Practice Exam

T8D11

1. What is an ARQ transmission system?

• A. A method of compressing data using autonomous reiterative Q codes prior to final encoding
• B. A system used to encrypt command signals to an amateur radio satellite
• C. An error correction method in which the receiving station detects errors and sends a request for retransmission
• D. A special transmission format limited to video signals

T6D09

2. What is the name of a device that combines several semiconductors and other components into one package?

• A. Transformer
• B. Transducer
• C. Integrated circuit
• D. Multi-pole relay

T1F08

3. What is the definition of third party communications?

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

T8C05

4. What is a grid locator?

• A. A letter-number designator assigned to an azimuth and elevation
• B. A letter-number designator assigned to a geographic location
• C. An instrument for radio direction finding
• D. An instrument for neutralizing a final amplifier

T5C04

5. What is the unit of inductance?

• A. The henry
• B. The farad
• C. The coulomb
• D. The ohm

T2C09

6. Are amateur station control operators ever permitted to operate outside the frequency privileges of their license class?

• A. Yes, but only in situations involving the immediate safety of human life or protection of property
• B. No
• C. Yes, but only when part of a FEMA emergency plan
• D. Yes, but only when part of a RACES emergency plan

T0A04

7. What is the purpose of a fuse in an electrical circuit?

• A. To limit current to prevent shocks
• B. All these choices are correct
• C. To prevent power supply ripple from damaging a component
• D. To remove power in case of overload

T7B02

8. What would cause a broadcast AM or FM radio to receive an amateur radio transmission unintentionally?

• A. The receiver is unable to reject strong signals outside the AM or FM band
• B. The deviation of an FM transmitter is set too low
• C. The audio amplifier of the transmitter is overloaded
• D. The microphone gain of the transmitter is turned up too high

T6C12

9. Which of the following is accurately represented in electrical schematics?

• A. Physical appearance of components
• B. Component connections
• C. All these choices are correct
• D. Wire lengths

T3B08

10. What frequency range is referred to as VHF?

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

T6B03

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

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

T5B05

12. Which is equal to 500 milliwatts?

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

T6A11

13. Which of the following battery chemistries is not rechargeable?

• A. Lithium-ion
• B. Lead-acid
• C. Carbon-zinc
• D. Nickel-cadmium

T7A09

14. What is the function of the SSB/CW-FM switch on a VHF power amplifier?

• A. Change the frequency range of the amplifier to operate in the proper segment of the band
• B. Change the mode of the transmitted signal
• C. Reduce the received signal noise
• D. Set the amplifier for proper operation in the selected mode

T4B02

15. Which of the following can be used to enter a transceiver's operating frequency?

• A. The CTCSS or DTMF encoder
• B. The Automatic Frequency Control
• C. All these choices are correct
• D. The keypad or VFO knob

T2B07

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

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

T1E02

17. Who may be the control operator of a station communicating through an amateur satellite or space station?

• A. Only an Amateur Extra Class operator
• B. A General class or higher licensee with a satellite operator certification
• C. Any amateur allowed to transmit on the satellite uplink frequency
• D. Only an Amateur Extra Class operator who is also an AMSAT member

T1C02

18. Who may select a desired call sign under the vanity call sign rules?

• A. Only a licensed amateur with a General or Amateur Extra Class license
• B. Any licensed amateur
• C. Only a licensed amateur who has been licensed continuously for more than 10 years
• D. Only a licensed amateur with an Amateur Extra Class license

T1D07

19. What types of amateur stations can automatically retransmit the signals of other amateur stations?

• A. Beacon, repeater, or space stations
• B. Earth, repeater, or space stations
• C. Repeater, auxiliary, or space stations
• D. Auxiliary, beacon, or Earth stations

T4A12

20. What is an electronic keyer?

• A. A device for voice activated switching from receive to transmit
• B. A device that assists in manual sending of Morse code
• C. A device for switching antennas from transmit to receive
• D. An interlock to prevent unauthorized use of a radio

T0B07

21. Which of the following is an important safety rule to remember when using a crank-up tower?

• A. All these choices are correct
• B. This type of tower must not be climbed unless it is retracted, or mechanical safety locking devices have been installed
• C. This type of tower must never be grounded
• D. This type of tower must never be painted

T8B11

22. Who may receive telemetry from a space station?

• A. A licensed radio amateur who has been certified by the protocol developer
• B. A licensed radio amateur who has registered for an access code from AMSAT
• C. Anyone
• D. A licensed radio amateur with a transmitter equipped for interrogating the satellite

T5A02

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

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

T1B05

24. How may amateurs use the 219 to 220 MHz segment of 1.25 meter band?

• A. Spread spectrum only
• B. Fixed digital message forwarding systems only
• C. Fast-scan television only
• D. Emergency traffic only

T1A10

25. What is the Radio Amateur Civil Emergency Service (RACES)?

• A. A radio service using amateur stations for emergency management or civil defense communications
• B. An emergency service using amateur operators certified by a civil defense organization as being enrolled in that organization
• C. All these choices are correct
• D. A radio service using amateur frequencies for emergency management or civil defense communications

T9A06

26. Which of the following types of antenna offers the greatest gain?

• A. Isotropic
• B. J pole
• C. 5/8 wave vertical
• D. Yagi

T7C03

27. What does a dummy load consist of?

• A. A low-voltage power supply and a DC relay
• B. A non-inductive resistor mounted on a heat sink
• C. A high-gain amplifier and a TR switch
• D. A 50-ohm reactance used to terminate a transmission line

T7D10

28. What reading indicates that an ohmmeter is connected across a large, discharged capacitor?

• A. Alternating between open and short circuit
• B. Steady full-scale reading
• C. Increasing resistance with time
• D. Decreasing resistance with time

T0C01

29. What type of radiation are radio signals?

• A. Gamma radiation
• B. Ionizing radiation
• C. Alpha radiation
• D. Non-ionizing radiation

T8A11

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

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

T3C08

31. What causes tropospheric ducting?

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

T2A02

32. What is the national calling frequency for FM simplex operations in the 2 meter band?

• A. 432.100 MHz
• B. 146.520 MHz
• C. 145.000 MHz
• D. 446.000 MHz

T3A12

33. What is the effect of fog and rain on signals in the 10 meter and 6 meter bands?

• A. Absorption
• B. There is little effect
• C. Deflection
• D. Range increase

T5D07

34. What is the current in a circuit with an applied voltage of 120 volts and a resistance of 80 ohms?

• A. 200 amperes
• B. 9600 amperes
• C. 0.667 amperes
• D. 1.5 amperes

T9B01

35. 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