Practice Exam

T7C08

1. Which instrument can be used to determine SWR?

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

T0B03

2. Under what circumstances is it safe to climb a tower without a helper or observer?

• A. When the work being done is not more than 20 feet above the ground
• B. Never
• C. When no electrical work is being performed
• D. When no mechanical work is being performed

T8A08

3. What is the approximate bandwidth of a typical single sideband (SSB) voice signal?

• A. 1 kHz
• B. 3 kHz
• C. 6 kHz
• D. 15 kHz

T2C06

4. What is the Amateur Radio Emergency Service (ARES)?

• A. A training program that certifies amateur operators for membership in the Radio Amateur Civil Emergency Service
• B. A group of licensed amateurs who have voluntarily registered their qualifications and equipment for communications duty in the public service
• C. A group of licensed amateurs who are members of the military and who voluntarily agreed to provide message handling services in the case of an emergency
• D. A training program that provides licensing courses for those interested in obtaining an amateur license to use during emergencies

T3A12

5. What effect does fog or rain have on 10-meter and 6-meter band signals?

• A. Deflection
• B. Absorption
• C. Increased range
• D. Little effect

T5A04

6. What term describes the number of times per second that an alternating current makes a complete cycle?

• A. Pulse rate
• B. Frequency
• C. Wavelength
• D. Wave number

T1E06

7. When, other than during an emergency, may a Technician class licensee be the control operator of a station operating in an Amateur Extra Class band segment?

• A. As part of a multi-operator contest team
• B. When designated as the control operator by an Amateur Extra Class licensee
• C. When using a club station whose trustee holds an Amateur Extra Class license
• D. At no time

T6C10

8. What is component 3 in figure T-3?

• A. Variable capacitor
• B. Connector
• C. Variable inductor
• D. Meter

T6D11

9. Which of the following is a resonant or tuned circuit?

• A. A circuit designed to provide high-fidelity audio
• B. A resistor circuit used for reducing standing wave ratio
• C. A linear voltage regulator
• D. An inductor and a capacitor in series or parallel

T0A12

10. Which of the following precautions should be taken when measuring high voltages with a voltmeter?

• A. Ensure that the voltmeter is set to the correct frequency
• B. Ensure that the voltmeter and its leads are rated for use at the voltages being measured
• C. Ensure that the voltmeter has very low impedance
• D. Ensure that the circuit is grounded through the voltmeter

T9B03

11. Why is coaxial cable the most common feed line for amateur radio antenna systems?

• A. It is easy to use and requires few special installation considerations
• B. It is less expensive than any other type of feed line
• C. It can handle more power than any other type of feed line
• D. It has less loss than any other type of feed line

T4A03

12. Why are short, heavy-gauge wires used for a transceiver's DC power connection?

• A. To provide a close match to the power supply output impedance
• B. To minimize radiative losses in the power cable
• C. To avoid RF interference
• D. To minimize voltage drop when transmitting

T7B03

13. Which of the following can cause radio frequency interference?

• A. All these choices are correct
• B. Spurious emissions
• C. Fundamental overload
• D. Harmonics

T3C11

14. Why is the radio horizon for VHF and UHF signals more distant than the visual horizon?

• A. Radio signals move somewhat faster than the speed of light
• B. Radio waves are blocked by dust particles
• C. The atmosphere refracts radio waves slightly
• D. Radio waves are not blocked by dust particles

T1C02

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

• A. Any licensed amateur
• B. Only a licensed amateur with a General or Amateur Extra Class license
• 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

T2A04

16. What is an appropriate way to call another station on a repeater if you know the other station's call sign?

• A. Say the station's call sign, then identify with your call sign
• B. Say "CQ" three times, then the other station's call sign, followed by your call sign
• C. Wait for the station to call CQ, then answer with your call sign
• D. Say "break, break," then the other station's call sign, followed by your call sign

T6B03

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

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

T1D06

18. What, if any, are the restrictions concerning transmission of language that may be considered indecent or obscene?

• A. Any such language is prohibited
• B. The International Telecommunications Union (ITU) maintains a list of words that are not permitted to be used on amateur frequencies
• C. There is no such prohibition
• D. The FCC maintains a list of words that are not permitted to be used on amateur frequencies

T1A01

19. Which of the following is part of the Basis and Purpose of the Amateur Radio Service?

• A. All these choices are correct
• B. Advancing skills in the technical and communication phases of the radio art
• C. Providing communications for international contesting
• D. Providing personal radio communications for as many citizens as possible

T3B01

20. What is the relationship between the electric and magnetic fields of an electromagnetic wave?

• A. They travel at different speeds
• B. They revolve in opposite directions
• C. They are in parallel
• D. They are at right angles

T6A09

21. What type of switch is represented by component 3 in figure T-2?

• A. Single-pole double-throw
• B. Double-pole double-throw
• C. Single-pole single-throw
• D. Double-pole single-throw

T5D04

22. What is the resistance of a circuit in which a current of 3 amperes flows when connected to 90 volts?

• A. 30 ohms
• B. 3 ohms
• C. 270 ohms
• D. 1/30 ohm

T2B12

23. What is the digital color code used on DMR repeater systems?

• A. A code which automatically programs the repeater offset to a frequency chosen by the user
• B. A code transmitted by the repeater to indicate health and status of the equipment
• C. A code which identifies the specific CODEC being used so that the repeater can properly decode the audio
• D. An access code which must be programmed into a DMR transmitter to access a specific repeater

T8B11

24. Who is permitted to receive telemetry from an amateur radio satellite?

• A. Anyone
• B. Only a licensed radio amateur who has received the encryption key from AMSAT
• C. Only the control operator or a licensed radio amateur who has received the encryption key from the control operator
• D. Only the satellite control operator

T8C10

25. What is required before using the EchoLink system?

• A. Register your call sign and provide proof of license
• B. Purchase a license to use the EchoLink software
• C. At least a General Class license
• D. Complete the required EchoLink training

T0C04

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

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

T7A04

27. Which term describes the ability of a receiver to discriminate between multiple signals?

• A. Harmonic distortion
• B. Discrimination ratio
• C. Sensitivity
• D. Selectivity

T4B01

28. What is the effect of excessive microphone gain on SSB transmissions?

• A. Sideband inversion
• B. Frequency instability
• C. Increased SWR
• D. Distorted transmitted audio

T5B04

29. Which is equal to one microvolt?

• A. One one-thousandth of a volt
• B. One thousand kilovolts
• C. One million volts
• D. One one-millionth of a volt

T8D08

30. Which of the following is included in packet radio transmissions?

• A. A header that contains the call sign of the station to which the information is being sent
• B. All these choices are correct
• C. A checksum that permits error detection
• D. Automatic repeat request in case of error

T1B05

31. Which of the following bands include frequencies where Technicians are authorized to use digital modes such as FT8?

• A. All these choices are correct
• B. 6 meters
• C. 2 meters
• D. 10 meters

T5C11

32. How much current is required to deliver 120 watts at a voltage of 12 volts DC?

• A. 132 amperes
• B. 0.1 amperes
• C. 10 amperes
• D. 12 amperes

T9A02

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

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

T7D01

34. Which instrument would you use to measure electric potential?

• A. An ammeter
• B. A potentiometer
• C. A voltmeter
• D. An ohmmeter

T1F07

35. Which of the following restrictions apply when a non-licensed person speaks to a foreign amateur radio station via a station under the control of an FCC-licensed amateur radio operator?

• A. The person must be a U.S. citizen
• B. The licensed control operator must do the station identification
• C. All these choices are correct
• D. The foreign station must be in a country with which the U.S. has a third-party agreement