Practice Exam

T8B07

1. 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 change in the satellite orbit
• C. A special digital communications mode for some satellites
• D. A mode where the satellite receives signals on one band and transmits on another

T8C06

2. How is over the air access to IRLP nodes accomplished?

• A. By using DTMF signals
• B. By using CTCSS tone codes
• C. By obtaining a password that is sent via voice to the node
• D. By entering the proper internet password

T2A10

3. What is a band plan, beyond the privileges established by the FCC?

• A. A voluntary guideline for using different modes or activities within an amateur band
• B. A list of operating schedules
• C. A plan devised by a club to indicate frequency band usage
• D. A list of available net frequencies

T6A02

4. What type of component is often used as an adjustable volume control?

• A. Potentiometer
• B. Power resistor
• C. Fixed resistor
• D. Transformer

T6D09

5. What is the name of a device that combines several semiconductors and other components into one package?

• A. Multi-pole relay
• B. Integrated circuit
• C. Transformer
• D. Transducer

T3B04

6. What is the velocity of a radio wave traveling through free space?

• A. Speed inversely proportional to its wavelength
• B. Speed of light
• C. Speed of sound
• D. Speed that increases as the frequency increases

T7B02

7. What would cause a broadcast AM or FM radio to receive an amateur radio transmission unintentionally?

• A. The microphone gain of the transmitter is turned up too high
• B. The deviation of an FM transmitter is set too low
• C. The receiver is unable to reject strong signals outside the AM or FM band
• D. The audio amplifier of the transmitter is overloaded

T5D02

8. What formula is used to calculate voltage in a circuit?

• A. E= I x R
• B. E= I + R
• C. E = I - R
• D. E= I / R

T7D07

9. Which of the following measurements are made using a multimeter?

• A. Signal strength and noise
• B. Impedance and reactance
• C. All these choices are correct
• D. Voltage and resistance

T1F03

10. When are you required to transmit your assigned call sign?

• A. At the beginning of each contact, and every 10 minutes thereafter
• B. At least once during each transmission
• C. At least every 15 minutes during and at the end of a communication
• D. At least every 10 minutes during and at the end of a communication

T5A08

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

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

T5B09

12. Which decibel value most closely represents a power increase from 5 watts to 10 watts?

• A. 5 dB
• B. 10 dB
• C. 2 dB
• D. 3 dB

T9A01

13. What is a beam antenna?

• A. An antenna that reverses the phase of received signals
• B. An omnidirectional antenna invented by Clarence Beam
• C. An antenna that concentrates signals in one direction
• D. An antenna built from aluminum I-beams

T7A06

14. What device converts the RF input and output of a transceiver to another band?

• A. High-pass filter
• B. Phase converter
• C. Transverter
• D. Low-pass filter

T3C10

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

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

T4A03

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

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

T1D07

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

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

T6C07

18. What is component 8 in figure T-2?

• A. Light emitting diode
• B. Inductor
• C. Resistor
• D. Regulator IC

T0C08

19. Which of the following actions can reduce exposure to RF radiation?

• A. Relocate antennas
• B. Increase the duty cycle
• C. Relocate the transmitter
• D. All these choices are correct

T0A04

20. What is the purpose of a fuse in an electrical circuit?

• A. To prevent power supply ripple from damaging a component
• B. To limit current to prevent shocks
• C. All these choices are correct
• D. To remove power in case of overload

T1A02

21. Which agency regulates and enforces the rules for the Amateur Radio Service in the United States?

• A. The FCC
• B. All these choices are correct
• C. Homeland Security
• D. FEMA

T7C08

22. Which instrument can be used to determine SWR?

• A. Directional wattmeter
• B. Ohmmeter
• C. Iambic pentameter
• D. Voltmeter

T4B03

23. How is squelch adjusted so that a weak FM signal can be heard?

• A. Turn up the audio level until it overcomes the squelch threshold
• B. Enable squelch enhancement
• C. Turn on the anti-squelch function
• D. Set the squelch threshold so that receiver output audio is on all the time

T9B12

24. What is standing wave ratio (SWR)?

• A. An indication of the quality of your station's ground connection
• B. The ratio of amplifier power output to input
• C. The transmitter efficiency ratio
• D. A measure of how well a load is matched to a transmission line

T0B08

25. Which is a proper grounding method for a tower?

• A. A single four-foot ground rod, driven into the ground no more than 12 inches from the base
• B. Separate eight-foot ground rods for each tower leg, bonded to the tower and each other
• C. A ferrite-core RF choke connected between the tower and ground
• D. A connection between the tower base and a cold water pipe

T8A05

26. Which of the following types of signal has the narrowest bandwidth?

• A. SSB voice
• B. CW
• C. Slow-scan TV
• D. FM voice

T3A01

27. Why do VHF signal strengths sometimes vary greatly when the antenna is moved only a few feet?

• A. VHF ionospheric propagation is very sensitive to path length
• B. The signal path encounters different concentrations of water vapor
• C. All these choices are correct
• D. Multipath propagation cancels or reinforces signals

T5C02

28. What is the unit of capacitance?

• A. The volt
• B. The ohm
• C. The henry
• D. The farad

T2C06

29. What is the Amateur Radio Emergency Service (ARES)?

• A. A training program that certifies amateur operators for membership in the Radio Amateur Civil Emergency Service
• B. A group of licensed amateurs who have voluntarily registered their qualifications and equipment for communications duty in the public service
• C. A training program that provides licensing courses for those interested in obtaining an amateur license to use during emergencies
• D. A group of licensed amateurs who are members of the military and who voluntarily agreed to provide message handling services in the case of an emergency

T8D08

30. Which of the following is included in packet radio transmissions?

• A. A check sum that permits error detection
• B. Automatic repeat request in case of error
• C. A header that contains the call sign of the station to which the information is being sent
• D. All these choices are correct

T1E09

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

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

T2B05

32. What would cause your FM transmission audio to be distorted on voice peaks?

• A. Your transmit power is too high
• B. You are talking too loudly
• C. Your repeater offset is inverted
• D. You need to talk louder

T6B04

33. Which of the following components can consist of three regions of semiconductor material?

• A. Transistor
• B. Alternator
• C. Triode
• D. Pentagrid converter

T1C03

34. What types of international communications are an FCC-licensed amateur radio station permitted to make?

• A. Only communications incidental to contest exchanges; all other communications are prohibited
• B. Communications incidental to conducting business or remarks of a personal nature
• C. Communications incidental to the purposes of the Amateur Radio Service and remarks of a personal character
• D. Any communications that would be permitted by an international broadcast station

T1B03

35. Which frequency is in the 6 meter amateur band?

• A. 52.525 MHz
• B. 28.50 MHz
• C. 49.00 MHz
• D. 222.15 MHz