Practice Exam

T7C09

1. Which of the following causes failure of coaxial cables?

• A. Rapid fluctuation in transmitter output power
• B. Moisture contamination
• C. Operation at 100% duty cycle for an extended period
• D. Solder flux contamination

T8C07

2. What is Voice Over Internet Protocol (VoIP)?

• A. A technique for measuring the modulation quality of a transmitter using remote sites monitored via the internet
• B. A method of delivering voice communications over the internet using digital techniques
• C. A set of rules specifying how to identify your station when linked over the internet to another station
• D. A technique employed to "spot" DX stations via the internet

T3B03

3. What are the two components of a radio wave?

• A. Ionizing and non-ionizing radiation
• B. Voltage and current
• C. Electric and magnetic fields
• D. Impedance and reactance

T5B06

4. Which is equal to 3000 milliamperes?

• A. 3,000,000 amperes
• B. 0.3 amperes
• C. 0.003 amperes
• D. 3 amperes

T7D03

5. When configured to measure current, how is a multimeter connected to a component?

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

T8A05

6. Which of the following types of signal has the narrowest bandwidth?

• A. FM voice
• B. Slow-scan TV
• C. SSB voice
• D. CW

T7B04

7. 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. Preamplifier
• C. Low-pass filter
• D. Band-pass filter

T4A08

8. Which of the following conductors is preferred for bonding at RF?

• A. Flat copper strap
• B. Steel wire
• C. Twisted-pair cable
• D. Copper braid removed from coaxial cable

T3C07

9. What band is best suited for communicating via meteor scatter?

• A. 33 centimeters
• B. 6 meters
• C. 2 meters
• D. 70 centimeters

T2B07

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

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

T1E11

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

T1A04

12. How many operator/primary station license grants may be held by any one person?

• A. No more than two
• B. One for each permanent station location from which the person plans to operate
• C. One
• D. One for each band on which the person plans to operate

T3A07

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

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

T1C07

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

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

T8B01

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

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

T2A11

16. What term describes an amateur station that is transmitting and receiving on the same frequency?

• A. Simplex
• B. Multiplex
• C. Full duplex
• D. Diplex

T9A09

17. What is the approximate length, in inches, of a half-wavelength 6 meter dipole antenna?

• A. 236
• B. 112
• C. 6
• D. 50

T6D05

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

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

T1B07

19. 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

T8D01

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

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

T1F01

21. When must the station and its records be available for FCC inspection?

• A. Only when presented with a valid warrant by an FCC official or government agent
• B. At any time after written notification by the FCC of such inspection
• C. At any time ten days after notification by the FCC of such an inspection
• D. At any time upon request by an FCC representative

T0C09

22. How can you make sure your station stays in compliance with RF safety regulations?

• A. By making sure your antennas have low SWR
• B. By informing the FCC of any changes made in your station
• C. All these choices are correct
• D. By re-evaluating the station whenever an item in the transmitter or antenna system is changed

T6A06

23. What type of electrical component stores energy in a magnetic field?

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

T7A01

24. Which term describes the ability of a receiver to detect the presence of a signal?

• A. Selectivity
• B. Total Harmonic Distortion
• C. Sensitivity
• D. Linearity

T4B11

25. Which of the following must be programmed into a D-STAR digital transceiver before transmitting?

• A. Your call sign
• B. Your output power
• C. All these choices are correct
• D. The codec type being used

T5D05

26. What is the resistance of a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?

• A. 0.125 ohms
• B. 18 ohms
• C. 13.5 ohms
• D. 8 ohms

T0B01

27. Which of the following is good practice when installing ground wires on a tower for lightning protection?

• A. All these choices are correct
• B. Put a drip loop in the ground connection to prevent water damage to the ground system
• C. Make sure all ground wire bends are right angles
• D. Ensure that connections are short and direct

T6B06

28. How is the cathode lead of a semiconductor diode often marked on the package?

• A. With the letter C
• B. With a stripe
• C. With the letter K
• D. With the word "cathode"

T1D05

29. When may amateur radio operators use their stations to notify other amateurs of the availability of equipment for sale or trade?

• A. When selling amateur radio equipment and not on a regular basis
• B. When the equipment is not the personal property of either the station licensee, or the control operator, or their close relatives
• C. Never
• D. When no profit is made on the sale

T9B05

30. What happens as the frequency of a signal in coaxial cable is increased?

• A. The characteristic impedance increases
• B. The loss increases
• C. The loss decreases
• D. The characteristic impedance decreases

T2C02

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

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

T0A01

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

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

T5A02

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

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

T5C01

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

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

T6C03

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

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