Practice Exam

T6B01

1. Which is true about forward voltage drop in a diode?

• A. It indicates that the diode is defective
• B. It has no impact on the voltage delivered to the load
• C. It is proportional to peak inverse voltage
• D. It is lower in some diode types than in others

T9A07

2. What is a disadvantage of using a handheld VHF transceiver with a flexible antenna inside a vehicle?

• A. The SWR might decrease, decreasing the signal strength
• B. All these choices are correct
• C. The bandwidth of the antenna will decrease, increasing SWR
• D. Signal strength is reduced due to the shielding effect of the vehicle

T4A11

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

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

T5D01

4. What formula is used to calculate current in a circuit?

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

T8A06

5. Which sideband is normally used for 10 meter HF, VHF, and UHF single-sideband communications?

• A. Upper sideband
• B. Inverted sideband
• C. Suppressed sideband
• D. Lower sideband

T2A05

6. How should you respond to a station calling CQ?

• A. Transmit "CQ" followed by the other station's call sign
• B. Transmit a signal report followed by your call sign
• C. Transmit your call sign followed by the other station's call sign
• D. Transmit the other station's call sign followed by your call sign

T3A04

7. What happens when antennas at opposite ends of a VHF or UHF line of sight radio link are not using the same polarization?

• A. The modulation sidebands might become inverted
• B. Nothing significant will happen
• C. Received signal strength is reduced
• D. Signals have an echo effect

T4B01

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

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

T3C10

9. Which of the following bands may provide long-distance communications via the ionosphere's F region during the peak of the sunspot cycle?

• A. 70 centimeters and 1.25 meters
• B. 23 centimeters
• C. 6 and 10 meters
• D. All these choices are correct

T5A04

10. What are the units of electrical resistance?

• A. Mhos
• B. Ohms
• C. Coulombs
• D. Siemens

T0A09

11. What should be done to all external ground rods or earth connections?

• A. Tune them for resonance on the lowest frequency of operation
• B. Keep them as far apart as possible
• C. Bond them together with heavy wire or conductive strap
• D. Waterproof them with silicone caulk or electrical tape

T6C08

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

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

T7B03

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

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

T2B08

14. Which of the following applies when two stations transmitting on the same frequency interfere with each other?

• A. Both stations should choose another frequency to avoid conflict
• B. The stations should negotiate continued use of the frequency
• C. Interference is inevitable, so no action is required
• D. Use subaudible tones so both stations can share the frequency

T0C09

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

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

T1E04

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

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

T1C05

17. Which of the following is a valid Technician class call sign format?

• A. All these choices are correct
• B. W1XX
• C. KF1XXX
• D. KA1X

T8D04

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

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

T6A03

19. What electrical parameter is controlled by a potentiometer?

• A. Resistance
• B. Field strength
• C. Inductance
• D. Capacitance

T1D10

20. How does the FCC define broadcasting for the Amateur Radio Service?

• A. Any transmission made by the licensed station
• B. Transmission of messages directed only to amateur operators
• C. Transmissions intended for reception by the general public
• D. Two-way transmissions by amateur stations

T8B04

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

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

T5C12

22. What is impedance?

• A. The inverse of resistance
• B. The opposition to AC current flow
• C. The Q or Quality Factor of a component
• D. The power handling capability of a component

T7D02

23. How is a voltmeter connected to a component to measure applied voltage?

• A. In quadrature
• B. In phase
• C. In parallel
• D. In series

T1A08

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

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

T1B09

25. Why should you not set your transmit frequency to be exactly at the edge of an amateur band or sub-band?

• A. All these choices are correct
• B. To allow for calibration error in the transmitter frequency display
• C. So that modulation sidebands do not extend beyond the band edge
• D. To allow for transmitter frequency drift

T1F03

26. When are you required to transmit your assigned call sign?

• A. At least every 15 minutes during and at the end of a communication
• B. At the beginning of each contact, and every 10 minutes thereafter
• C. At least once during each transmission
• D. At least every 10 minutes during and at the end of a communication

T5B13

27. Which is equal to 2425 MHz?

• A. 24.25 GHz
• B. 2.425 GHz
• C. 2425 GHz
• D. 0.002425 GHz

T0B01

28. Which of the following is good practice when installing ground wires on a tower for lightning protection?

• A. Ensure that connections are short and direct
• B. Make sure all ground wire bends are right angles
• C. All these choices are correct
• D. Put a drip loop in the ground connection to prevent water damage to the ground system

T6D01

29. Which of the following devices or circuits changes an alternating current into a varying direct current signal?

• A. Reflector
• B. Transformer
• C. Rectifier
• D. Amplifier

T2C02

30. Which of the following are typical duties of a Net Control Station?

• A. All these choices are correct
• B. Ensure that all stations checking into the net are properly licensed for operation on the net frequency
• C. Call the net to order and direct communications between stations checking in
• D. Choose the regular net meeting time and frequency

T9B06

31. Which of the following RF connector types is most suitable for frequencies above 400 MHz?

• A. RS-213
• B. UHF (PL-259/SO-239)
• C. Type N
• D. DB-25

T7A06

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

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

T7C06

33. What does an SWR reading of 4:1 indicate?

• A. Loss of -4 dB
• B. Gain of +4 dB
• C. Impedance mismatch
• D. Good impedance match

T3B10

34. 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

T8C09

35. Which of the following protocols enables an amateur station to transmit through a repeater without using a radio to initiate the transmission?

• A. D-STAR
• B. IRLP
• C. EchoLink
• D. DMR