Practice Exam

T3B05

1. What is the relationship between wavelength and frequency?

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

T1C05

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

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

T1D07

3. What types of amateur stations can automatically retransmit the signals of other amateur stations?

• A. Auxiliary, beacon, or Earth stations
• B. Repeater, auxiliary, or space stations
• C. Earth, repeater, or space stations
• D. Beacon, repeater, or space stations

T8C09

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

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

T2C09

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

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

T0B04

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

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

T9B01

7. What is a benefit of low SWR?

• A. All these choices are correct
• B. Reduced television interference
• C. Reduced signal loss
• D. Less antenna wear

T1A11

8. When is willful interference to other amateur radio stations permitted?

• A. To stop another amateur station that is breaking the FCC rules
• B. At no time
• C. At any time, stations in the Amateur Radio Service are not protected from willful interference
• D. When making short test transmissions

T5C06

9. What does the abbreviation "RF" mean?

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

T8B06

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

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

T1B10

11. Where may SSB phone be used in amateur bands above 50 MHz?

• A. In at least some segment of all these bands
• B. Only in sub-bands allocated to General class or higher licensees
• C. On any band if the power is limited to 25 watts
• D. Only on repeaters

T8D05

12. 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

T9A04

13. What is a disadvantage of the short, flexible antenna supplied with most handheld radio transceivers, compared to a full-sized quarter-wave antenna?

• A. All these choices are correct
• B. It transmits only circularly polarized signals
• C. It is mechanically fragile
• D. It has low efficiency

T6B10

14. Which of the following can provide power gain?

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

T3C08

15. What causes tropospheric ducting?

• A. Updrafts from hurricanes and tornadoes
• B. Discharges of lightning during electrical storms
• C. Sunspots and solar flares
• D. Temperature inversions in the atmosphere

T5D08

16. What is the current through a 100-ohm resistor connected across 200 volts?

• A. 100 amperes
• B. 0.5 amperes
• C. 20,000 amperes
• D. 2 amperes

T7D07

17. Which of the following measurements are made using a multimeter?

• A. Impedance and reactance
• B. Voltage and resistance
• C. All these choices are correct
• D. Signal strength and noise

T7C01

18. What is the primary purpose of a dummy load?

• A. To prevent transmitting signals over the air when making tests
• B. To improve the efficiency of an antenna
• C. To improve the signal-to-noise ratio of a receiver
• D. To prevent over-modulation of a transmitter

T5A09

19. Which of the following describes alternating current?

• A. Current that alternates between positive and negative directions
• B. All these answers are correct
• C. Current that alternates between a positive direction and zero
• D. Current that alternates between a negative direction and zero

T7A05

20. What is the name of a circuit that generates a signal at a specific frequency?

• A. Phase modulator
• B. Oscillator
• C. Reactance modulator
• D. Low-pass filter

T0C01

21. What type of radiation are radio signals?

• A. Non-ionizing radiation
• B. Ionizing radiation
• C. Gamma radiation
• D. Alpha radiation

T4A09

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

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

T3A04

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

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

T8A09

24. What is the approximate bandwidth of a VHF repeater FM voice signal?

• A. Less than 500 Hz
• B. About 150 kHz
• C. Between 10 and 15 kHz
• D. Between 50 and 125 kHz

T6D05

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

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

T7B06

26. Which of the following actions should you take if a neighbor tells you that your station's transmissions are interfering with their radio or TV reception?

• A. Immediately turn off your transmitter and contact the nearest FCC office for assistance
• B. Make sure that your station is functioning properly and that it does not cause interference to your own radio or television when it is tuned to the same channel
• C. Install a harmonic doubler on the output of your transmitter and tune it until the interference is eliminated
• D. All these choices are correct

T5B01

27. How many milliamperes is 1.5 amperes?

• A. 15 milliamperes
• B. 150 milliamperes
• C. 1500 milliamperes
• D. 15,000 milliamperes

T2B12

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

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

T4B08

29. What is the advantage of having multiple receive bandwidth choices on a multimode transceiver?

• A. Increases the amount of offset between receive and transmit frequencies
• B. Permits monitoring several modes at once by selecting a separate filter for each mode
• C. Permits noise or interference reduction by selecting a bandwidth matching the mode
• D. Increases the number of frequencies that can be stored in memory

T6A08

30. What is the function of an SPDT switch?

• A. A single circuit is opened or closed
• B. Two circuits are opened or closed
• C. A single circuit is switched between one of two other circuits
• D. Two circuits are each switched between one of two other circuits

T1F11

31. Which of the following is a requirement for the issuance of a club station license grant?

• A. The club must be registered with the American Radio Relay League
• B. The club must have at least four members
• C. The trustee must have an Amateur Extra Class operator license grant
• D. All these choices are correct

T1E02

32. Who may be the control operator of a station communicating through an amateur satellite or space station?

• A. Any amateur allowed to transmit on the satellite uplink frequency
• B. Only an Amateur Extra Class operator who is also an AMSAT member
• C. Only an Amateur Extra Class operator
• D. A General class or higher licensee with a satellite operator certification

T0A10

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

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

T2A04

34. What is an appropriate way to call another station on a repeater if you know the other station's call sign?

• A. Wait for the station to call CQ, then answer
• B. Say "CQ" three times, then the other station's call sign
• C. Say the station's call sign, then identify with your call sign
• D. Say "break, break," then say the station's call sign

T6C11

35. What is component 4 in figure T-3?

• A. Ground
• B. Transmitter
• C. Dummy load
• D. Antenna