Practice Exam

G4C10

1. What could be a symptom of a ground loop somewhere in your station?

• A. You receive reports of "hum" on your station's transmitted signal
• B. The SWR reading for one or more antennas is suddenly very high
• C. An item of station equipment starts to draw excessive amounts of current
• D. You receive reports of harmonic interference from your station

G1B09

2. When may an amateur station transmit communications in which the licensee or control operator has a pecuniary (monetary) interest?

• A. When other amateurs are being notified of the sale of apparatus normally used in an amateur station and such activity is not done on a regular basis
• B. When other amateurs are being notified of the sale of any item with a monetary value less than $200 and such activity is not done on a regular basis
• C. Never
• D. Only when there is no other means of communications readily available

G1E05

3. What types of messages for a third party in another country may be transmitted by an amateur station?

• A. Only messages for other licensed amateurs
• B. Only messages relating to Amateur Radio or remarks of a personal character, or messages relating to emergencies or disaster relief
• C. Any message, as long as the amateur operator is not paid
• D. Any messages, as long as the text of the message is recorded in the station log

G8B04

4. What is the name of the stage in a VHF FM transmitter that generates a harmonic of a lower frequency signal to reach the desired operating frequency?

• A. Mixer
• B. Reactance modulator
• C. Pre-emphasis network
• D. Multiplier

G5C14

5. Which of the following components should be added to an inductor to increase the inductance?

• A. An inductor in series
• B. An inductor in parallel
• C. A resistor in parallel
• D. A capacitor in series

G9C04

6. Which statement about a three-element; single-band Yagi antenna is true?

• A. The director is normally the longest parasitic element
• B. The reflector is normally the shortest parasitic element
• C. The reflector is normally the longest parasitic element
• D. All of the elements must be the same length

G0B03

7. Which size of fuse or circuit breaker would be appropriate to use with a circuit that uses AWG number 14 wiring?

• A. 15 amperes
• B. 60 amperes
• C. 30 amperes
• D. 100 amperes

G8A04

8. What emission is produced by a reactance modulator connected to an RF power amplifier?

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

G2D06

9. How is a directional antenna pointed when making a "long-path" contact with another station?

• A. 180 degrees from its short-path heading
• B. Toward the north
• C. Along the gray line
• D. Toward the rising Sun

G7A04

10. What is the peak-inverse-voltage across the rectifier in a half-wave power supply?

• A. One-half the normal peak output voltage of the power supply
• B. Equal to the normal output voltage of the power supply
• C. Two times the normal peak output voltage of the power supply
• D. One-half the normal output voltage of the power supply

G2A03

11. Which of the following is most commonly used for SSB voice communications in the VHF and UHF bands?

• A. Vestigial sideband
• B. Double sideband
• C. Lower sideband
• D. Upper sideband

G3B08

12. What does MUF stand for?

• A. The Maximum Usable Frequency during a 24 hour period
• B. The Minimum Usable Frequency for communications between two points
• C. The Minimum Usable Frequency during a 24 hour period
• D. The Maximum Usable Frequency for communications between two points

G9A05

13. How does the attenuation of coaxial cable change as the frequency of the signal it is carrying increases?

• A. It increases
• B. It is independent of frequency
• C. It decreases
• D. It reaches a maximum at approximately 18 MHz

G6B08

14. Why must the cases of some large power transistors be insulated from ground?

• A. To improve the power dissipation capability
• B. To avoid shorting the collector or drain voltage to ground
• C. To reduce stray capacitance
• D. To increase the beta of the transistor

G6C01

15. Which of the following is an analog integrated circuit?

• A. Microprocessor
• B. NAND Gate
• C. Frequency Counter
• D. Linear voltage regulator

G0A02

16. Which of the following properties is important in estimating whether an RF signal exceeds the maximum permissible exposure (MPE)?

• A. Its frequency
• B. Its power density
• C. All of these choices are correct
• D. Its duty cycle

G9D09

17. Which of the following is an application for a Beverage antenna?

• A. Directional receiving for low HF bands
• B. Portable direction finding at higher HF frequencies
• C. Directional transmitting for low HF bands
• D. Portable direction finding at lower HF frequencies

G4A09

18. Why is a time delay sometimes included in a transmitter keying circuit?

• A. To prevent stations from talking over each other
• B. To allow time for a warning signal to be sent to other stations
• C. To allow time for transmit-receive changeover operations to complete properly before RF output is allowed
• D. To allow the transmitter power regulators to charge properly

G2C07

19. When sending CW, what does a "C" mean when added to the RST report?

• A. Chirpy or unstable signal
• B. Key clicks
• C. 100 percent copy
• D. Report was read from S meter reading rather than estimated

G4B10

20. Which of the following can be determined with a directional wattmeter?

• A. RF interference
• B. Standing wave ratio
• C. Antenna front-to-back ratio
• D. Radio wave propagation

G7C03

21. What circuit is used to process signals from the RF amplifier and local oscillator and send the result to the IF filter in a superheterodyne receiver?

• A. Detector
• B. IF amplifier
• C. Balanced modulator
• D. Mixer

G5A01

22. What is impedance?

• A. The opposition to the flow of current in an AC circuit
• B. The force of repulsion between two similar electric fields
• C. The inverse of resistance
• D. The electric charge stored by a capacitor

G7B11

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

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

G4D09

24. What frequency range is occupied by a 3 kHz USB signal with the displayed carrier frequency set to 14.347 MHz?

• A. 14.344 to 14.347 MHz
• B. 14.347 to 14.647 MHz
• C. 14.347 to 14.350 MHz
• D. 14.3455 to 14.3485 MHz

G1C03

25. What is the maximum bandwidth permitted by FCC rules for Amateur Radio stations when transmitting on USB frequencies in the 60 meter band?

• A. 2.8 kHz
• B. 1.8 kHz
• C. 5.6 kHz
• D. 3 kHz

G3A09

26. What effect do high sunspot numbers have on radio communications?

• A. Frequencies above 300 MHz become usable for long-distance communication
• B. Long-distance communication in the upper HF and lower VHF range is enhanced
• C. Microwave communications become unstable
• D. High-frequency radio signals become weak and distorted

G3C07

27. What makes HF scatter signals often sound distorted?

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

G1D05

28. Which of the following is sufficient for you to be an administering VE for a Technician Class operator license examination?

• A. Receipt of a CSCE for General Class
• B. An FCC General Class or higher license and VEC accreditation
• C. Notification to the FCC that you want to give an examination
• D. Possession of a properly obtained telegraphy license

G5B12

29. What would be the RMS voltage across a 50-ohm dummy load dissipating 1200 watts?

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

G2E04

30. What segment of the 20 meter band is most often used for data transmissions?

• A. 14.150 - 14.225 MHz
• B. 14.000 - 14.050 MHz
• C. 14.070 - 14.100 MHz
• D. 14.275 - 14.350 MHz

G6A11

31. Why would it be important to minimize the mutual inductance between two inductors?

• A. To reduce conducted emissions
• B. To reduce unwanted coupling between circuits
• C. To increase the self-resonant frequency of the inductors
• D. To increase the energy transfer between circuits

G9B12

32. What is the approximate length for a 1/4-wave vertical antenna cut for 28.5 MHz?

• A. 16 feet
• B. 11 feet
• C. 8 feet
• D. 21 feet

G1A05

33. Which of the following frequencies is in the General Class portion of the 40 meter band?

• A. 7.500 MHz
• B. 7.250 MHz
• C. 40.500 MHz
• D. 40.200 MHz

G2B01

34. Which of the following is true concerning access to frequencies?

• A. No one has priority access to frequencies, common courtesy should be a guide
• B. QSO's in process always have priority
• C. Contest operations must always yield to non-contest use of frequencies
• D. Nets always have priority

G4E11

35. Which of the following is a disadvantage of using wind as the primary source of power for an emergency station?

• A. A large energy storage system is needed to supply power when the wind is not blowing
• B. The conversion efficiency from mechanical energy to electrical energy is less than 2 percent
• C. All of these choices are correct
• D. The voltage and current ratings of such systems are not compatible with amateur equipment