Practice Exam

T9B10

1. What is the electrical difference between RG-58 and RG-213 coaxial cable?

• A. There is no significant difference between the two types
• B. RG-213 cable has less loss at a given frequency
• C. RG-58 cable has two shields
• D. RG-58 cable can handle higher power levels

T7A04

2. Which term describes the ability of a receiver to discriminate between multiple signals?

• A. Discrimination ratio
• B. Sensitivity
• C. Harmonic distortion
• D. Selectivity

T2B11

3. Which Q signal indicates that you are changing frequency?

• A. QSL
• B. QRU
• C. QSY
• D. QRZ

T8A08

4. What is the approximate bandwidth of a typical single sideband (SSB) voice signal?

• A. 3 kHz
• B. 6 kHz
• C. 15 kHz
• D. 1 kHz

T6C02

5. What is component 1 in figure T-1?

• A. Transistor
• B. Resistor
• C. Battery
• D. Connector

T0A12

6. Which of the following precautions should be taken when measuring high voltages with a voltmeter?

• A. Ensure that the voltmeter is set to the correct frequency
• B. Ensure that the voltmeter has very low impedance
• C. Ensure that the voltmeter and leads are rated for use at the voltages to be measured
• D. Ensure that the circuit is grounded through the voltmeter

T7B11

7. What is a symptom of RF feedback in a transmitter or transceiver?

• A. The transmitter will not stay on the desired frequency
• B. Reports of garbled, distorted, or unintelligible voice transmissions
• C. Excessive SWR at the antenna connection
• D. Frequent blowing of power supply fuses

T5B10

8. Which decibel value most closely represents a power decrease from 12 watts to 3 watts?

• A. -9 dB
• B. -6 dB
• C. -1 dB
• D. -3 dB

T1D07

9. What types of amateur stations can automatically retransmit the signals of other amateur stations?

• A. Auxiliary, beacon, or Earth stations
• B. Earth, repeater, or space stations
• C. Beacon, repeater, or space stations
• D. Repeater, auxiliary, or space stations

T0C06

10. Which of the following is an acceptable method to determine whether your station complies with FCC RF exposure regulations?

• A. By calculation based on computer modeling
• B. By measurement of field strength using calibrated equipment
• C. All these choices are correct
• D. By calculation based on FCC OET Bulletin 65

T6A12

11. What type of switch is represented by component 3 in figure T-2?

• A. Single-pole single-throw
• B. Single-pole double-throw
• C. Double-pole single-throw
• D. Double-pole double-throw

T6B07

12. What causes a light-emitting diode (LED) to emit light?

• A. Inductively-coupled RF signal
• B. Reverse current
• C. Capacitively-coupled RF signal
• D. Forward current

T4B08

13. What is the advantage of having multiple receive bandwidth choices on a multimode transceiver?

• A. Permits noise or interference reduction by selecting a bandwidth matching the mode
• B. Increases the number of frequencies that can be stored in memory
• C. Permits monitoring several modes at once by selecting a separate filter for each mode
• D. Increases the amount of offset between receive and transmit frequencies

T6D04

14. Which of the following displays an electrical quantity as a numeric value?

• A. Meter
• B. Relay
• C. Potentiometer
• D. Transistor

T5C03

15. What describes the ability to store energy in a magnetic field?

• A. Resistance
• B. Admittance
• C. Capacitance
• D. Inductance

T7D03

16. When configured to measure current, how is a multimeter connected to a component?

• A. In quadrature
• B. In phase
• C. In series
• D. In parallel

T3B05

17. What is the relationship between wavelength and frequency?

• A. Wavelength and frequency are unrelated
• B. Wavelength gets longer as frequency increases
• C. Wavelength gets shorter as frequency increases
• D. Wavelength and frequency increase as path length increases

T1B05

18. How may amateurs use the 219 to 220 MHz segment of 1.25 meter band?

• A. Spread spectrum only
• B. Emergency traffic only
• C. Fast-scan television only
• D. Fixed digital message forwarding systems only

T8D01

19. Which of the following is a digital communications mode?

• A. FT8
• B. Packet radio
• C. IEEE 802.11
• D. All these choices are correct

T1C02

20. Who may select a desired call sign under the vanity call sign rules?

• A. Only a licensed amateur who has been licensed continuously for more than 10 years
• B. Any licensed amateur
• C. Only a licensed amateur with an Amateur Extra Class license
• D. Only a licensed amateur with a General or Amateur Extra Class license

T3C04

21. Which of the following types of propagation is most commonly associated with occasional strong signals on the 10, 6, and 2 meter bands from beyond the radio horizon?

• A. Backscatter
• B. Sporadic E
• C. Gray-line propagation
• D. D region absorption

T1E09

22. Which of the following are required for remote control operation?

• A. All these choices are correct
• B. The control operator must be at the control point
• C. The control operator must indirectly manipulate the controls
• D. A control operator is required at all times

T5A08

23. Which of the following is a good electrical insulator?

• A. Copper
• B. Mercury
• C. Aluminum
• D. Glass

T9A08

24. What is the approximate length, in inches, of a quarter-wavelength vertical antenna for 146 MHz?

• A. 112
• B. 12
• C. 19
• D. 50

T5D12

25. What is the voltage across a 10-ohm resistor if a current of 2 amperes flows through it?

• A. 20 volts
• B. 12 volts
• C. 0.2 volts
• D. 8 volts

T2C02

26. Which of the following are typical duties of a Net Control Station?

• A. All these choices are correct
• B. Ensure that all stations checking into the net are properly licensed for operation on the net frequency
• C. Choose the regular net meeting time and frequency
• D. Call the net to order and direct communications between stations checking in

T8C04

27. Which of the following is good procedure when contacting another station in a contest?

• A. Contact the station twice to be sure that you are in his log
• B. Sign only the last two letters of your call if there are many other stations calling
• C. All these choices are correct
• D. Send only the minimum information needed for proper identification and the contest exchange

T2A01

28. What is a common repeater frequency offset in the 2 meter band?

• A. Plus or minus 5 MHz
• B. Plus or minus 1 MHz
• C. Plus or minus 600 kHz
• D. Plus or minus 500 kHz

T8B07

29. What is Doppler shift in reference to satellite communications?

• A. An observed change in signal frequency caused by relative motion between the satellite and Earth station
• B. A mode where the satellite receives signals on one band and transmits on another
• C. A change in the satellite orbit
• D. A special digital communications mode for some satellites

T3A11

30. Which region of the atmosphere can refract or bend HF and VHF radio waves?

• A. The mesosphere
• B. The stratosphere
• C. The ionosphere
• D. The troposphere

T1F11

31. Which of the following is a requirement for the issuance of a club station license grant?

• A. The club must have at least four members
• B. The trustee must have an Amateur Extra Class operator license grant
• C. The club must be registered with the American Radio Relay League
• D. All these choices are correct

T0B07

32. Which of the following is an important safety rule to remember when using a crank-up tower?

• A. This type of tower must never be grounded
• B. This type of tower must never be painted
• C. All these choices are correct
• D. This type of tower must not be climbed unless it is retracted, or mechanical safety locking devices have been installed

T1A08

33. Which of the following entities recommends transmit/receive channels and other parameters for auxiliary and repeater stations?

• A. FCC Regional Field Office
• B. Volunteer Frequency Coordinator recognized by local amateurs
• C. Frequency Spectrum Manager appointed by the FCC
• D. International Telecommunication Union

T4A05

34. Where should an RF power meter be installed?

• A. In the feed line, between the transmitter and antenna
• B. At the power supply output
• C. In the power supply cable, as close as possible to the radio
• D. In parallel with the push-to-talk line and the antenna

T7C01

35. What is the primary purpose of a dummy load?

• A. To improve the efficiency of an antenna
• B. To prevent over-modulation of a transmitter
• C. To prevent transmitting signals over the air when making tests
• D. To improve the signal-to-noise ratio of a receiver