Practice Exam

T7D04

1. Which instrument is used to measure electric current?

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

T9A05

2. Which of the following increases the resonant frequency of a dipole antenna?

• A. Lengthening it
• B. Shortening it
• C. Inserting coils in series with radiating wires
• D. Adding capacitive loading to the ends of the radiating wires

T6A01

3. What electrical component opposes the flow of current in a DC circuit?

• A. Resistor
• B. Inductor
• C. Inverter
• D. Transformer

T1C10

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

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

T5C10

5. How much power is delivered by a voltage of 12 volts DC and a current of 2.5 amperes?

• A. 30 watts
• B. 4.8 watts
• C. 0.208 watts
• D. 14.5 watts

T1E07

6. When the control operator is not the station licensee, who is responsible for the proper operation of the station?

• A. Only the control operator
• B. The control operator and the station licensee
• C. Only the station licensee
• D. All licensed amateurs who are present at the operation

T7A01

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

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

T3C02

8. What is a characteristic of HF communication compared with communications on VHF and higher frequencies?

• A. There is less atmospheric interference (static) on HF
• B. HF accommodates wider bandwidth signals
• C. Long-distance ionospheric propagation is far more common on HF
• D. HF antennas are generally smaller

T2A05

9. How should you respond to a station calling CQ?

• A. Transmit the other station's call sign followed by your call sign
• B. Transmit a signal report followed by your call sign
• C. Transmit your call sign followed by the other station's call sign
• D. Transmit "CQ" followed by the other station's call sign

T8B09

10. What causes spin fading of satellite signals?

• A. Interfering signals within the satellite uplink band
• B. Rotation of the satellite and its antennas
• C. Doppler shift of the received signal
• D. Circular polarized noise interference radiated from the sun

T2C04

11. 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 FCC part 97 amateur radio service for civil defense communications during national emergencies
• D. An international radio experimentation society

T0A01

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

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

T3B08

13. What frequency range is referred to as VHF?

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

T5A07

14. Why are metals generally good conductors of electricity?

• A. They have many free electrons
• B. They have relatively high density
• C. All these choices are correct
• D. They have many free protons

T1A01

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

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

T7B02

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

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

T0B10

17. Which of the following is true when installing grounding conductors used for lightning protection?

• A. Sharp bends must be avoided
• B. Wires must be carefully routed with precise right-angle bends
• C. Common grounds must be avoided
• D. Use only non-insulated wire

T5D03

18. What formula is used to calculate resistance in a circuit?

• A. R = E + I
• B. R = E x I
• C. R = E / I
• D. R = E - I

T1D07

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

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

T9B11

20. Which of the following types of feed line has the lowest loss at VHF and UHF?

• A. 75-ohm flexible coax
• B. Air-insulated hardline
• C. 50-ohm flexible coax
• D. Multi-conductor unbalanced cable

T1B09

21. Why should you not set your transmit frequency to be exactly at the edge of an amateur band or sub-band?

• A. So that modulation sidebands do not extend beyond the band edge
• B. All these choices are correct
• C. To allow for calibration error in the transmitter frequency display
• D. To allow for transmitter frequency drift

T4B12

22. What is the result of tuning an FM receiver above or below a signal's frequency?

• A. Sideband inversion
• B. Change in audio pitch
• C. Generation of a heterodyne tone
• D. Distortion of the signal's audio

T6C08

23. What is component 9 in figure T-2?

• A. Variable inductor
• B. Variable resistor
• C. Variable transformer
• D. Variable capacitor

T8C06

24. How is over the air access to IRLP nodes accomplished?

• A. By using DTMF signals
• B. By using CTCSS tone codes
• C. By obtaining a password that is sent via voice to the node
• D. By entering the proper internet password

T8D13

25. What is FT8?

• A. A wideband FM voice mode
• B. A digital slow-scan TV mode with forward error correction and automatic color compensation
• C. An eight channel multiplex mode for FM repeaters
• D. A digital mode capable of low signal-to-noise operation

T5B09

26. Which decibel value most closely represents a power increase from 5 watts to 10 watts?

• A. 2 dB
• B. 3 dB
• C. 10 dB
• D. 5 dB

T8A06

27. Which sideband is normally used for 10 meter HF, VHF, and UHF single-sideband communications?

• A. Inverted sideband
• B. Suppressed sideband
• C. Upper sideband
• D. Lower sideband

T6D11

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

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

T0C07

29. What hazard is created by touching an antenna during a transmission?

• A. RF burn to skin
• B. All these choices are correct
• C. Electrocution
• D. Radiation poisoning

T1F11

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

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

T3A08

31. What is a likely cause of irregular fading of signals propagated by the ionosphere?

• A. Random combining of signals arriving via different paths
• B. Frequency shift due to Faraday rotation
• C. Intermodulation distortion
• D. Interference from thunderstorms

T4A05

32. Where should an RF power meter be installed?

• A. In parallel with the push-to-talk line and the antenna
• B. At the power supply output
• C. In the feed line, between the transmitter and antenna
• D. In the power supply cable, as close as possible to the radio

T7C11

33. What is a disadvantage of air core coaxial cable when compared to foam or solid dielectric types?

• A. It has more loss per foot
• B. It requires special techniques to prevent moisture in the cable
• C. It cannot be used at below freezing temperatures
• D. It cannot be used for VHF or UHF antennas

T2B03

34. Which of the following describes a linked repeater network?

• A. A network of repeaters in which signals received by one repeater are transmitted by all the repeaters in the network
• B. A system of repeaters linked by APRS
• C. A single repeater with more than one receiver
• D. Multiple repeaters with the same control operator

T6B01

35. Which is true about forward voltage drop in a diode?

• A. It indicates that the diode is defective
• B. It has no impact on the voltage delivered to the load
• C. It is proportional to peak inverse voltage
• D. It is lower in some diode types than in others