Practice Exam

G5C10

1. What is the inductance of three 10-millihenry inductors connected in parallel?

• A. 3.3 henries
• B. 30 millihenries
• C. 3.3 millihenries
• D. 0.30 henries

G4E01

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

• A. To electrically lengthen a physically short antenna
• B. To lower the radiation angle
• C. To increase the power handling capacity of a whip antenna
• D. To reduce radiation resistance

G1E12

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

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

G2A10

4. Which of the following statements is true of VOX operation versus PTT operation?

• A. It occupies less bandwidth
• B. It provides more power output
• C. The received signal is more natural sounding
• D. It allows "hands free" operation

G7B09

5. What determines the frequency of an LC oscillator?

• A. The inductance and capacitance in the tank circuit
• B. The number of stages in the divider
• C. The number of stages in the counter
• D. The time delay of the lag circuit

G1A01

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

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

G1B08

7. When is it permissible to communicate with amateur stations in countries outside the areas administered by the Federal Communications Commission?

• A. When the contact is with amateurs in any country except those whose administrations have notified the ITU that they object to such communications
• B. Only when the contact is with amateurs licensed by a country which is a member of the United Nations, or by a territory possessed by such a country
• C. Only when the foreign country has a formal third-party agreement filed with the FCC
• D. Only when the contact is with amateurs licensed by a country which is a member of the International Amateur Radio Union, or by a territory possessed by such a country

G3A01

8. How does a higher sunspot number affect HF propagation?

• A. A zero sunspot number indicates that radio propagation is not possible on any band
• B. Higher sunspot numbers generally indicate a greater probability of good propagation at higher frequencies
• C. A zero sunspot number indicates undisturbed conditions
• D. Lower sunspot numbers generally indicate greater probability of sporadic E propagation

G0A02

9. Which of the following is used to determine RF exposure from a transmitted signal?

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

G7A09

10. Which symbol in figure G7-1 represents a field effect transistor?

• A. Symbol 2
• B. Symbol 1
• C. Symbol 5
• D. Symbol 4

G6B11

11. What is an SMA connector?

• A. A type-S to type-M adaptor
• B. A connector designed for serial multiple access signals
• C. A type of push-on connector intended for high-voltage applications
• D. A small threaded connector suitable for signals up to several GHz

G4D02

12. How does a speech processor affect a single sideband phone signal?

• A. It increases peak power
• B. It increases average power
• C. It reduces intermodulation distortion
• D. It reduces harmonic distortion

G5B13

13. What is the output PEP of an unmodulated carrier if the average power is 1060 watts?

• A. 1500 watts
• B. 1060 watts
• C. 530 watts
• D. 2120 watts

G2D06

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

• A. Toward the rising sun
• B. Along the gray line
• C. 180 degrees from the station's short-path heading
• D. Toward the north

G4C02

15. Which of the following could be a cause of interference covering a wide range of frequencies?

• A. Not using a balun or line isolator to feed balanced antennas
• B. Lack of rectification of the transmitter's signal in power conductors
• C. Arcing at a poor electrical connection
• D. Using a balun to feed an unbalanced antenna

G8A01

16. How is direct binary FSK modulation generated?

• A. By using a transceiver's computer data interface protocol to change frequencies
• B. By changing an oscillator's frequency directly with a digital control signal
• C. By reconfiguring the CW keying input to act as a tone generator
• D. By keying an FM transmitter with a sub-audible tone

G8B09

17. Why is it good to match receiver bandwidth to the bandwidth of the operating mode?

• A. It improves impedance matching of the antenna
• B. It results in the best signal-to-noise ratio
• C. It is required by FCC rules
• D. It minimizes power consumption in the receiver

G9B08

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

G2B03

19. What is good amateur practice if propagation changes during a contact creating interference from other stations using the frequency?

• A. Decrease power and continue to transmit
• B. Switch to the opposite sideband
• C. Attempt to resolve the interference problem with the other stations in a mutually acceptable manner
• D. Advise the interfering stations that you are on the frequency and that you have priority

G2E05

20. What is the standard sideband for JT65, JT9, FT4, or FT8 digital signal when using AFSK?

• A. SSB
• B. DSB
• C. LSB
• D. USB

G5A09

21. What unit is used to measure reactance?

• A. Siemens
• B. Ohm
• C. Ampere
• D. Farad

G9C03

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

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

G3B11

23. What happens to HF propagation when the LUF exceeds the MUF?

• A. Propagation over the path on all HF frequencies is enhanced
• B. HF communications over the path are enhanced
• C. Propagation via ordinary skywave communications is not possible over that path
• D. Double-hop propagation along the path is more common

G4B11

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

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

G6A04

25. Which of the following is characteristic of an electrolytic capacitor?

• A. Inexpensive RF capacitor
• B. Tight tolerance
• C. High capacitance for a given volume
• D. Much less leakage than any other type

G8C03

26. What part of a packet radio frame contains the routing and handling information?

• A. Header
• B. Trailer
• C. Preamble
• D. Directory

G1C07

27. What must be done before using a new digital protocol on the air?

• A. Submit a rule-making proposal to the FCC describing the codes and methods of the technique
• B. Publicly document the technical characteristics of the protocol
• C. Type-certify equipment to FCC standards
• D. Obtain an experimental license from the FCC

G0B11

28. Which of the following is required for lightning protection ground rods?

• A. They must be bonded together with all other grounds
• B. Bends in ground wires must be made as close as possible to a right angle
• C. They must be bonded to all buried water and gas lines
• D. Lightning grounds must be connected to all ungrounded wiring

G7C12

29. What is the frequency above which a low-pass filter's output power is less than half the input power?

• A. Rolloff frequency
• B. Cutoff frequency
• C. Neper frequency
• D. Notch frequency

G3C03

30. Why is skip propagation via the F2 region longer than that via the other ionospheric regions?

• A. Because it is the highest
• B. Because of temperature inversions
• C. Because it is the densest
• D. Because of the Doppler effect

G1D09

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

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

G4A03

32. How does a noise blanker work?

• A. By redirecting noise pulses into a filter capacitor
• B. By temporarily increasing received bandwidth
• C. By clipping noise peaks
• D. By reducing receiver gain during a noise pulse

G2C08

33. What prosign is sent to indicate the end of a formal message when using CW?

• A. AR
• B. BK
• C. SK
• D. KN

G9A11

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

• A. Transmission line loss does not affect the SWR measurement
• B. Higher loss increases SWR measured at the input to the line
• 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

G9D08

35. How does a "screwdriver" mobile antenna adjust its feed point impedance?

• A. By extending and retracting the whip
• B. By varying its body capacitance
• C. By deploying a capacitance hat
• D. By varying the base loading inductance