Practice Exam

T3A05

1. When using a directional antenna, how might your station be able to communicate with a distant repeater if buildings or obstructions are blocking the direct line of sight path?

• A. Change from vertical to horizontal polarization
• B. Try to find a path that reflects signals to the repeater
• C. Increase the antenna SWR
• D. Try the long path

T7B09

2. What should be the first step to resolve non-fiber optic cable TV interference caused by your amateur radio transmission?

• A. Be sure all TV feed line coaxial connectors are installed properly
• B. Add a high-pass filter to the TV antenna input
• C. Add a preamplifier to the TV antenna input
• D. Add a low-pass filter to the TV antenna input

T2C11

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

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

T6A01

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

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

T4A07

5. Which of the following connections is made between a computer and a transceiver to use computer software when operating digital modes?

• A. Computer "line out" to transceiver speaker connector
• B. Computer "line in" to transceiver speaker connector
• C. Computer "line out" to transceiver push-to-talk
• D. Computer "line in" to transceiver push-to-talk

T5C07

6. What is the abbreviation for megahertz?

• A. Mhz
• B. MHz
• C. mh
• D. MH

T1E11

7. Who does the FCC presume to be the control operator of an amateur station, unless documentation to the contrary is in the station records?

• A. The third party participant
• B. The station custodian
• C. The station licensee
• D. The person operating the station equipment

T6B08

8. What does the abbreviation FET stand for?

• A. Fast Electron Transistor
• B. Frequency Emission Transmitter
• C. Free Electron Transmitter
• D. Field Effect Transistor

T1D02

9. Under which of the following circumstances are one-way transmissions by an amateur station prohibited?

• A. International Morse Code Practice
• B. Telecommand or transmissions of telemetry
• C. Broadcasting
• D. In all circumstances

T5D03

10. What formula is used to calculate resistance in a circuit?

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

T9A05

11. Which of the following increases the resonant frequency of a dipole antenna?

• A. Shortening it
• B. Lengthening it
• C. Adding capacitive loading to the ends of the radiating wires
• D. Inserting coils in series with radiating wires

T3B10

12. What frequency range is referred to as HF?

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

T7A06

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

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

T5A06

14. What is the unit of frequency?

• A. Farad
• B. Hertz
• C. Tesla
• D. Henry

T0B09

15. Why should you avoid attaching an antenna to a utility pole?

• A. The antenna will not work properly because of induced voltages
• B. The 60 Hz radiations from the feed line may increase the SWR
• C. The antenna could contact high-voltage power lines
• D. All these choices are correct

T7D08

16. Which of the following types of solder should not be used for radio and electronic applications?

• A. Tin-copper solder
• B. Acid-core solder
• C. Rosin-core solder
• D. Lead-tin solder

T2B09

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

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

T6D05

18. What type of circuit controls the amount of voltage from a power supply?

• A. Filter
• B. Phase inverter
• C. Regulator
• D. Oscillator

T8C05

19. What is a grid locator?

• A. An instrument for radio direction finding
• B. An instrument for neutralizing a final amplifier
• C. A letter-number designator assigned to an azimuth and elevation
• D. A letter-number designator assigned to a geographic location

T1B03

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

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

T0C09

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

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

T8D04

22. What type of transmission is indicated by the term "NTSC?"

• A. An analog fast-scan color TV signal
• B. A Normal Transmission mode in Static Circuit
• C. A special mode for satellite uplink
• D. A frame compression scheme for TV signals

T1A11

23. 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. At no time
• C. When making short test transmissions
• D. To stop another amateur station that is breaking the FCC rules

T4B11

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

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

T8A11

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

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

T1F09

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

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

T0A10

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

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

T8B02

28. What is the impact of using excessive effective radiated power on a satellite uplink?

• A. Possibility of commanding the satellite to an improper mode
• B. Possibility of rebooting the satellite control computer
• C. Overloading the satellite batteries
• D. Blocking access by other users

T6C03

29. What is component 2 in figure T-1?

• A. Transistor
• B. Resistor
• C. Connector
• D. Indicator lamp

T9B08

30. Which of the following is a source of loss in coaxial feed line?

• A. All these choices are correct
• B. High SWR
• C. Water intrusion into coaxial connectors
• D. Multiple connectors in the line

T5B12

31. Which is equal to 28400 kHz?

• A. 28.400 MHz
• B. 28.400 kHz
• C. 2.800 MHz
• D. 284.00 MHz

T7C09

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

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

T2A07

33. What is meant by "repeater offset"?

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

T1C03

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

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

T3C11

35. Why is the radio horizon for VHF and UHF signals more distant than the visual horizon?

• A. Radio signals move somewhat faster than the speed of light
• B. Radio waves are not blocked by dust particles
• C. The atmosphere refracts radio waves slightly
• D. Radio waves are blocked by dust particles