Practice Exam

T1D11

1. When may an amateur station transmit without identifying on the air?

• A. When transmitting signals to control model craft
• B. When the transmissions are unmodulated
• C. When the transmitted power level is below 1 watt
• D. When the transmissions are of a brief nature to make station adjustments

T2C03

2. What technique is used to ensure that voice messages containing unusual words are received correctly?

• A. All these choices are correct
• B. Send the words by voice and Morse code
• C. Spell the words using a standard phonetic alphabet
• D. Speak very loudly into the microphone

T6D05

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

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

T7A08

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

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

T8D01

5. Which of the following is a digital communications mode?

• A. All these choices are correct
• B. IEEE 802.11
• C. Packet radio
• D. FT8

T0C04

6. What factors affect the RF exposure of people near an amateur station antenna?

• A. Distance from the antenna to a person
• B. Frequency and power level of the RF field
• C. All these choices are correct
• D. Radiation pattern of the antenna

T1A05

7. What proves that the FCC has issued an operator/primary license grant?

• A. A printed copy of the certificate of successful completion of examination
• B. All these choices are correct
• C. An email notification from the NCVEC granting the license
• D. The license appears in the FCC ULS database

T0A05

8. Why should a 5-ampere fuse never be replaced with a 20-ampere fuse?

• A. The larger fuse would be likely to blow because it is rated for higher current
• B. All these choices are correct
• C. The power supply ripple would greatly increase
• D. Excessive current could cause a fire

T0B08

9. Which is a proper grounding method for a tower?

• A. Separate eight-foot ground rods for each tower leg, bonded to the tower and each other
• B. A ferrite-core RF choke connected between the tower and ground
• C. A single four-foot ground rod, driven into the ground no more than 12 inches from the base
• D. A connection between the tower base and a cold water pipe

T1E11

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

T2A08

11. What is the meaning of the procedural signal "CQ"?

• A. Only the called station should transmit
• B. Call on the quarter hour
• C. Calling any station
• D. Test transmission, no reply expected

T4A06

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

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

T9B01

13. What is a benefit of low SWR?

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

T9A02

14. Which of the following describes a type of antenna loading?

• A. Electrically lengthening by inserting inductors in radiating elements
• B. Inserting a resistor in the radiating portion of the antenna to make it resonant
• C. Strengthening the radiating elements of a beam antenna to better resist wind damage
• D. Installing a spring in the base of a mobile vertical antenna to make it more flexible

T8A11

15. What is the approximate bandwidth required to transmit a CW signal?

• A. 1000 Hz
• B. 2.4 kHz
• C. 15 kHz
• D. 150 Hz

T1C09

16. What is the grace period for renewal if an amateur license expires?

• A. Two years
• B. Ten years
• C. Five years
• D. Three years

T6A03

17. What electrical parameter is controlled by a potentiometer?

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

T7C05

18. Why do most solid-state transmitters reduce output power as SWR increases beyond a certain level?

• A. To protect the output amplifier transistors
• B. To comply with FCC rules on spectral purity
• C. To lower the SWR on the transmission line
• D. Because power supplies cannot supply enough current at high SWR

T5C13

19. What is the abbreviation for kilohertz?

• A. kHz
• B. khz
• C. khZ
• D. KHZ

T4B10

20. Which of the following receiver filter bandwidths provides the best signal-to-noise ratio for SSB reception?

• A. 500 Hz
• B. 2400 Hz
• C. 5000 Hz
• D. 1000 Hz

T1B11

21. What is the maximum peak envelope power output for Technician class operators in their HF band segments?

• A. 10 watts
• B. 50 watts
• C. 200 watts
• D. 100 watts

T2B12

22. 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

T5D10

23. What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows through it?

• A. 0.25 volts
• B. 2.5 volts
• C. 1 volt
• D. 1.5 volts

T1F10

24. Who is accountable if a repeater inadvertently retransmits communications that violate the FCC rules?

• A. Both the originating station and the repeater owner
• B. The owner of the repeater
• C. The control operator of the repeater
• D. The control operator of the originating station

T8C10

25. What is required before using the EchoLink system?

• A. Purchase a license to use the EchoLink software
• B. Complete the required EchoLink training
• C. Register your call sign and provide proof of license
• D. All these choices are correct

T6B08

26. What does the abbreviation FET stand for?

• A. Free Electron Transmitter
• B. Field Effect Transistor
• C. Frequency Emission Transmitter
• D. Fast Electron Transistor

T3A01

27. 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. Multipath propagation cancels or reinforces signals
• C. The signal path encounters different concentrations of water vapor
• D. All these choices are correct

T8B01

28. What telemetry information is typically transmitted by satellite beacons?

• A. The signal strength of received signals
• B. All these choices are correct
• C. Time of day accurate to plus or minus 1/10 second
• D. Health and status of the satellite

T3C08

29. What causes tropospheric ducting?

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

T3B08

30. What frequency range is referred to as VHF?

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

T6C03

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

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

T7B01

32. What can you do if you are told your FM handheld or mobile transceiver is over-deviating?

• A. Let the transceiver cool off
• B. Talk farther away from the microphone
• C. Change to a higher power level
• D. Talk louder into the microphone

T5B10

33. Which decibel value most closely represents a power decrease from 12 watts to 3 watts?

• A. -3 dB
• B. -1 dB
• C. -9 dB
• D. -6 dB

T7D11

34. Which of the following precautions should be taken when measuring in-circuit resistance with an ohmmeter?

• A. Ensure that the circuit is operating at the correct frequency
• B. Ensure that the circuit is not powered
• C. Ensure that the applied voltages are correct
• D. Ensure that the circuit is grounded

T5A02

35. Electrical power is measured in which of the following units?

• A. Amperes
• B. Watts
• C. Volts
• D. Watt-hours