Practice Exam

T7C09

1. Which of the following causes failure of coaxial cables?

• A. Solder flux contamination
• B. Rapid fluctuation in transmitter output power
• C. Moisture contamination
• D. Operation at 100% duty cycle for an extended period

T1E01

2. When may an amateur station transmit without a control operator?

• A. When the station licensee is away and another licensed amateur is using the station
• B. When using automatic control, such as in the case of a repeater
• C. When the transmitting station is an auxiliary station
• D. Never

T2A07

3. What is meant by "repeater offset"?

• A. The repeater station identification is done on a separate frequency
• B. The number of simultaneous transmit frequencies used by a repeater
• C. The difference between a repeater's transmit and receive frequencies
• D. The repeater has a time delay to prevent interference

T1F08

4. What is the definition of third party communications?

• A. Operation when the transmitting equipment is licensed to a person other than the control operator
• B. Amateur radio communications where three stations are in communications with one another
• C. Temporary authorization for an unlicensed person to transmit on the amateur bands for technical experiments
• D. A message from a control operator to another amateur station control operator on behalf of another person

T6D07

5. Which of the following is commonly used as a visual indicator?

• A. LED
• B. FET
• C. Bipolar transistor
• D. Zener diode

T5D13

6. In which type of circuit is DC current the same through all components?

• A. Series
• B. Branch
• C. Parallel
• D. Resonant

T5A05

7. What is the electrical term for the force that causes electron flow?

• A. Capacitance
• B. Ampere-hours
• C. Voltage
• D. Inductance

T6A07

8. What electrical component is typically constructed as a coil of wire?

• A. Switch
• B. Capacitor
• C. Diode
• D. Inductor

T4A11

9. Where should the negative power return of a mobile transceiver be connected in a vehicle?

• A. At the 12 volt battery chassis ground
• B. Through the transceiver's mounting bracket
• C. At the antenna mount
• D. To any metal part of the vehicle

T4B10

10. Which of the following receiver filter bandwidths provides the best signal-to-noise ratio for SSB reception?

• A. 500 Hz
• B. 5000 Hz
• C. 2400 Hz
• D. 1000 Hz

T2C11

11. What is meant by "check" in a radiogram header?

• A. The call sign of the originating station
• B. The number of words or word equivalents in the text portion of the message
• C. A list of stations that have relayed the message
• D. A box on the message form that indicates that the message was received and/or relayed

T2B09

12. Why are simplex channels designated in the VHF/UHF band plans?

• A. So stations with simple transmitters can access the repeater without automated offset
• B. For working DX only
• C. So stations within range of each other can communicate without tying up a repeater
• D. For contest operation

T7A08

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

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

T1B01

14. Which of the following frequency ranges are available for phone operation by Technician licensees?

• A. 28.300 MHz to 28.500 MHz
• B. 28.500 MHz to 28.600 MHz
• C. 28.050 MHz to 28.150 MHz
• D. 28.100 MHz to 28.300 MHz

T3A11

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

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

T8A04

16. Which type of modulation is commonly used for VHF and UHF voice repeaters?

• A. PSK
• B. SSB
• C. AM
• D. FM or PM

T6C05

17. What is component 4 in figure T-1?

• A. Battery
• B. Resistor
• C. Transistor
• D. Ground symbol

T7B10

18. What might be a problem if you receive a report that your audio signal through an FM repeater is distorted or unintelligible?

• A. Your transmitter is slightly off frequency
• B. You are in a bad location
• C. All these choices are correct
• D. Your batteries are running low

T7D01

19. Which instrument would you use to measure electric potential?

• A. An ohmmeter
• B. A wavemeter
• C. An ammeter
• D. A voltmeter

T8D01

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

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

T8C10

21. What is required before using the EchoLink system?

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

T5C04

22. What is the unit of inductance?

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

T0C05

23. Why do exposure limits vary with frequency?

• A. Higher frequency RF fields are transient in nature
• B. Lower frequency RF fields have more energy than higher frequency fields
• C. Lower frequency RF fields do not penetrate the human body
• D. The human body absorbs more RF energy at some frequencies than at others

T6B11

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

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

T1A09

25. Who selects a Frequency Coordinator?

• A. The local chapter of the Office of National Council of Independent Frequency Coordinators
• B. Amateur operators in a local or regional area whose stations are eligible to be repeater or auxiliary stations
• C. FCC Regional Field Office
• D. The FCC Office of Spectrum Management and Coordination Policy

T0B05

26. What is the purpose of a safety wire through a turnbuckle used to tension guy lines?

• A. Secure the guy line if the turnbuckle breaks
• B. Provide a ground path for lightning strikes
• C. Prevent loosening of the turnbuckle from vibration
• D. Provide an ability to measure for proper tensioning

T0A10

27. What hazard is caused by charging or discharging a battery too quickly?

• A. Overheating or out-gassing
• B. Inverse memory effect
• C. Half-wave rectification
• D. Excess output ripple

T1C03

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

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

T3B10

29. What frequency range is referred to as HF?

• A. 3 to 30 MHz
• B. 30 to 300 MHz
• C. 300 to 3000 kHz
• D. 300 to 3000 MHz

T9B03

30. Why is coaxial cable the most common feed line for amateur radio antenna systems?

• A. It can handle more power than any other type of feed line
• B. It is less expensive than any other type of feed line
• C. It is easy to use and requires few special installation considerations
• D. It has less loss than any other type of feed line

T3C09

31. What is generally the best time for long-distance 10 meter band propagation via the F region?

• A. From shortly after sunset to dawn during periods of high sunspot activity
• B. From dawn to shortly after sunset during periods of low sunspot activity
• C. From shortly after sunset to dawn during periods of low sunspot activity
• D. From dawn to shortly after sunset during periods of high sunspot activity

T8B12

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

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

T1D01

33. With which countries are FCC-licensed amateur radio stations prohibited from exchanging communications?

• A. Any country banned from making such communications by the American Radio Relay League (ARRL)
• B. Any country banned from such communications by the International Amateur Radio Union (IARU)
• C. Any country whose administration has notified the American Radio Relay League (ARRL) that it objects to such communications
• D. Any country whose administration has notified the International Telecommunication Union (ITU) that it objects to such communications

T9A01

34. What is a beam antenna?

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

T5B07

35. Which is equal to 3.525 MHz?

• A. 0.003525 kHz
• B. 3525 kHz
• C. 3,525,000 kHz
• D. 35.25 kHz