Practice Exam

T5C06

1. What does the abbreviation "RF" mean?

• A. Radio frequency signals of all types
• B. The real frequency transmitted as opposed to the apparent frequency
• C. The resonant frequency of a tuned circuit
• D. Reflective force in antenna transmission lines

T9B10

2. What is the electrical difference between RG-58 and RG-213 coaxial cable?

• A. RG-58 cable has two shields
• B. RG-58 cable can handle higher power levels
• C. There is no significant difference between the two types
• D. RG-213 cable has less loss at a given frequency

T0C10

3. Why is duty cycle one of the factors used to determine safe RF radiation exposure levels?

• A. It affects the peak exposure to radiation
• B. It affects the average exposure to radiation
• C. It takes into account the thermal effects of the final amplifier
• D. It takes into account the antenna feed line loss

T0B10

4. Which of the following is true when installing grounding conductors used for lightning protection?

• A. Use only non-insulated wire
• B. Common grounds must be avoided
• C. Wires must be carefully routed with precise right-angle bends
• D. Sharp bends must be avoided

T1E04

5. What determines the transmitting frequency privileges of an amateur station?

• A. The class of operator license held by the control operator
• B. The frequency authorized by the frequency coordinator
• C. The frequencies printed on the license grant
• D. The highest class of operator license held by anyone on the premises

T8B04

6. What mode of transmission is commonly used by amateur radio satellites?

• A. SSB
• B. All these choices are correct
• C. FM
• D. CW/data

T4B01

7. What is the effect of excessive microphone gain on SSB transmissions?

• A. Increased SWR
• B. All these choices are correct
• C. Distorted transmitted audio
• D. Frequency instability

T1F04

8. What language may you use for identification when operating in a phone sub-band?

• A. Any language recognized by the United Nations
• B. Any language recognized by the ITU
• C. English
• D. English, French, or Spanish

T5D09

9. What is the current through a 24-ohm resistor connected across 240 volts?

• A. 0.1 amperes
• B. 10 amperes
• C. 216 amperes
• D. 24,000 amperes

T2C09

10. Are amateur station control operators ever permitted to operate outside the frequency privileges of their license class?

• A. Yes, but only when part of a FEMA emergency plan
• B. No
• C. Yes, but only when part of a RACES emergency plan
• D. Yes, but only in situations involving the immediate safety of human life or protection of property

T4A07

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

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

T6A02

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

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

T8A10

13. What is the approximate bandwidth of AM fast-scan TV transmissions?

• A. About 3 MHz
• B. More than 10 MHz
• C. About 6 MHz
• D. About 1 MHz

T6B12

14. What are the names of the electrodes of a bipolar junction transistor?

• A. Pole one, pole two, output
• B. Signal, bias, power
• C. Emitter, base, collector
• D. Input, output, supply

T3C11

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

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

T1A08

16. Which of the following entities recommends transmit/receive channels and other parameters for auxiliary and repeater stations?

• A. International Telecommunication Union
• B. Frequency Spectrum Manager appointed by the FCC
• C. FCC Regional Field Office
• D. Volunteer Frequency Coordinator recognized by local amateurs

T7B11

17. What is a symptom of RF feedback in a transmitter or transceiver?

• A. Frequent blowing of power supply fuses
• B. Excessive SWR at the antenna connection
• C. The transmitter will not stay on the desired frequency
• D. Reports of garbled, distorted, or unintelligible voice transmissions

T9A09

18. What is the approximate length, in inches, of a half-wavelength 6 meter dipole antenna?

• A. 50
• B. 236
• C. 112
• D. 6

T1B03

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

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

T7C09

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

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

T6D07

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

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

T5B08

22. Which is equal to 1,000,000 picofarads?

• A. 0.001 microfarads
• B. 1000 microfarads
• C. 1 microfarad
• D. 1,000,000,000 microfarads

T1C10

23. How soon after passing the examination for your first amateur radio license may you transmit on the amateur radio bands?

• A. As soon as you receive your license in the mail from the FCC
• B. As soon as your operator/station license grant appears in the FCC's license database
• C. Immediately on receiving your Certificate of Successful Completion of Examination (CSCE)
• D. As soon as your operator/station license grant appears on the ARRL website

T2B04

24. Which of the following could be the reason you are unable to access a repeater whose output you can hear?

• A. Improper transceiver offset
• B. All these choices are correct
• C. You are using the wrong CTCSS tone
• D. You are using the wrong DCS code

T7D10

25. What reading indicates that an ohmmeter is connected across a large, discharged capacitor?

• A. Steady full-scale reading
• B. Alternating between open and short circuit
• C. Decreasing resistance with time
• D. Increasing resistance with time

T8C02

26. Which of these items would be useful for a hidden transmitter hunt?

• A. All these choices are correct
• B. A calibrated noise bridge
• C. A directional antenna
• D. Calibrated SWR meter

T1D05

27. When may amateur radio operators use their stations to notify other amateurs of the availability of equipment for sale or trade?

• A. Never
• B. When the equipment is not the personal property of either the station licensee, or the control operator, or their close relatives
• C. When no profit is made on the sale
• D. When selling amateur radio equipment and not on a regular basis

T6C08

28. What is component 9 in figure T-2?

• A. Variable resistor
• B. Variable transformer
• C. Variable capacitor
• D. Variable inductor

T0A03

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

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

T3B08

30. What frequency range is referred to as VHF?

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

T5A02

31. Electrical power is measured in which of the following units?

• A. Watt-hours
• B. Volts
• C. Amperes
• D. Watts

T2A01

32. What is a common repeater frequency offset in the 2 meter band?

• A. Plus or minus 500 kHz
• B. Plus or minus 1 MHz
• C. Plus or minus 600 kHz
• D. Plus or minus 5 MHz

T7A09

33. What is the function of the SSB/CW-FM switch on a VHF power amplifier?

• A. Change the frequency range of the amplifier to operate in the proper segment of the band
• B. Reduce the received signal noise
• C. Set the amplifier for proper operation in the selected mode
• D. Change the mode of the transmitted signal

T8D10

34. Which of the following operating activities is supported by digital mode software in the WSJT-X software suite?

• A. Weak signal propagation beacons
• B. All these choices are correct
• C. Meteor scatter
• D. Earth-Moon-Earth

T3A09

35. Which of the following results from the fact that signals propagated by the ionosphere are elliptically polarized?

• A. Digital modes are unusable
• B. Either vertically or horizontally polarized antennas may be used for transmission or reception
• C. Both the transmitting and receiving antennas must be of the same polarization
• D. FM voice is unusable