Practice Exam

E1A11

1. What authorization or licensing is required when operating an amateur station aboard a US-registered vessel in international waters?

• A. Any amateur license with an FCC Marine or Aircraft endorsement
• B. Any FCC-issued amateur license or a reciprocal permit for an alien amateur licensee
• C. Only General class or higher amateur licenses
• D. An unrestricted Radiotelephone Operator Permit

E6B08

2. Which of the following describes a type of semiconductor diode?

• A. Electrolytic rectifier
• B. CMOS-field effect
• C. Thermionic emission diode
• D. Metal-semiconductor junction

E6E12

3. What is a "Jones filter" as used as part of a HF receiver IF stage?

• A. A filter that removes impulse noise
• B. An automatic notch filter
• C. A variable bandwidth crystal lattice filter
• D. A special filter that emphasizes image responses

E3A04

4. What type of receiving system is desirable for EME communications?

• A. Equipment with very low dynamic range
• B. Equipment with very low gain
• C. Equipment with very wide bandwidth
• D. Equipment with very low noise figures

E7F11

5. What is an advantage of a period-measuring frequency counter over a direct-count type?

• A. It provides improved resolution of low-frequency signals within a comparable time period
• B. It can run on battery power for remote measurements
• C. It does not require an expensive high-precision time base
• D. It can directly measure the modulation index of an FM transmitter

E9G05

6. What type of chart is shown in Figure E9-3?

• A. Smith chart
• B. Azimuth angle radiation pattern chart
• C. Elevation angle radiation pattern chart
• D. Free-space radiation directivity chart

E1B04

7. What must be done before placing an amateur station within an officially designated wilderness area or wildlife preserve, or an area listed in the National Register of Historical Places?

• A. An Environmental Assessment must be submitted to the FCC
• B. A form FSD-15 must be submitted to the Department of the Interior
• C. A letter of intent must be filed with the National Audubon Society
• D. A proposal must be submitted to the National Park Service

E9A09

8. What is meant by antenna bandwidth?

• A. The angle formed between two imaginary lines drawn through the element ends
• B. Antenna length divided by the number of elements
• C. The angle between the half-power radiation points
• D. The frequency range over which an antenna satisfies a performance requirement

E4D01

9. What is meant by the blocking dynamic range of a receiver?

• A. The difference in dB between the noise floor and the third order intercept point
• B. The difference in dB between the noise floor and the level of an incoming signal which will cause 1 dB of gain compression
• C. The minimum difference in dB between the levels of two FM signals which will cause one signal to block the other
• D. The minimum difference in dB between two signals which produce third order intermodulation products greater than the noise floor

E6D03

10. Which of the following is true of a charge-coupled device (CCD)?

• A. It is a CMOS analog-to-digital converter
• B. It samples an analog signal and passes it in stages from the input to the output
• C. Its phase shift changes rapidly with frequency
• D. It is used in a battery charger circuit

E7G09

11. What will be the output voltage of the circuit shown in Figure E7-4 if R1 is 1000 ohms, RF is 10,000 ohms, and 0.23 volts dc is applied to the input?

• A. 0.23 volts
• B. 2.3 volts
• C. -2.3 volts
• D. -0.23 volts

E7C04

12. How does an impedance-matching circuit transform a complex impedance to a resistive impedance?

• A. It cancels the reactive part of the impedance and changes the resistive part to a desired value
• B. It introduces transconductance to cancel the reactive part of impedance
• C. It introduces negative resistance to cancel the resistive part of impedance
• D. Network resistances are substituted for load resistances and reactances are matched to the resistances

E1C05

13. When may an automatically controlled station originate third party communications?

• A. When specifically agreed upon by the sending and receiving stations
• B. When approved by the National Telecommunication and Information Administration
• C. Only when transmitting an RTTY or data emissions
• D. Never

E1F03

14. Under what circumstances may a dealer sell an external RF power amplifier capable of operation below 144 MHz if it has not been granted FCC certification?

• A. The equipment dealer assembled it from a kit
• B. It was imported from a manufacturer in a country that does not require certification of RF power amplifiers
• C. It was purchased in used condition from an amateur operator and is sold to another amateur operator for use at that operator's station
• D. It was imported from a manufacturer in another country, and it was certificated by that country's government

E7E11

15. Which of the following types of detector is well suited for demodulating SSB signals?

• A. Discriminator
• B. Product detector
• C. Phase comparator
• D. Phase detector

E6F03

16. What is the most common configuration of an optoisolator or optocoupler?

• A. An amplitude modulated helium-neon laser
• B. A frequency modulated helium-neon laser
• C. An LED and a phototransistor
• D. A lens and a photomultiplier

E9F08

17. What is the term for the ratio of the actual speed at which a signal travels through a transmission line to the speed of light in a vacuum?

• A. Standing wave ratio
• B. Velocity factor
• C. Surge impedance
• D. Characteristic impedance

E9C13

18. What is the main effect of placing a vertical antenna over an imperfect ground?

• A. It reduces low-angle radiation
• B. It causes increased SWR
• C. It reduces losses in the radiating portion of the antenna
• D. It changes the impedance angle of the matching network

E9D07

19. What is a disadvantage of using a multiband trapped antenna?

• A. It might radiate harmonics
• B. It radiates the harmonics and fundamental equally well
• C. It must be neutralized
• D. It is too sharply directional at lower frequencies

E5D17

20. How many watts are consumed in a circuit having a power factor of 0.6 if the input is 200V AC at 5 amperes?

• A. 600 watts
• B. 1600 watts
• C. 200 watts
• D. 1000 watts

E0A05

21. What is one of the potential hazards of using microwaves in the amateur radio bands?

• A. Microwaves often travel long distances by ionospheric reflection
• B. The high gain antennas commonly used can result in high exposure levels
• C. The extremely high frequency energy can damage the joints of antenna structures
• D. Microwaves are ionizing radiation

E8B09

22. What is meant by deviation ratio?

• A. The ratio of the maximum carrier frequency deviation to the highest audio modulating frequency
• B. The ratio of the audio modulating frequency to the center carrier frequency
• C. The ratio of the highest audio modulating frequency to the average audio modulating frequency
• D. The ratio of the carrier center frequency to the audio modulating frequency

E7D13

23. What is the purpose of D1 in the circuit shown in Figure E7-3?

• A. Peak clipping
• B. Hum filtering
• C. To provide a voltage reference
• D. To provide line voltage stabilization

E5B01

24. What is the term for the time required for the capacitor in an RC circuit to be charged to 63.2% of the applied voltage?

• A. One time constant
• B. An exponential rate of one
• C. A time factor of one
• D. One exponential period

E5C09

25. When using rectangular coordinates to graph the impedance of a circuit, what does the horizontal axis represent?

• A. Reactive component
• B. Resistive component
• C. The sum of the reactive and resistive components
• D. The difference between the resistive and reactive components

E4C07

26. What does the MDS of a receiver represent?

• A. The maximum detectable spectrum
• B. The meter display sensitivity
• C. The minimum discernible signal
• D. The multiplex distortion stability

E7B02

27. What is a Class D amplifier?

• A. A type of amplifier that uses switching technology to achieve high efficiency
• B. An amplifier using drift-mode FETs for high efficiency
• C. A low power amplifier using a differential amplifier for improved linearity
• D. A frequency doubling amplifier

E1E07

28. What should a VE do if a candidate fails to comply with the examiner's instructions during an amateur operator license examination?

• A. Immediately terminate everyones examination and close the session
• B. Allow the candidate to complete the examination, but invalidate the results
• C. Immediately terminate the candidate's examination
• D. Warn the candidate that continued failure to comply will result in termination of the examination

E5A05

29. What is the magnitude of the current at the input of a series RLC circuit as the frequency goes through resonance?

• A. Maximum
• B. L/R
• C. Minimum
• D. R/L

E2C02

30. Which of the following best describes the term "self-spotting" in regards to contest operating?

• A. The generally prohibited practice of posting one's own call sign and frequency on a call sign spotting network
• B. A manual technique for rapidly zero beating or tuning to a station's frequency before calling that station
• C. An automatic method for rapidly zero beating or tuning to a station's frequency before calling that station
• D. The acceptable practice of manually posting the call signs of stations on a call sign spotting network

E4A12

31. Which of the following procedures is an important precaution to follow when connecting a spectrum analyzer to a transmitter output?

• A. Use high quality double shielded coaxial cables to reduce signal losses
• B. All of these choices are correct
• C. Match the antenna to the load
• D. Attenuate the transmitter output going to the spectrum analyzer

E8D05

32. If an RMS-reading AC voltmeter reads 65 volts on a sinusoidal waveform, what is the peak-to-peak voltage?

• A. 130 volts
• B. 184 volts
• C. 92 volts
• D. 46 volts

E2A01

33. What is the direction of an ascending pass for an amateur satellite?

• A. From east to west
• B. From south to north
• C. From west to east
• D. From north to south

E1D05

34. What class of licensee is authorized to be the control operator of a space station?

• A. All classes
• B. Only General, Advanced or Amateur Extra Class
• C. Only Amateur Extra Class
• D. All except Technician Class

E3C07

35. How does the radiation pattern of a horizontally polarized 3-element beam antenna vary with its height above ground?

• A. The main lobe takeoff angle decreases with increasing height
• B. The horizontal beam width decreases with height
• C. The main lobe takeoff angle increases with increasing height
• D. The horizontal beam width increases with height

E2E09

36. Which of the following HF digital modes uses variable-length coding for bandwidth efficiency?

• A. MT63
• B. RTTY
• C. PACTOR
• D. PSK31

E3B05

37. Which amateur bands typically support long-path propagation?

• A. 6 meters to 2 meters
• B. 160 to 10 meters
• C. 30 to 10 meters
• D. 160 to 40 meters

E7A12

38. What is the name for logic which represents a logic "0" as a high voltage?

• A. Positive Logic
• B. Assertive Logic
• C. Reverse Logic
• D. Negative logic

E4B15

39. Which of the following can be used as a relative measurement of the Q for a series-tuned circuit?

• A. The bandwidth of the circuit's frequency response
• B. The inductance to capacitance ratio
• C. The frequency shift
• D. The resonant frequency of the circuit

E6C03

40. Which of the following describes tri-state logic?

• A. Proprietary logic devices manufactured by Tri-State Devices
• B. Low power logic devices designed to operate at 3 volts
• C. Logic devices with 0, 1, and high impedance output states
• D. Logic devices that utilize ternary math

E2B08

41. Which of the following is a common method of transmitting accompanying audio with amateur fast-scan television?

• A. A separate VHF or UHF audio link
• B. All of these choices are correct
• C. Frequency-modulated sub-carrier
• D. Frequency modulation of the video carrier

E9H01

42. What is the effective radiated power relative to a dipole of a repeater station with 150 watts transmitter power output, 2-dB feed line loss, 2.2-dB duplexer loss and 7-dBd antenna gain?

• A. 1977 watts
• B. 78.7 watts
• C. 420 watts
• D. 286 watts

E4E01

43. Which of the following types of receiver noise can often be reduced by use of a receiver noise blanker?

• A. Broadband white noise
• B. All of these choices are correct
• C. Ignition noise
• D. Heterodyne interference

E7H15

44. Which of these functions can be performed by a phase-locked loop?

• A. Comparison of two digital input signals, digital pulse counter
• B. Wide-band AF and RF power amplification
• C. Photovoltaic conversion, optical coupling
• D. Frequency synthesis, FM demodulation

E8A06

45. What is the approximate ratio of PEP-to-average power in a typical single-sideband phone signal?

• A. 25 to 1
• B. 1 to 1
• C. 100 to 1
• D. 2.5 to 1

E6A01

46. In what application is gallium arsenide used as a semiconductor material in preference to germanium or silicon?

• A. In high-power audio circuits
• B. At very low frequency RF circuits
• C. At microwave frequencies
• D. In high-current rectifier circuits

E9B11

47. What is a disadvantage of decreasing the number of wire segments in an antenna model below the guideline of 10 segments per half-wavelength?

• A. The computed feed point impedance may be incorrect
• B. The antenna will become mechanically unstable
• C. Ground conductivity will not be accurately modeled
• D. The resulting design will favor radiation of harmonic energy

E2D11

48. Which of the following data are used by the APRS network to communicate your location?

• A. Latitude and longitude
• B. Polar coordinates
• C. Radio direction finding LOPs
• D. Time and frequency

E9E11

49. What is an effective way of matching a feed line to a VHF or UHF antenna when the impedances of both the antenna and feed line are unknown?

• A. Use a 50-ohm 1:1 balun between the antenna and feed line
• B. Connect a series-resonant LC network across the antenna feed terminals
• C. Use the "universal stub" matching technique
• D. Connect a parallel-resonant LC network across the antenna feed terminals

E8C13

50. What is one advantage of using JT-65 coding?

• A. Uses only a 65 Hz bandwidth
• B. Permits fast-scan TV transmissions over narrow bandwidth
• C. The ability to decode signals which have a very low signal to noise ratio
• D. Easily copied by ear if necessary