element than a Yagi antenna
• B. Wide bandwidth
• C. Polarization diversity
• D. Harmonic suppression

G8B01

13. Which mixer input is varied or tuned to convert signals of different frequencies to an intermediate frequency (IF)?

• A. Local oscillator
• B. RF input
• C. Image frequency
• D. Beat frequency oscillator

G4B14

14. What is an instance in which the use of an instrument with analog readout may be preferred over an instrument with digital readout?

• A. When adjusting tuned circuits
• B. When high precision is desired
• C. When testing logic circuits
• D. When measuring the frequency of an oscillator

G5C01

15. What causes a voltage to appear across the secondary winding of a transformer when an AC voltage source is connected across its primary winding?

• A. Capacitive coupling
• B. Displacement current coupling
• C. Mutual inductance
• D. Mutual capacitance

G4C09

16. How can a ground loop be avoided?

• A. Connect all ground conductors in series
• B. Connect the AC neutral conductor to the ground wire
• C. Connect all ground conductors to a single point
• D. Avoid using lock washers and star washers when making ground connections

G8A10

17. What is meant by the term "flat-topping," when referring to a single sideband phone transmission?

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

G3B03

18. Which of the following applies when selecting a frequency for lowest attenuation when transmitting on HF?

• A. Select a frequency just below the MUF
• B. Select a frequency just above the critical frequency
• C. Select a frequency just above the LUF
• D. Select a frequency just below the critical frequency

G4A05

19. What is a reason to use Automatic Level Control (ALC) with an RF power amplifier?

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

G2A12

20. What control is typically adjusted for proper ALC setting on an amateur single sideband transceiver?

• A. Transmit audio or microphone gain
• B. Attenuator level
• C. Antenna inductance or capacitance
• D. The RF clipping level

G1D03

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

• A. On any General or Technician class band segment
• B. Only on the Technician band segments until your license arrives in the mail
• C. Only the Technician band segments until your upgrade is posted in the FCC database
• D. On any General or Technician class band segment except 30 meters and 60 meters

G0B13

22. What must you do when powering your house from an emergency generator?

• A. All these choices are correct
• B. Insure that all lightning grounds are disconnected
• C. Disconnect the incoming utility power feed
• D. Insure that the generator is not grounded

G9C06

23. What configuration of the loops of a two-element quad antenna must be used for the antenna to operate as a beam antenna, assuming one of the elements is used as a reflector?

• A. The driven element must be fed with a balun transformer
• B. There must be an open circuit in the driven element at the point opposite the feed point
• C. The reflector element must be approximately 5 percent shorter than the driven element
• D. The reflector element must be approximately 5 percent longer than the driven element

G0A06

24. What precaution should be taken when installing a ground-mounted antenna?

• A. It should not be installed higher than you can reach
• B. It should be installed such that it is protected against unauthorized access
• C. It should be limited to 10 feet in height
• D. It should not be installed in a wet area

G5A08

25. What is one reason to use an impedance matching transformer?

• A. To minimize transmitter power output
• B. To reduce power supply ripple
• C. To minimize radiation resistance
• D. To maximize the transfer of power

G2D09

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

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

G9A12

27. What is the interaction between high standing wave ratio (SWR) and transmission line loss?

• A. If a transmission line is lossy, high SWR will increase the loss
• B. High SWR reduces the relative effect of transmission line loss
• C. High SWR makes it difficult to measure transmission line loss
• D. There is no interaction between transmission line loss and SWR

G1A14

28. Which of the following may apply in areas under FCC jurisdiction outside of ITU Region 2?

• A. Morse code may not be permitted
• B. Frequency allocations may differ
• C. Station identification may have to be in a language other than English
• D. Digital transmission may not be permitted

G1C05

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

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

G9B08

30. How does the feed point impedance of a 1/2 wave dipole change as the feed point is moved from the center toward the ends?

• A. It peaks at about 1/8 wavelength from the end
• B. It steadily decreases
• C. It steadily increases
• D. It is unaffected by the location of the feed point

G7B11

31. For which of the following modes is a Class C power stage appropriate for amplifying a modulated signal?

• A. AM
• B. All these choices are correct
• C. FM
• D. SSB

G2B05

32. When selecting an SSB transmitting frequency, what minimum separation should be used to minimize interference to stations on adjacent frequencies?

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

G8C06

33. What action results from a failure to exchange information due to excessive transmission attempts when using PACTOR or WINMOR?

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

G1B04

34. Which of the following transmissions is permitted?

• A. Coded messages of any kind, if not intended to facilitate a criminal act
• B. Retransmission of other amateur station signals by any amateur station
• C. Occasional retransmission of weather and propagation forecast information from U.S. government stations
• D. Unidentified transmissions for test purposes only

G3A13

35. What does the A-index indicate?

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