Practice Exam

T6D07

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

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

T9A12

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

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

T4B05

3. What does the scanning function of an FM transceiver do?

• A. Checks incoming signal deviation
• B. Tunes through a range of frequencies to check for activity
• C. Prevents interference to nearby repeaters
• D. Checks for messages left on a digital bulletin board

T8D07

4. Which of the following describes DMR?

• A. An automatic computer logging technique for hands-off logging when communicating while operating a vehicle
• B. An automatic position tracking mode for FM mobiles communicating through repeaters
• C. A technique for time-multiplexing two digital voice signals on a single 12.5 kHz repeater channel
• D. A digital technique for transmitting on two repeater inputs simultaneously for automatic error correction

T2A12

5. What should you do before calling CQ?

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

T3B05

6. What is the relationship between wavelength and frequency?

• A. Wavelength gets shorter as frequency increases
• B. Wavelength and frequency increase as path length increases
• C. Wavelength and frequency are unrelated
• D. Wavelength gets longer as frequency increases

T1A07

7. What is the FCC Part 97 definition of a space station?

• A. A manned satellite orbiting Earth
• B. An amateur station located more than 50 km above Earth's surface
• C. An amateur station using amateur radio satellites for relay of signals
• D. Any satellite orbiting Earth

T1B05

8. How may amateurs use the 219 to 220 MHz segment of 1.25 meter band?

• A. Emergency traffic only
• B. Fixed digital message forwarding systems only
• C. Spread spectrum only
• D. Fast-scan television only

T2C07

9. Which of the following is standard practice when you participate in a net?

• A. Unless you are reporting an emergency, transmit only when directed by the net control station
• B. All these choices are correct
• C. Record the time of each of your transmissions
• D. When first responding to the net control station, transmit your call sign, name, and address as in the FCC database

T7D01

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

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

T1E11

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

T2B12

12. What is the purpose of the color code used on DMR repeater systems?

• A. Identifies the codec used
• B. Defines the minimum signal level required for access
• C. Defines the frequency pair to use
• D. Must match the repeater color code for access

T7C08

13. Which instrument can be used to determine SWR?

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

T9B08

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

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

T3A05

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

T1D09

16. When may amateur stations transmit information in support of broadcasting, program production, or news gathering, assuming no other means is available?

• A. Where noncommercial programming is gathered and supplied exclusively to the National Public Radio network
• B. When broadcasting communications to or from the space shuttle
• C. Never
• D. When such communications are directly related to the immediate safety of human life or protection of property

T1F09

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

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

T5D11

18. What is the voltage across a 10-ohm resistor if a current of 1 ampere flows through it?

• A. 10 volts
• B. 11 volts
• C. 1 volt
• D. 9 volts

T8A10

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

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

T5B05

20. Which is equal to 500 milliwatts?

• A. 5 watts
• B. 0.02 watts
• C. 50 watts
• D. 0.5 watts

T1C10

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

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

T0A12

22. Which of the following precautions should be taken when measuring high voltages with a voltmeter?

• A. Ensure that the voltmeter has very low impedance
• B. Ensure that the circuit is grounded through the voltmeter
• C. Ensure that the voltmeter and leads are rated for use at the voltages to be measured
• D. Ensure that the voltmeter is set to the correct frequency

T6B11

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

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

T3C03

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

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

T7B03

25. Which of the following can cause radio frequency interference?

• A. Harmonics
• B. Spurious emissions
• C. All these choices are correct
• D. Fundamental overload

T6A01

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

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

T0C11

27. What is the definition of duty cycle during the averaging time for RF exposure?

• A. The difference between the lowest power output and the highest power output of a transmitter
• B. The percentage of time that a transmitter is not transmitting
• C. The percentage of time that a transmitter is transmitting
• D. The difference between the PEP and average power output of a transmitter

T5C10

28. How much power is delivered by a voltage of 12 volts DC and a current of 2.5 amperes?

• A. 30 watts
• B. 14.5 watts
• C. 0.208 watts
• D. 4.8 watts

T7A04

29. Which term describes the ability of a receiver to discriminate between multiple signals?

• A. Sensitivity
• B. Harmonic distortion
• C. Selectivity
• D. Discrimination ratio

T8C08

30. What is the Internet Radio Linking Project (IRLP)?

• A. A technique to connect amateur radio systems, such as repeaters, via the internet using Voice Over Internet Protocol (VoIP)
• B. A system for providing access to websites via amateur radio
• C. A system for informing amateurs in real time of the frequency of active DX stations
• D. A technique for measuring signal strength of an amateur transmitter via the internet

T6C06

31. What is component 6 in figure T-2?

• A. Regulator IC
• B. Resistor
• C. Capacitor
• D. Transistor

T0B04

32. Which of the following is an important safety precaution to observe when putting up an antenna tower?

• A. Wear a ground strap connected to your wrist at all times
• B. Insulate the base of the tower to avoid lightning strikes
• C. Look for and stay clear of any overhead electrical wires
• D. All these choices are correct

T4A09

33. How can you determine the length of time that equipment can be powered from a battery?

• A. Multiply the watts per hour consumed by the equipment by the battery power rating
• B. Divide the battery ampere-hour rating by the average current draw of the equipment
• C. Divide the watt-hour rating of the battery by the peak power consumption of the equipment
• D. Multiply the square of the current rating of the battery by the input resistance of the equipment

T8B08

34. What is meant by the statement that a satellite is operating in U/V mode?

• A. The satellite uplink is in the 15 meter band and the downlink is in the 10 meter band
• B. The satellite operates using ultraviolet frequencies
• C. The satellite uplink is in the 70 centimeter band and the downlink is in the 2 meter band
• D. The satellite frequencies are usually variable

T5A05

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

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