Practice Exam

T4A03

1. Why are short, heavy-gauge wires used for a transceiver's DC power connection?

• A. To provide a good counterpoise for the antenna
• B. All these choices are correct
• C. To avoid RF interference
• D. To minimize voltage drop when transmitting

T1D03

2. When is it permissible to transmit messages encoded to obscure their meaning?

• A. Only when transmitting control commands to space stations or radio control craft
• B. Only when transmitting certain approved digital codes
• C. Only during contests
• D. Never

T3C04

3. Which of the following types of propagation is most commonly associated with occasional strong signals on the 10, 6, and 2 meter bands from beyond the radio horizon?

• A. Gray-line propagation
• B. Backscatter
• C. Sporadic E
• D. D region absorption

T1E05

4. What is an amateur station's control point?

• A. The location of the station's transmitting apparatus
• B. The location of the station's transmitting antenna
• C. The mailing address of the station licensee
• D. The location at which the control operator function is performed

T9A04

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

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

T8A04

6. Which type of modulation is commonly used for VHF and UHF voice repeaters?

• A. PSK
• B. AM
• C. FM or PM
• D. SSB

T8C09

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

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

T0A07

8. Where should a lightning arrester be installed in a coaxial feed line?

• A. At the antenna feed point
• B. At the output connector of a transceiver
• C. At the ac power service panel
• D. On a grounded panel near where feed lines enter the building

T1A06

9. What is the FCC Part 97 definition of a beacon?

• A. An amateur station transmitting communications for the purposes of observing propagation or related experimental activities
• B. A bulletin sent by the FCC to announce a national emergency
• C. A government transmitter marking the amateur radio band edges
• D. A continuous transmission of weather information authorized in the amateur bands by the National Weather Service

T7A06

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

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

T1F05

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

T1B04

12. Which amateur band includes 146.52 MHz?

• A. 20 meters
• B. 6 meters
• C. 70 centimeters
• D. 2 meters

T0C02

13. At which of the following frequencies does maximum permissible exposure have the lowest value?

• A. 1296 MHz
• B. 3.5 MHz
• C. 440 MHz
• D. 50 MHz

T4B05

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

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

T7D02

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

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

T6B05

16. What type of transistor has a gate, drain, and source?

• A. Field-effect
• B. Varistor
• C. Bipolar junction
• D. Tesla-effect

T5B03

17. Which is equal to one kilovolt?

• A. One million volts
• B. One hundred volts
• C. One thousand volts
• D. One one-thousandth of a volt

T5C05

18. What is the unit of impedance?

• A. The volt
• B. The ohm
• C. The ampere
• D. The coulomb

T8B03

19. Which of the following are provided by satellite tracking programs?

• A. Maps showing the real-time position of the satellite track over Earth
• B. All these choices are correct
• C. The time, azimuth, and elevation of the start, maximum altitude, and end of a pass
• D. The apparent frequency of the satellite transmission, including effects of Doppler shift

T1C01

20. For which license classes are new licenses currently available from the FCC?

• A. Technician, Technician Plus, General, Amateur Extra
• B. Novice, Technician Plus, General, Advanced
• C. Technician, General, Amateur Extra
• D. Novice, Technician, General, Amateur Extra

T5D14

21. In which type of circuit is voltage the same across all components?

• A. Parallel
• B. Branch
• C. Series
• D. Resonant

T9B01

22. What is a benefit of low SWR?

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

T6D10

23. What is the function of component 2 in figure T-1?

• A. Give off light when current flows through it
• B. Supply electrical energy
• C. Control the flow of current
• D. Convert electrical energy into radio waves

T3A01

24. Why do VHF signal strengths sometimes vary greatly when the antenna is moved only a few feet?

• A. VHF ionospheric propagation is very sensitive to path length
• B. The signal path encounters different concentrations of water vapor
• C. All these choices are correct
• D. Multipath propagation cancels or reinforces signals

T6A05

25. What type of electrical component consists of conductive surfaces separated by an insulator?

• A. Resistor
• B. Oscillator
• C. Potentiometer
• D. Capacitor

T2A07

26. What is meant by "repeater offset"?

• A. The number of simultaneous transmit frequencies used by a repeater
• B. The repeater station identification is done on a separate frequency
• C. The repeater has a time delay to prevent interference
• D. The difference between a repeater's transmit and receive frequencies

T0B04

27. 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

T7B07

28. Which of the following can reduce overload of a VHF transceiver by a nearby commercial FM station?

• A. Installing bypass capacitors on the microphone cable
• B. Using double-shielded coaxial cable
• C. Installing a band-reject filter
• D. Installing an RF preamplifier

T2C01

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

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

T7C04

30. What reading on an SWR meter indicates a perfect impedance match between the antenna and the feed line?

• A. 1:1
• B. Zero
• C. 50:50
• D. Full Scale

T5A01

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

• A. Amperes
• B. Ohms
• C. Watts
• D. Volts

T6C03

32. What is component 2 in figure T-1?

• A. Connector
• B. Transistor
• C. Resistor
• D. Indicator lamp

T3B10

33. What frequency range is referred to as HF?

• A. 300 to 3000 MHz
• B. 30 to 300 MHz
• C. 3 to 30 MHz
• D. 300 to 3000 kHz

T8D03

34. What kind of data can be transmitted by APRS?

• A. GPS position data
• B. Weather data
• C. Text messages
• D. All these choices are correct

T2B07

35. How can you join a digital repeater's "talkgroup"?

• A. Sign your call after the courtesy tone
• B. Join the repeater owner's club
• C. Register your radio with the local FCC office
• D. Program your radio with the group's ID or code