Practice Exam

T2A12

1. What should you do before calling CQ?

• A. Make sure you are authorized to use that frequency
• B. Ask if the frequency is in use
• C. All these choices are correct
• D. Listen first to be sure that no one else is using the frequency

T7C07

2. What happens to power lost in a feed line?

• A. It is converted into heat
• B. It distorts the signal
• C. It is radiated as harmonics
• D. It increases the SWR

T0C12

3. How does RF radiation differ from ionizing radiation (radioactivity)?

• A. RF radiation can only be detected with an RF dosimeter
• B. RF radiation is perfectly safe
• C. RF radiation is limited in range to a few feet
• D. RF radiation does not have sufficient energy to cause chemical changes in cells and damage DNA

T5D07

4. What is the current in a circuit with an applied voltage of 120 volts and a resistance of 80 ohms?

• A. 0.667 amperes
• B. 200 amperes
• C. 1.5 amperes
• D. 9600 amperes

T4B02

5. Which of the following can be used to enter a transceiver's operating frequency?

• A. The keypad or VFO knob
• B. All these choices are correct
• C. The Automatic Frequency Control
• D. The CTCSS or DTMF encoder

T0B11

6. Which of the following establishes grounding requirements for an amateur radio tower or antenna?

• A. FCC Part 97 rules
• B. Local electrical codes
• C. UL recommended practices
• D. FAA tower lighting regulations

T1A02

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

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

T1C03

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

T6C12

9. Which of the following is accurately represented in electrical schematics?

• A. Physical appearance of components
• B. Wire lengths
• C. Component connections
• D. All these choices are correct

T1E01

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

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

T7D06

11. Which of the following can damage a multimeter?

• A. Attempting to measure voltage when using the resistance setting
• B. Failing to connect one of the probes to ground
• C. Attempting to measure resistance using the voltage setting
• D. Not allowing it to warm up properly

T7B01

12. 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

T9B02

13. What is the most common impedance of coaxial cables used in amateur radio?

• A. 12 ohms
• B. 600 ohms
• C. 8 ohms
• D. 50 ohms

T8A08

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

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

T9A12

15. What is an advantage of a 5/8 wavelength whip antenna for VHF or UHF mobile service?

• A. It has 10 times the power gain of a 1/4 wavelength whip
• B. It eliminates distortion caused by reflected signals
• C. It has more gain than a 1/4-wavelength antenna
• D. It radiates at a very high angle

T8D05

16. Which of the following is an application of APRS?

• A. Providing real-time tactical digital communications in conjunction with a map showing the locations of stations
• B. Showing automatically the number of packets transmitted via PACTOR during a specific time interval
• C. Providing voice over internet connection between repeaters
• D. Providing information on the number of stations signed into a repeater

T8B06

17. Which of the following are inputs to a satellite tracking program?

• A. The Keplerian elements
• B. The satellite transmitted power
• C. All these choices are correct
• D. The last observed time of zero Doppler shift

T0A05

18. Why should a 5-ampere fuse never be replaced with a 20-ampere fuse?

• A. Excessive current could cause a fire
• B. The larger fuse would be likely to blow because it is rated for higher current
• C. The power supply ripple would greatly increase
• D. All these choices are correct

T5A03

19. What is the name for the flow of electrons in an electric circuit?

• A. Resistance
• B. Current
• C. Capacitance
• D. Voltage

T2B10

20. Which Q signal indicates that you are receiving interference from other stations?

• A. QRM
• B. QRN
• C. QSB
• D. QTH

T8C10

21. What is required before using the EchoLink system?

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

T5B07

22. Which is equal to 3.525 MHz?

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

T6A01

23. What electrical component opposes the flow of current in a DC circuit?

• A. Inductor
• B. Resistor
• C. Inverter
• D. Transformer

T6B10

24. Which of the following can provide power gain?

• A. Reactor
• B. Transistor
• C. Transformer
• D. Resistor

T1B03

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

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

T1F09

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

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

T5C09

27. How much power is delivered by a voltage of 13.8 volts DC and a current of 10 amperes?

• A. 3.8 watts
• B. 23.8 watts
• C. 0.7 watts
• D. 138 watts

T1D04

28. Under what conditions is an amateur station authorized to transmit music using a phone emission?

• A. When incidental to an authorized retransmission of manned spacecraft communications
• B. When the music produces no spurious emissions
• C. When transmissions are limited to less than three minutes per hour
• D. When the music is transmitted above 1280 MHz

T3B02

29. What property of a radio wave defines its polarization?

• A. The orientation of the electric field
• B. The ratio of the energy in the magnetic field to the energy in the electric field
• C. The ratio of the velocity to the wavelength
• D. The orientation of the magnetic field

T3A07

30. What weather condition might decrease range at microwave frequencies?

• A. Precipitation
• B. High winds
• C. Low barometric pressure
• D. Colder temperatures

T6D09

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

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

T2C04

32. What is RACES?

• A. An international radio experimentation society
• B. An emergency organization combining amateur radio and citizens band operators and frequencies
• C. An FCC part 97 amateur radio service for civil defense communications during national emergencies
• D. A radio contest held in a short period, sometimes called a "sprint"

T4A05

33. Where should an RF power meter be installed?

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

T7A06

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

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

T3C03

35. What is a characteristic of VHF signals received via auroral backscatter?

• A. They are distorted and signal strength varies considerably
• B. They are often received from 10,000 miles or more
• C. They occur only during winter nighttime hours
• D. They are generally strongest when your antenna is aimed west