Practice Exam

G8B06

1. What is the total bandwidth of an FM phone transmission having 5 kHz deviation and 3 kHz modulating frequency?

• A. 3 kHz
• B. 16 kHz
• C. 8 kHz
• D. 5 kHz

G9A11

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

• A. Higher loss increases SWR measured at the input to the line
• B. Transmission line loss does not affect the SWR measurement
• C. Higher loss reduces SWR measured at the input to the line
• D. Higher loss increases the accuracy of SWR measured at the input to the line

G1B01

3. 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. 200 feet
• B. 250 feet
• C. 50 feet
• D. 100 feet

G0A10

4. What should be done if evaluation shows that a neighbor might experience more than the allowable limit of RF exposure from the main lobe of a directional antenna?

• A. Change to a non-polarized antenna with higher gain
• B. Take precautions to ensure that the antenna cannot be pointed in their direction when they are present
• C. All these choices are correct
• D. Use an antenna with a higher front-to-back ratio

G2C08

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

• A. BK
• B. KN
• C. SK
• D. AR

G7B08

6. How is the efficiency of an RF power amplifier determined?

• A. Add the RF input power to the DC output power
• B. Multiply the RF input power by the reciprocal of the RF output power
• C. Divide the RF output power by the DC input power
• D. Divide the DC input power by the DC output power

G9C05

7. What is the primary effect of increasing boom length and adding directors to a Yagi antenna?

• A. Front-to-back ratio decreases
• B. Gain increases
• C. Resonant frequency is lower
• D. Beamwidth increases

G5C04

8. What is the approximate total resistance of a 100- and a 200-ohm resistor in parallel?

• A. 67 ohms
• B. 300 ohms
• C. 150 ohms
• D. 75 ohms

G1C09

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

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

G3C08

10. Why are HF scatter signals in the skip zone usually weak?

• A. Signals are scattered from the magnetosphere, which is not a good reflector
• B. Propagation is via ground waves, which absorb most of the signal energy
• C. Propagation is via ducts in the F region, which absorb most of the energy
• D. Only a small part of the signal energy is scattered into the skip zone

G9B07

11. How does the feed point impedance of a horizontal 1/2 wave dipole antenna change as the antenna height is reduced to 1/10 wavelength above ground?

• A. It steadily decreases
• B. It is unaffected by the height above ground
• C. It steadily increases
• D. It peaks at about 1/8 wavelength above ground

G4E06

12. What is one disadvantage of using a shortened mobile antenna as opposed to a full-size antenna?

• A. Short antennas are more likely to cause distortion of transmitted signals
• B. Q of the antenna will be very low
• C. Operating bandwidth may be very limited
• D. Harmonic radiation may increase

G4D11

13. How close to the upper edge of a band's phone segment should your displayed carrier frequency be when using 3 kHz wide USB?

• A. At least 1 kHz below the edge of the segment
• B. At least 3 kHz below the edge of the band
• C. At least 1 kHz above the edge of the segment
• D. At least 3 kHz above the edge of the band

G5A12

14. What occurs in an LC circuit at resonance?

• A. Inductive reactance and capacitive reactance cancel
• B. The circuit radiates all its energy in the form of radio waves
• C. Resistance is cancelled
• D. Current and voltage are equal

G4C07

15. Why should soldered joints not be used in lightning protection ground connections?

• A. All these choices are correct
• B. A soldered joint will likely be destroyed by the heat of a lightning strike
• C. Solder has too high a dielectric constant to provide adequate lightning protection
• D. Solder flux will prevent a low conductivity connection

G7A12

16. Which symbol in Figure G7-1 represents a solid core transformer?

• A. Symbol 6
• B. Symbol 7
• C. Symbol 4
• D. Symbol 1

G1E12

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

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

G2A09

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

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

G2B02

19. 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. Immediately cease all transmissions
• C. Immediately decrease power to avoid interfering with the station in distress
• D. Acknowledge the station in distress and determine what assistance may be needed

G7C02

20. What output is produced by a balanced modulator?

• A. Double-sideband modulated RF
• B. Audio with equalized frequency response
• C. Frequency modulated RF
• D. Audio extracted from the modulation signal

G0B13

21. Where should lightning arrestors be located?

• A. On the antenna, opposite the feed point
• B. In series with each ground lead
• C. At the closest power pole ground electrode
• D. Where the feed lines enter the building

G9D06

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

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

G2D10

23. What is QRP operation?

• A. Remote piloted model control
• B. Low-power transmit operation
• C. Traffic relay procedure net operation
• D. Transmission using Quick Response Protocol

G3A01

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

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

G6A08

25. Which of the following is characteristic of low voltage ceramic capacitors?

• A. Tight tolerance
• B. High capacitance for given volume
• C. High stability
• D. Comparatively low cost

G8C08

26. Which of the following statements is true about PSK31?

• A. Upper case letters use longer Varicode bit sequences and thus slow down transmission
• B. Error correction is used to ensure accurate message reception
• C. Higher power is needed as compared to RTTY for similar error rates
• D. Upper case letters are sent with more power

G1D09

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

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

G1A09

28. Which of the following frequencies is within the General class portion of the 15-meter band?

• A. 21300 kHz
• B. 14250 kHz
• C. 24900 kHz
• D. 18155 kHz

G8A13

29. What is a link budget?

• A. The sum of transmit power and antenna gains minus system losses as seen at the receiver
• B. The sum of antenna gains minus system losses
• C. The financial costs associated with operating a radio link
• D. The difference between transmit power and receiver sensitivity

G5B08

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

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

G4B02

31. Which of the following is an advantage of an oscilloscope versus a digital voltmeter?

• A. Greater precision
• B. An oscilloscope uses less power
• C. Complex impedances can be easily measured
• D. Complex waveforms can be measured

G2E13

32. What is another name for a Winlink Remote Message Server?

• A. Gateway
• B. Terminal Node Controller
• C. Printer/Server
• D. RJ-45

G6B02

33. What is meant by the term MMIC?

• A. Mode Modulated Integrated Circuit
• B. Multi-Mode Integrated Circuit
• C. Monolithic Microwave Integrated Circuit
• D. Metal Monolayer Integrated Circuit

G3B07

34. What does LUF stand for?

• A. Lowest Usable Frequency during the past 60 minutes
• B. The Lowest Usable Frequency during a 24-hour period
• C. The Lowest Usable Frequency for communications between two specific points
• D. Lowest Usable Frequency for communications to any point outside a 100-mile radius

G4A04

35. What is the effect on plate current of the correct setting of a vacuum-tube RF power amplifier's TUNE control?

• A. A slow, rhythmic oscillation
• B. No change will be observed
• C. A pronounced dip
• D. A pronounced peak