Practice Exam

T1A08

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

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

T5D06

2. What is the resistance of a circuit that draws 4 amperes from a 12-volt source?

• A. 48 ohms
• B. 8 ohms
• C. 3 ohms
• D. 16 ohms

T1F05

3. What method of call sign identification is required for a station transmitting phone signals?

• A. Send the call sign followed by the indicator R
• B. Send the call sign using only a phone emission
• C. Send the call sign followed by the indicator RPT
• D. Send the call sign using a CW or phone emission

T0A11

4. What hazard exists in a power supply immediately after turning it off?

• A. Circulating currents in the dc filter
• B. Charge stored in filter capacitors
• C. Voltage transients from kickback diodes
• D. Leakage flux in the power transformer

T5C01

5. What describes the ability to store energy in an electric field?

• A. Capacitance
• B. Tolerance
• C. Inductance
• D. Resistance

T7D07

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

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

T4A06

7. What signals are used in a computer-radio interface for digital mode operation?

• A. Receive audio, transmit audio, and transmitter keying
• B. NMEA GPS location and DC power
• C. Antenna and RF power
• D. Receive and transmit mode, status, and location

T3B05

8. What is the relationship between wavelength and frequency?

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

T3C09

9. What is generally the best time for long-distance 10 meter band propagation via the F region?

• A. From dawn to shortly after sunset during periods of low sunspot activity
• B. From dawn to shortly after sunset during periods of high sunspot activity
• C. From shortly after sunset to dawn during periods of low sunspot activity
• D. From shortly after sunset to dawn during periods of high sunspot activity

T8A07

10. What is a characteristic of single sideband (SSB) compared to FM?

• A. SSB signals are less susceptible to interference
• B. SSB signals have narrower bandwidth
• C. All these choices are correct
• D. SSB signals are easier to tune in correctly

T7A08

11. Which of the following describes combining speech with an RF carrier signal?

• A. Oscillation
• B. Impedance matching
• C. Low-pass filtering
• D. Modulation

T6C04

12. What is component 3 in figure T-1?

• A. Ground symbol
• B. Transistor
• C. Resistor
• D. Lamp

T9A05

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

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

T8C02

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

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

T1E01

15. When may an amateur station transmit without a control operator?

• A. When the transmitting station is an auxiliary station
• B. When the station licensee is away and another licensed amateur is using the station
• C. Never
• D. When using automatic control, such as in the case of a repeater

T7B04

16. Which of the following could you use to cure distorted audio caused by RF current on the shield of a microphone cable?

• A. Ferrite choke
• B. Low-pass filter
• C. Preamplifier
• D. Band-pass filter

T2A03

17. What is a common repeater frequency offset in the 70 cm band?

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

T8D10

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

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

T3A07

19. What weather condition might decrease range at microwave frequencies?

• A. High winds
• B. Low barometric pressure
• C. Colder temperatures
• D. Precipitation

T4B03

20. How is squelch adjusted so that a weak FM signal can be heard?

• A. Enable squelch enhancement
• B. Set the squelch threshold so that receiver output audio is on all the time
• C. Turn up the audio level until it overcomes the squelch threshold
• D. Turn on the anti-squelch function

T6D02

21. What is a relay?

• A. An electrically-controlled switch
• B. A pass transistor
• C. A current controlled amplifier
• D. An inverting amplifier

T6A12

22. What type of switch is represented by component 3 in figure T-2?

• A. Double-pole double-throw
• B. Single-pole single-throw
• C. Double-pole single-throw
• D. Single-pole double-throw

T1B07

23. Which of the following VHF/UHF band segments are limited to CW only?

• A. 902.0 MHz to 902.1 MHz
• B. 219 MHz to 220 MHz and 420.0 MHz to 420.1 MHz
• C. All these choices are correct
• D. 50.0 MHz to 50.1 MHz and 144.0 MHz to 144.1 MHz

T9B11

24. Which of the following types of feed line has the lowest loss at VHF and UHF?

• A. 50-ohm flexible coax
• B. Multi-conductor unbalanced cable
• C. 75-ohm flexible coax
• D. Air-insulated hardline

T1D04

25. Under what conditions is an amateur station authorized to transmit music using a phone emission?

• A. When transmissions are limited to less than three minutes per hour
• B. When the music is transmitted above 1280 MHz
• C. When incidental to an authorized retransmission of manned spacecraft communications
• D. When the music produces no spurious emissions

T2C01

26. When do FCC rules NOT apply to the operation of an amateur station?

• A. When operating a RACES station
• B. FCC rules always apply
• C. When operating under special ARES rules
• D. When operating under special FEMA rules

T8B05

27. What is a satellite beacon?

• A. A reflective surface on the satellite
• B. The primary transmit antenna on the satellite
• C. A transmission from a satellite that contains status information
• D. An indicator light that shows where to point your antenna

T6B03

28. Which of these components can be used as an electronic switch?

• A. Thermistor
• B. Varistor
• C. Potentiometer
• D. Transistor

T2B08

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

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

T7C11

30. What is a disadvantage of air core coaxial cable when compared to foam or solid dielectric types?

• A. It requires special techniques to prevent moisture in the cable
• B. It cannot be used for VHF or UHF antennas
• C. It cannot be used at below freezing temperatures
• D. It has more loss per foot

T1C03

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

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

T0B04

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

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

T5A03

33. What is the name for the flow of electrons in an electric circuit?

• A. Resistance
• B. Current
• C. Capacitance
• D. Voltage

T0C09

34. 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 informing the FCC of any changes made in your station
• C. All these choices are correct
• D. By making sure your antennas have low SWR

T5B05

35. Which is equal to 500 milliwatts?

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