Practice Exam

T9B09

1. What can cause erratic changes in SWR?

• A. Local thunderstorm
• B. Over-modulation
• C. Loose connection in the antenna or feed line
• D. Overload from a strong local station

T1F03

2. When are you required to transmit your assigned call sign?

• A. At least every 15 minutes during and at the end of a communication
• B. At least every 10 minutes during and at the end of a communication
• C. At least once during each transmission
• D. At the beginning of each contact, and every 10 minutes thereafter

T6D10

3. 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

T1D09

4. When may amateur stations transmit information in support of broadcasting, program production, or news gathering, assuming no other means is available?

• A. Never
• B. When such communications are directly related to the immediate safety of human life or protection of property
• C. When broadcasting communications to or from the space shuttle
• D. Where noncommercial programming is gathered and supplied exclusively to the National Public Radio network

T1B02

5. Which amateurs may contact the International Space Station (ISS) on VHF bands?

• A. Any amateur holding a Technician class or higher license
• B. Any amateur holding a General class or higher license who has applied for and received approval from NASA
• C. Any amateur holding a Technician class or higher license who has applied for and received approval from NASA
• D. Any amateur holding a General class or higher license

T4A08

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

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

T7A07

7. What is the function of a transceiver's PTT input?

• A. Switches transceiver from receive to transmit when grounded
• B. Input for a key used to send CW
• C. Input for a preamplifier tuning tone
• D. Provides a transmit tuning tone when grounded

T7C08

8. Which instrument can be used to determine SWR?

• A. Ohmmeter
• B. Iambic pentameter
• C. Voltmeter
• D. Directional wattmeter

T0C11

9. What is the definition of duty cycle during the averaging time for RF exposure?

• A. The difference between the lowest power output and the highest power output of a transmitter
• B. The percentage of time that a transmitter is transmitting
• C. The percentage of time that a transmitter is not transmitting
• D. The difference between the PEP and average power output of a transmitter

T6A03

10. What electrical parameter is controlled by a potentiometer?

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

T5C13

11. What is the abbreviation for kilohertz?

• A. kHz
• B. khz
• C. KHZ
• D. khZ

T2B04

12. Which of the following could be the reason you are unable to access a repeater whose output you can hear?

• A. You are using the wrong DCS code
• B. You are using the wrong CTCSS tone
• C. Improper transceiver offset
• D. All these choices are correct

T8B08

13. What is meant by the statement that a satellite is operating in U/V mode?

• A. The satellite uplink is in the 15 meter band and the downlink is in the 10 meter band
• B. The satellite uplink is in the 70 centimeter band and the downlink is in the 2 meter band
• C. The satellite frequencies are usually variable
• D. The satellite operates using ultraviolet frequencies

T8C05

14. What is a grid locator?

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

T0B01

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

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

T8A05

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

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

T9A07

17. What is a disadvantage of using a handheld VHF transceiver with a flexible antenna inside a vehicle?

• A. All these choices are correct
• B. The bandwidth of the antenna will decrease, increasing SWR
• C. The SWR might decrease, decreasing the signal strength
• D. Signal strength is reduced due to the shielding effect of the vehicle

T3A05

18. When using a directional antenna, how might your station be able to communicate with a distant repeater if buildings or obstructions are blocking the direct line of sight path?

• A. Increase the antenna SWR
• B. Change from vertical to horizontal polarization
• C. Try to find a path that reflects signals to the repeater
• D. Try the long path

T2C04

19. What is RACES?

• A. An emergency organization combining amateur radio and citizens band operators and frequencies
• B. A radio contest held in a short period, sometimes called a "sprint"
• C. An international radio experimentation society
• D. An FCC part 97 amateur radio service for civil defense communications during national emergencies

T1A03

20. What do the FCC rules state regarding the use of a phonetic alphabet for station identification in the Amateur Radio Service?

• A. It is required when in contact with foreign stations
• B. All these choices are correct
• C. It is required when transmitting emergency messages
• D. It is encouraged

T6C12

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

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

T6B10

22. Which of the following can provide power gain?

• A. Resistor
• B. Transformer
• C. Reactor
• D. Transistor

T0A01

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

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

T5A08

24. Which of the following is a good electrical insulator?

• A. Copper
• B. Mercury
• C. Aluminum
• D. Glass

T3C10

25. Which of the following bands may provide long-distance communications via the ionosphere's F region during the peak of the sunspot cycle?

• A. 23 centimeters
• B. 6 and 10 meters
• C. 70 centimeters and 1.25 meters
• D. All these choices are correct

T1C09

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

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

T7D02

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

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

T1E01

28. When may an amateur station transmit without a control operator?

• A. When using automatic control, such as in the case of a repeater
• B. When the station licensee is away and another licensed amateur is using the station
• C. Never
• D. When the transmitting station is an auxiliary station

T5B01

29. How many milliamperes is 1.5 amperes?

• A. 15,000 milliamperes
• B. 1500 milliamperes
• C. 15 milliamperes
• D. 150 milliamperes

T2A07

30. What is meant by "repeater offset"?

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

T7B05

31. How can fundamental overload of a non-amateur radio or TV receiver by an amateur signal be reduced or eliminated?

• A. Switch the transmitter from FM to SSB
• B. Switch the transmitter to a narrow-band mode
• C. Block the interfering signal with a filter on the amateur transmitter
• D. Block the amateur signal with a filter at the antenna input of the affected receiver

T4B09

32. How is a specific group of stations selected on a digital voice transceiver?

• A. By retrieving the frequencies from transceiver memory
• B. By entering the group's identification code
• C. By enabling the group's CTCSS tone
• D. By activating automatic identification

T3B07

33. In addition to frequency, which of the following is used to identify amateur radio bands?

• A. The approximate wavelength in meters
• B. Traditional letter/number designators
• C. Channel numbers
• D. All these choices are correct

T5D10

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

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

T8D12

35. Which of the following best describes an amateur radio mesh network?

• A. An internet linking protocol used to network repeaters
• B. A satellite communications network using modified commercial satellite TV hardware
• C. An amateur-radio based data network using commercial Wi-Fi equipment with modified firmware
• D. A wide-bandwidth digital voice mode employing DMR protocols