Practice Exam

T4A03

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

• A. All these choices are correct
• B. To provide a good counterpoise for the antenna
• C. To minimize voltage drop when transmitting
• D. To avoid RF interference

T7A07

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

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

T1A02

3. Which agency regulates and enforces the rules for the Amateur Radio Service in the United States?

• A. The FCC
• B. FEMA
• C. All these choices are correct
• D. Homeland Security

T8C09

4. Which of the following protocols enables an amateur station to transmit through a repeater without using a radio to initiate the transmission?

• A. DMR
• B. IRLP
• C. D-STAR
• D. EchoLink

T1F11

5. Which of the following is a requirement for the issuance of a club station license grant?

• A. All these choices are correct
• B. The club must be registered with the American Radio Relay League
• C. The club must have at least four members
• D. The trustee must have an Amateur Extra Class operator license grant

T2B10

6. Which Q signal indicates that you are receiving interference from other stations?

• A. QRN
• B. QSB
• C. QRM
• D. QTH

T0C12

7. How does RF radiation differ from ionizing radiation (radioactivity)?

• A. RF radiation is perfectly safe
• B. RF radiation does not have sufficient energy to cause chemical changes in cells and damage DNA
• C. RF radiation is limited in range to a few feet
• D. RF radiation can only be detected with an RF dosimeter

T8B05

8. What is a satellite beacon?

• A. A transmission from a satellite that contains status information
• B. A reflective surface on the satellite
• C. The primary transmit antenna on the satellite
• D. An indicator light that shows where to point your antenna

T9B05

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

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

T2A01

10. What is a common repeater frequency offset in the 2 meter band?

• A. Plus or minus 600 kHz
• B. Plus or minus 1 MHz
• C. Plus or minus 500 kHz
• D. Plus or minus 5 MHz

T1C10

11. How soon after passing the examination for your first amateur radio license may you transmit on the amateur radio bands?

• A. As soon as you receive your license in the mail from the FCC
• B. Immediately on receiving your Certificate of Successful Completion of Examination (CSCE)
• C. As soon as your operator/station license grant appears in the FCC's license database
• D. As soon as your operator/station license grant appears on the ARRL website

T6C12

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

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

T0B11

13. Which of the following establishes grounding requirements for an amateur radio tower or antenna?

• A. Local electrical codes
• B. FCC Part 97 rules
• C. FAA tower lighting regulations
• D. UL recommended practices

T5A09

14. Which of the following describes alternating current?

• A. Current that alternates between a positive direction and zero
• B. Current that alternates between a negative direction and zero
• C. Current that alternates between positive and negative directions
• D. All these answers are correct

T4B01

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

• A. Distorted transmitted audio
• B. Increased SWR
• C. Frequency instability
• D. All these choices are correct

T8D08

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

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

T3A01

17. Why do VHF signal strengths sometimes vary greatly when the antenna is moved only a few feet?

• A. Multipath propagation cancels or reinforces signals
• B. The signal path encounters different concentrations of water vapor
• C. VHF ionospheric propagation is very sensitive to path length
• D. All these choices are correct

T3B11

18. What is the approximate velocity of a radio wave in free space?

• A. 150,000 meters per second
• B. 300,000,000 meters per second
• C. 300,000,000 miles per hour
• D. 150,000 miles per hour

T7C08

19. Which instrument can be used to determine SWR?

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

T8A01

20. Which of the following is a form of amplitude modulation?

• A. Spread spectrum
• B. Phase shift keying (PSK)
• C. Packet radio
• D. Single sideband

T1E03

21. Who must designate the station control operator?

• A. The station licensee
• B. The FCC
• C. The frequency coordinator
• D. Any licensed operator

T5C01

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

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

T0A05

23. Why should a 5-ampere fuse never be replaced with a 20-ampere fuse?

• A. The larger fuse would be likely to blow because it is rated for higher current
• B. The power supply ripple would greatly increase
• C. Excessive current could cause a fire
• D. All these choices are correct

T2C08

24. Which of the following is a characteristic of good traffic handling?

• A. Passing messages exactly as received
• B. Ensuring that any newsworthy messages are relayed to the news media
• C. All these choices are correct
• D. Making decisions as to whether messages are worthy of relay or delivery

T9A06

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

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

T1D03

26. When is it permissible to transmit messages encoded to obscure their meaning?

• A. Never
• B. Only during contests
• C. Only when transmitting certain approved digital codes
• D. Only when transmitting control commands to space stations or radio control craft

T6D09

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

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

T5B10

28. Which decibel value most closely represents a power decrease from 12 watts to 3 watts?

• A. -1 dB
• B. -3 dB
• C. -9 dB
• D. -6 dB

T7D07

29. Which of the following measurements are made using a multimeter?

• A. Impedance and reactance
• B. Signal strength and noise
• C. Voltage and resistance
• D. All these choices are correct

T3C04

30. Which of the following types of propagation is most commonly associated with occasional strong signals on the 10, 6, and 2 meter bands from beyond the radio horizon?

• A. Backscatter
• B. Sporadic E
• C. Gray-line propagation
• D. D region absorption

T6A05

31. What type of electrical component consists of conductive surfaces separated by an insulator?

• A. Resistor
• B. Potentiometer
• C. Capacitor
• D. Oscillator

T5D12

32. What is the voltage across a 10-ohm resistor if a current of 2 amperes flows through it?

• A. 0.2 volts
• B. 20 volts
• C. 12 volts
• D. 8 volts

T1B03

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

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

T6B07

34. What causes a light-emitting diode (LED) to emit light?

• A. Forward current
• B. Reverse current
• C. Capacitively-coupled RF signal
• D. Inductively-coupled RF signal

T7B04

35. Which of the following could you use to cure distorted audio caused by RF current on the shield of a microphone cable?

• A. Band-pass filter
• B. Low-pass filter
• C. Ferrite choke
• D. Preamplifier