Practice Exam

T5D08

1. What is the current through a 100-ohm resistor connected across 200 volts?

• A. 20,000 amperes
• B. 0.5 amperes
• C. 100 amperes
• D. 2 amperes

T8D01

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

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

T1B07

3. Which of the following VHF/UHF band segments are limited to CW only?

• A. 902.0 MHz to 902.1 MHz
• B. 219 MHz to 220 MHz and 420.0 MHz to 420.1 MHz
• C. All these choices are correct
• D. 50.0 MHz to 50.1 MHz and 144.0 MHz to 144.1 MHz

T8B12

4. Which of the following is a way to determine whether your satellite uplink power is neither too low nor too high?

• A. Check your signal strength report in the telemetry data
• B. All these choices are correct
• C. Listen for distortion on your downlink signal
• D. Your signal strength on the downlink should be about the same as the beacon

T6A10

5. Which of the following battery chemistries is rechargeable?

• A. Nickel-metal hydride
• B. All these choices are correct
• C. Lead-acid
• D. Lithium-ion

T3B03

6. What are the two components of a radio wave?

• A. Impedance and reactance
• B. Voltage and current
• C. Electric and magnetic fields
• D. Ionizing and non-ionizing radiation

T1C06

7. From which of the following locations may an FCC-licensed amateur station transmit?

• A. From within any country that belongs to the International Telecommunication Union
• B. From anywhere within International Telecommunication Union (ITU) Regions 2 and 3
• C. From within any country that is a member of the United Nations
• D. From any vessel or craft located in international waters and documented or registered in the United States

T4A03

8. Why are short, heavy-gauge wires used for a transceiver's DC power connection?

• A. All these choices are correct
• B. To minimize voltage drop when transmitting
• C. To avoid RF interference
• D. To provide a good counterpoise for the antenna

T3C10

9. Which of the following bands may provide long-distance communications via the ionosphere's F region during the peak of the sunspot cycle?

• A. All these choices are correct
• B. 70 centimeters and 1.25 meters
• C. 23 centimeters
• D. 6 and 10 meters

T2C03

10. What technique is used to ensure that voice messages containing unusual words are received correctly?

• A. Spell the words using a standard phonetic alphabet
• B. All these choices are correct
• C. Speak very loudly into the microphone
• D. Send the words by voice and Morse code

T7D03

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

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

T2B03

12. Which of the following describes a linked repeater network?

• A. Multiple repeaters with the same control operator
• B. A system of repeaters linked by APRS
• C. A single repeater with more than one receiver
• D. A network of repeaters in which signals received by one repeater are transmitted by all the repeaters in the network

T1D11

13. When may an amateur station transmit without identifying on the air?

• A. When transmitting signals to control model craft
• B. When the transmissions are of a brief nature to make station adjustments
• C. When the transmissions are unmodulated
• D. When the transmitted power level is below 1 watt

T9A03

14. Which of the following describes a simple dipole oriented parallel to Earth's surface?

• A. A ground-wave antenna
• B. A vertically polarized antenna
• C. A travelling-wave antenna
• D. A horizontally polarized antenna

T7C01

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

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

T1F09

16. What type of amateur station simultaneously retransmits the signal of another amateur station on a different channel or channels?

• A. Earth station
• B. Message forwarding station
• C. Beacon station
• D. Repeater station

T5B01

17. How many milliamperes is 1.5 amperes?

• A. 150 milliamperes
• B. 1500 milliamperes
• C. 15,000 milliamperes
• D. 15 milliamperes

T0B07

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

T5C10

19. How much power is delivered by a voltage of 12 volts DC and a current of 2.5 amperes?

• A. 0.208 watts
• B. 14.5 watts
• C. 4.8 watts
• D. 30 watts

T8C10

20. What is required before using the EchoLink system?

• A. Register your call sign and provide proof of license
• B. All these choices are correct
• C. Complete the required EchoLink training
• D. Purchase a license to use the EchoLink software

T6B11

21. What is the term that describes a device's ability to amplify a signal?

• A. Gain
• B. Forward resistance
• C. Forward voltage drop
• D. On resistance

T1A11

22. When is willful interference to other amateur radio stations permitted?

• A. At any time, stations in the Amateur Radio Service are not protected from willful interference
• B. To stop another amateur station that is breaking the FCC rules
• C. At no time
• D. When making short test transmissions

T0A03

23. In the United States, what circuit does black wire insulation indicate in a three-wire 120 V cable?

• A. Equipment ground
• B. Neutral
• C. Black insulation is never used
• D. Hot

T7B01

24. What can you do if you are told your FM handheld or mobile transceiver is over-deviating?

• A. Let the transceiver cool off
• B. Talk farther away from the microphone
• C. Change to a higher power level
• D. Talk louder into the microphone

T6C09

25. What is component 4 in figure T-2?

• A. Double-pole switch
• B. Transformer
• C. Variable inductor
• D. Potentiometer

T5A01

26. Electrical current is measured in which of the following units?

• A. Volts
• B. Watts
• C. Ohms
• D. Amperes

T7A08

27. Which of the following describes combining speech with an RF carrier signal?

• A. Oscillation
• B. Impedance matching
• C. Low-pass filtering
• D. Modulation

T2A08

28. What is the meaning of the procedural signal "CQ"?

• A. Test transmission, no reply expected
• B. Only the called station should transmit
• C. Call on the quarter hour
• D. Calling any station

T3A10

29. What effect does multi-path propagation have on data transmissions?

• A. Error rates are likely to increase
• B. No significant changes will occur if the signals are transmitted using FM
• C. Transmission rates must be decreased by a factor equal to the number of separate paths observed
• D. Transmission rates must be increased by a factor equal to the number of separate paths observed

T0C09

30. How can you make sure your station stays in compliance with RF safety regulations?

• A. By making sure your antennas have low SWR
• B. All these choices are correct
• C. By informing the FCC of any changes made in your station
• D. By re-evaluating the station whenever an item in the transmitter or antenna system is changed

T1E10

31. Which of the following is an example of remote control as defined in Part 97?

• A. All these choices are correct
• B. Operating the station over the internet
• C. Controlling a model aircraft, boat, or car by amateur radio
• D. Repeater operation

T4B11

32. Which of the following must be programmed into a D-STAR digital transceiver before transmitting?

• A. The codec type being used
• B. Your output power
• C. Your call sign
• D. All these choices are correct

T6D10

33. What is the function of component 2 in figure T-1?

• A. Supply electrical energy
• B. Control the flow of current
• C. Convert electrical energy into radio waves
• D. Give off light when current flows through it

T9B04

34. What is the major function of an antenna tuner (antenna coupler)?

• A. It automatically selects the proper antenna for the frequency band being used
• B. It matches the antenna system impedance to the transceiver's output impedance
• C. It allows an antenna to be used on both transmit and receive
• D. It helps a receiver automatically tune in weak stations

T8A11

35. What is the approximate bandwidth required to transmit a CW signal?

• A. 15 kHz
• B. 2.4 kHz
• C. 150 Hz
• D. 1000 Hz