Practice Exam

G6A02

1. Which of the following types of capacitors are often used in power supply circuits to filter the rectified AC?

• A. Mica
• B. Disc ceramic
• C. Electrolytic
• D. Vacuum variable

G1C09

2. What is the maximum symbol rate permitted for RTTY or data emission transmitted on the 1.25 meter and 70 centimeter bands

• A. 1200 baud
• B. 19.6 kilobaud
• C. 300 baud
• D. 56 kilobaud

G9B01

3. What is one disadvantage of a directly fed random-wire antenna?

• A. You may experience RF burns when touching metal objects in your station
• B. It is not effective on the higher HF bands
• C. It produces only vertically polarized radiation
• D. It must be longer than 1 wavelength

G0B15

4. Which of the following is true of an emergency generator installation?

• A. Fuel should be stored near the generator for rapid refueling in case of an emergency
• B. All of these choices are correct
• C. The generator should be insulated from ground
• D. The generator should be located in a well ventilated area

G5B05

5. How many watts are dissipated when a current of 7.0 milliamperes flows through 1.25 kilohms?

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

G6B02

6. What are two major ratings that must not be exceeded for silicon diode rectifiers?

• A. Average power; average voltage
• B. Capacitive reactance; avalanche voltage
• C. Peak load impedance; peak voltage
• D. Peak inverse voltage; average forward current

G8B11

7. How does forward error correction allow the receiver to correct errors in received data packets?

• A. By using the varicode character set
• B. By transmitting redundant information with the data
• C. By controlling transmitter output power for optimum signal strength
• D. By using a parity bit with each character

G5C04

8. What is the total resistance of three 100-ohm resistors in parallel?

• A. 33.3 ohms
• B. .30 ohms
• C. .33 ohms
• D. 300 ohms

G2C09

9. What does the Q signal "QSL" mean?

• A. I acknowledge receipt
• B. Send slower
• C. We have already confirmed by card
• D. We have worked before

G2B11

10. What frequency should be used to send a distress call?

• A. Only frequencies used by police, fire or emergency medical services
• B. Only frequencies that are within your operating privileges
• C. Only frequencies authorized for RACES or ARES stations
• D. Whatever frequency has the best chance of communicating the distress message

G1B12

11. 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 ITU
• C. The FCC
• D. The Control Operator

G4E01

12. What is a "capacitance hat", when referring to a mobile antenna?

• A. A device that allows remote tuning of a mobile antenna
• B. A device to increase the power handling capacity of a mobile whip antenna
• C. A device that allows automatic band-changing for a mobile antenna
• D. A device to electrically lengthen a physically short antenna

G4D03

13. Which of the following can be the result of an incorrectly adjusted speech processor?

• A. Excessive background pickup
• B. Distorted speech
• C. All of these choices are correct
• D. Splatter

G6C09

14. Which of the following is a characteristic of a liquid crystal display?

• A. It has a wide viewing angle
• B. It offers a wide dynamic range
• C. It requires ambient or back lighting
• D. All of these choices are correct

G0A04

15. What does "time averaging" mean in reference to RF radiation exposure?

• A. The average time of day when the exposure occurs
• B. The total time of the exposure
• C. The total RF exposure averaged over a certain time
• D. The average time it takes RF radiation to have any long-term effect on the body

G1D06

16. When must you add the special identifier "AG" after your call sign if you are a Technician Class licensee and have a CSCE for General Class operator privileges, but the FCC has not yet posted your upgrade on its Web site?

• A. Whenever you operate using General Class frequency privileges
• B. Whenever you operate on any amateur frequency
• C. Whenever you operate using Technician frequency privileges
• D. A special identifier is not required as long as your General Class license application has been filed with the FCC

G4C10

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

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

G3C11

18. Which of the following antenna types will be most effective for skip communications on 40 meters during the day?

• A. Vertical antennas
• B. Right-hand circularly polarized antenna
• C. Horizontal dipoles placed between 1/8 and 1/4 wavelength above the ground
• D. Left-hand circularly polarized antennas

G1E08

19. Which of the following is a requirement for a non-licensed person to communicate with a foreign Amateur Radio station from a station with an FCC granted license at which a licensed control operator is present?

• A. The control operator must have at least a General Class license
• B. All of these choices are correct
• C. Information must be exchanged in English
• D. The foreign amateur station must be in a country with which the United States has a third party agreement

G2A09

20. Why do most amateur stations use lower sideband on the 160, 75 and 40 meter bands?

• A. Because it is fully compatible with an AM detector
• B. Lower sideband is the only sideband legal on these frequency bands
• C. Current amateur practice is to use lower sideband on these frequency bands
• D. Lower sideband is more efficient than upper sideband at these frequencies

G7A09

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

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

G3B11

22. What happens to HF propagation when the Lowest Usable Frequency (LUF) exceeds the Maximum Usable Frequency (MUF)?

• A. No HF radio frequency will support ordinary skywave communications over the path
• B. HF communications over the path are enhanced
• C. Propagation over the path on all HF frequencies is enhanced
• D. Double hop propagation along the path is more common

G2D02

23. Which of the following are objectives of the Amateur Auxiliary?

• A. To coordinate repeaters for efficient and orderly spectrum usage
• B. To encourage amateur self regulation and compliance with the rules
• C. To provide emergency and public safety communications
• D. To conduct efficient and orderly amateur licensing examinations

G7C02

24. Which circuit is used to combine signals from the carrier oscillator and speech amplifier and send the result to the filter in a typical single-sideband phone transmitter?

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

G8A08

25. Which of the following is an effect of over-modulation?

• A. Insufficient audio
• B. Frequency drift
• C. Insufficient bandwidth
• D. Excessive bandwidth

G4B16

26. What signals are used to conduct a two-tone test?

• A. Two audio frequency range square wave signals of equal amplitude
• B. Two non-harmonically related audio signals
• C. Two swept frequency tones
• D. Two audio signals of the same frequency shifted 90-degrees

G9C12

27. Which of the following is an advantage of using a gamma match for impedance matching of a Yagi antenna to 50-ohm coax feed line?

• A. It is useful for matching multiband antennas
• B. All of these choices are correct
• C. It does not require that the elements be insulated from the boom
• D. It does not require any inductors or capacitors

G1A15

28. What is the appropriate action if, when operating on either the 30 or 60 meter bands, a station in the primary service interferes with your contact?

• A. Attempt to contact the station and request that it stop the interference
• B. Increase your transmitter's power to overcome the interference
• C. Move to a clear frequency
• D. Notify the FCC's regional Engineer in Charge of the interference

G7B14

29. Which of the following describes a linear amplifier?

• A. An amplifier used as a frequency multiplier
• B. An amplifier in which the output preserves the input waveform
• C. A Class C high efficiency amplifier
• D. Any RF power amplifier used in conjunction with an amateur transceiver

G5A13

30. Which of the following devices can be used for impedance matching at radio frequencies?

• A. A length of transmission line
• B. A transformer
• C. All of these choices are correct
• D. A Pi-network

G4A11

31. Which of the following is a use for the IF shift control on a receiver?

• A. To avoid interference from stations very close to the receive frequency
• B. To change frequency rapidly
• C. To tune in stations that are slightly off frequency without changing your transmit frequency
• D. To permit listening on a different frequency from that on which you are transmitting

G9A09

32. What standing wave ratio will result from the connection of a 50-ohm feed line to a non-reactive load having a 200-ohm impedance?

• A. 1:2
• B. 2:1
• C. 4:1
• D. 1:4

G2E01

33. Which mode is normally used when sending an RTTY signal via AFSK with an SSB transmitter?

• A. USB
• B. LSB
• C. CW
• D. DSB

G9D07

34. Which of the following describes a log periodic antenna?

• A. SWR varies periodically as a function of boom length
• B. Gain varies logarithmically as a function of frequency
• C. Length and spacing of the elements increases logarithmically from one end of the boom to the other
• D. Impedance varies periodically as a function of frequency

G3A01

35. What is the sunspot number?

• A. A measure of the radio flux from the Sun measured at 10.7 cm
• B. A measure of solar activity based on counting sunspots and sunspot groups
• C. A measure of the sunspot count based on radio flux measurements
• D. A 3 digit identifier which is used to track individual sunspots