Practice Exam

G7C10

1. What is an advantage of using I-Q modulation with software-defined radios (SDRs)?

• A. Automatic conversion of the signal from digital to analog
• B. The need for high resolution analog-to-digital converters is eliminated
• C. Minimum detectible signal level is reduced
• D. All types of modulation can be created with appropriate processing

G1A10

2. What portion of the 10-meter band is available for repeater use?

• A. The entire band
• B. The portion above 29.5 MHz
• C. The portion between 28.1 MHz and 28.2 MHz
• D. The portion between 28.3 MHz and 28.5 MHz

G6B03

3. Which of the following is an advantage of CMOS integrated circuits compared to TTL integrated circuits?

• A. Better suited for RF amplification
• B. Better suited for power supply regulation
• C. Low power consumption
• D. High power handling capability

G1C09

4. What is the maximum power limit on the 60-meter band?

• A. 1500 watts PEP
• B. ERP of 100 watts PEP with respect to an isotropic antenna
• C. 10 watts RMS
• D. ERP of 100 watts PEP with respect to a dipole

G7B01

5. What is the purpose of neutralizing an amplifier?

• A. To eliminate self-oscillations
• B. To cut off the final amplifier during standby periods
• C. To keep the carrier on frequency
• D. To limit the modulation index

G1D06

6. Until an upgrade to General class is shown in the FCC database, when must a Technician licensee identify with "AG" after their call sign?

• A. Whenever they operate on any amateur frequency
• B. Whenever they operate using Technician frequency privileges
• C. A special identifier is not required if their General class license application has been filed with the FCC
• D. Whenever they operate using General class frequency privileges

G0A01

7. What is one way that RF energy can affect human body tissue?

• A. It causes radiation poisoning
• B. It cools body tissue
• C. It causes the blood count to reach a dangerously low level
• D. It heats body tissue

G5B08

8. What is the peak-to-peak voltage of a sine wave with an RMS voltage of 120 volts?

• A. 339.4 volts
• B. 84.8 volts
• C. 240.0 volts
• D. 169.7 volts

G8A04

9. What emission is produced by a reactance modulator connected to a transmitter RF amplifier stage?

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

G0B04

10. Where should the station's lightning protection ground system be located?

• A. As close to the station equipment as possible
• B. Parallel to the water supply line
• C. Next to the closest power pole
• D. Outside the building

G4C11

11. What technique helps to minimize RF "hot spots" in an amateur station?

• A. Building all equipment in a metal enclosure
• B. Bonding all equipment enclosures together
• C. Placing low-pass filters on all feed lines
• D. Using surge suppressor power outlets

G3B10

12. What is the approximate maximum distance along the Earth's surface normally covered in one hop using the E region?

• A. 180 miles
• B. 1,200 miles
• C. 12,000 miles
• D. 2,500 miles

G6A02

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

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

G4B03

14. Which of the following is the best instrument to use for checking the keying waveform of a CW transmitter?

• A. An oscilloscope
• B. A sidetone monitor
• C. A wavemeter
• D. A field strength meter

G2A02

15. Which mode is most commonly used for voice communications on the 160-, 75-, and 40-meter bands?

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

G5C13

16. Which of the following components should be added to a capacitor to increase the capacitance?

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

G1B01

17. What is the maximum height above ground for an antenna structure not near a public use airport without requiring notification to the FAA and registration with the FCC?

• A. 50 feet
• B. 250 feet
• C. 200 feet
• D. 100 feet

G5A02

18. What is reactance?

• A. Reinforcement of the flow of alternating current caused by capacitance or inductance
• B. Opposition to the flow of direct current caused by resistance
• C. Opposition to the flow of alternating current caused by capacitance or inductance
• D. Reinforcement of the flow of direct current caused by resistance

G7A11

19. Which symbol in figure G7-1 represents an NPN junction transistor?

• A. Symbol 11
• B. Symbol 7
• C. Symbol 2
• D. Symbol 1

G2B02

20. What is the first thing you should do if you are communicating with another amateur station and hear a station in distress break in?

• A. Inform your local emergency coordinator
• B. Acknowledge the station in distress and determine what assistance may be needed
• C. Immediately decrease power to avoid interfering with the station in distress
• D. Immediately cease all transmissions

G9D09

21. What is the primary use of a Beverage antenna?

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

G9A02

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

• A. High SWR makes it difficult to measure transmission line loss
• B. There is no relationship between transmission line loss and SWR
• C. High SWR increases loss in a lossy transmission line
• D. High SWR reduces the relative effect of transmission line loss

G8C09

23. Which is true of mesh network microwave nodes?

• A. More nodes reduce overall microwave out of band interference
• B. Having more nodes increases signal strengths
• C. If one node fails, a packet may still reach its target station via an alternate node
• D. Links between two nodes in a network may have different frequencies and bandwidths

G4E01

24. 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

G2D03

25. What procedure may be used by Volunteer Monitors to localize a station whose continuous carrier is holding a repeater on in their area?

• A. Compare beam headings on the repeater input from their home locations with that of other Volunteer Monitors
• B. Compare vertical and horizontal signal strengths on the input frequency
• C. Compare signal strengths between the input and output of the repeater
• D. All these choices are correct

G4D06

26. How much change in signal strength is typically represented by one S unit?

• A. 15 dB
• B. 12 dB
• C. 6 dB
• D. 18 dB

G2C04

27. What does the Q signal "QRL?" mean?

• A. "Are you busy?" or "Is this frequency in use?"
• B. "Will you keep the frequency clear?"
• C. "Are you listening only for a specific station?"
• D. "Are you operating full break-in?" or "Can you operate full break-in?"

G2E03

28. What symptoms may result from other signals interfering with a PACTOR or VARA transmission?

• A. All these choices are correct
• B. Long pauses in message transmission
• C. Frequent retries or timeouts
• D. Failure to establish a connection between stations

G8B11

29. What combination of a mixer's Local Oscillator (LO) and RF input frequencies is found in the output?

• A. The arithmetic product
• B. The sum and difference
• C. The ratio
• D. The average

G3C06

30. What is a characteristic of HF scatter?

• A. There are very large, sudden swings in signal strength
• B. Phone signals have high intelligibility
• C. Signals have a fluttering sound
• D. Scatter propagation occurs only at night

G3A06

31. What is a geomagnetic storm?

• A. Ripples in the geomagnetic force
• B. A thunderstorm that affects radio propagation
• C. A sudden drop in the solar flux index
• D. A temporary disturbance in Earth's geomagnetic field

G9B02

32. Which of the following is a common way to adjust the feed point impedance of an elevated quarter-wave ground-plane vertical antenna to be approximately 50 ohms?

• A. Lengthen the radials beyond one wavelength
• B. Coil the radials
• C. Slope the radials downward
• D. Slope the radials upward

G1E01

33. Which of the following would disqualify a third party from participating in sending a message via an amateur station?

• A. The third party is not a US citizen
• B. The third party is speaking in a language other than English
• C. All these choices are correct
• D. The third party's amateur license has been revoked and not reinstated

G9C12

34. Which of the following is a characteristic of using a gamma match with a Yagi antenna?

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

G4A01

35. What is the purpose of the notch filter found on many HF transceivers?

• A. To eliminate receiver interference from impulse noise sources
• B. To restrict the transmitter voice bandwidth
• C. To remove interfering splatter generated by signals on adjacent frequencies
• D. To reduce interference from carriers in the receiver passband