Practice Exam

T3B02

1. What property of a radio wave defines its polarization?

• A. The ratio of the velocity to the wavelength
• B. The ratio of the energy in the magnetic field to the energy in the electric field
• C. The orientation of the magnetic field
• D. The orientation of the electric field

T4A11

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

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

T6D02

3. What is a relay?

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

T1D02

4. Under which of the following circumstances are one-way transmissions by an amateur station prohibited?

• A. Telecommand or transmissions of telemetry
• B. In all circumstances
• C. Broadcasting
• D. International Morse Code Practice

T9A08

5. What is the approximate length, in inches, of a quarter-wavelength vertical antenna for 146 MHz?

• A. 12
• B. 19
• C. 112
• D. 50

T8C02

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

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

T0A01

7. Which of the following is a safety hazard of a 12-volt storage battery?

• A. Shorting the terminals can cause burns, fire, or an explosion
• B. RF emissions from a nearby transmitter can cause the electrolyte to emit poison gas
• C. All these choices are correct
• D. Touching both terminals with the hands can cause electrical shock

T4B05

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

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

T7B01

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

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

T2C02

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

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

T5A04

11. What are the units of electrical resistance?

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

T7A03

12. Which of the following is used to convert a signal from one frequency to another?

• A. Phase splitter
• B. Mixer
• C. Amplifier
• D. Inverter

T0B08

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

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

T8A09

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

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

T6B11

15. What is the term that describes a device's ability to amplify a signal?

• A. Gain
• B. On resistance
• C. Forward resistance
• D. Forward voltage drop

T9B12

16. What is standing wave ratio (SWR)?

• A. A measure of how well a load is matched to a transmission line
• B. The ratio of amplifier power output to input
• C. An indication of the quality of your station's ground connection
• D. The transmitter efficiency ratio

T5D09

17. What is the current through a 24-ohm resistor connected across 240 volts?

• A. 10 amperes
• B. 24,000 amperes
• C. 0.1 amperes
• D. 216 amperes

T6C05

18. What is component 4 in figure T-1?

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

T1F08

19. What is the definition of third party communications?

• A. Operation when the transmitting equipment is licensed to a person other than the control operator
• B. Temporary authorization for an unlicensed person to transmit on the amateur bands for technical experiments
• C. A message from a control operator to another amateur station control operator on behalf of another person
• D. Amateur radio communications where three stations are in communications with one another

T7C10

20. Why should the outer jacket of coaxial cable be resistant to ultraviolet light?

• A. Ultraviolet resistant jackets prevent harmonic radiation
• B. Ultraviolet and RF signals can mix, causing interference
• C. Ultraviolet light can increase losses in the cable's jacket
• D. Ultraviolet light can damage the jacket and allow water to enter the cable

T0C10

21. Why is duty cycle one of the factors used to determine safe RF radiation exposure levels?

• A. It takes into account the antenna feed line loss
• B. It affects the peak exposure to radiation
• C. It affects the average exposure to radiation
• D. It takes into account the thermal effects of the final amplifier

T7D09

22. What is the characteristic appearance of a cold tin-lead solder joint?

• A. Excessive solder
• B. A rough or lumpy surface
• C. Dark black spots
• D. A bright or shiny surface

T1B03

23. Which frequency is in the 6 meter amateur band?

• A. 52.525 MHz
• B. 28.50 MHz
• C. 222.15 MHz
• D. 49.00 MHz

T1C07

24. Which of the following can result in revocation of the station license or suspension of the operator license?

• A. Failure to provide and maintain a correct email address with the FCC
• B. Failure to have a copy of your license available at your station
• C. Failure to obtain FCC type acceptance prior to using a home-built transmitter
• D. Failure to inform the FCC of any changes in the amateur station following performance of an RF safety environmental evaluation

T5B12

25. Which is equal to 28400 kHz?

• A. 28.400 kHz
• B. 284.00 MHz
• C. 28.400 MHz
• D. 2.800 MHz

T2A05

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

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

T1A08

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

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

T2B11

28. Which Q signal indicates that you are changing frequency?

• A. QRZ
• B. QRU
• C. QSL
• D. QSY

T6A07

29. What electrical component is typically constructed as a coil of wire?

• A. Capacitor
• B. Inductor
• C. Diode
• D. Switch

T3C02

30. What is a characteristic of HF communication compared with communications on VHF and higher frequencies?

• A. HF antennas are generally smaller
• B. Long-distance ionospheric propagation is far more common on HF
• C. HF accommodates wider bandwidth signals
• D. There is less atmospheric interference (static) on HF

T3A06

31. What is the meaning of the term "picket fencing"?

• A. Rapid flutter on mobile signals due to multipath propagation
• B. Alternating transmissions during a net operation
• C. A type of ground system used with vertical antennas
• D. Local vs long-distance communications

T5C06

32. What does the abbreviation "RF" mean?

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

T8D02

33. What is a "talkgroup" on a DMR repeater?

• A. A protocol that increases the signal-to-noise ratio when multiple repeaters are linked together
• B. A net that meets at a specified time
• C. A way for groups of users to share a channel at different times without hearing other users on the channel
• D. A group of operators sharing common interests

T8B04

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

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

T1E09

35. Which of the following are required for remote control operation?

• A. A control operator is required at all times
• B. The control operator must be at the control point
• C. All these choices are correct
• D. The control operator must indirectly manipulate the controls