Practice Exam

T4A07

1. Which of the following connections is made between a computer and a transceiver to use computer software when operating digital modes?

• A. Computer "line in" to transceiver push-to-talk
• B. Computer "line out" to transceiver speaker connector
• C. Computer "line out" to transceiver push-to-talk
• D. Computer "line in" to transceiver speaker connector

T7C10

2. Why should the outer jacket of coaxial cable be resistant to ultraviolet light?

• A. Ultraviolet light can damage the jacket and allow water to enter the cable
• B. Ultraviolet resistant jackets prevent harmonic radiation
• C. Ultraviolet light can increase losses in the cable's jacket
• D. Ultraviolet and RF signals can mix, causing interference

T6D09

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

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

T6B11

4. What is the term that describes a device's ability to amplify a signal?

• A. Gain
• B. Forward resistance
• C. Forward voltage drop
• D. On resistance

T8C03

5. What operating activity involves contacting as many stations as possible during a specified period?

• A. Simulated emergency exercises
• B. Net operations
• C. Contesting
• D. Public service events

T7A05

6. What is the name of a circuit that generates a signal at a specific frequency?

• A. Low-pass filter
• B. Phase modulator
• C. Reactance modulator
• D. Oscillator

T5D10

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

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

T2C04

8. What is RACES?

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

T9B10

9. What is the electrical difference between RG-58 and RG-213 coaxial cable?

• A. RG-58 cable has two shields
• B. There is no significant difference between the two types
• C. RG-213 cable has less loss at a given frequency
• D. RG-58 cable can handle higher power levels

T8B04

10. What mode of transmission is commonly used by amateur radio satellites?

• A. FM
• B. CW/data
• C. All these choices are correct
• D. SSB

T0C13

11. Who is responsible for ensuring that no person is exposed to RF energy above the FCC exposure limits?

• A. The local zoning board
• B. Anyone who is near an antenna
• C. The station licensee
• D. The FCC

T3C08

12. What causes tropospheric ducting?

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

T0A02

13. What health hazard is presented by electrical current flowing through the body?

• A. It may cause involuntary muscle contractions
• B. It may disrupt the electrical functions of cells
• C. All these choices are correct
• D. It may cause injury by heating tissue

T1B03

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

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

T9A11

15. What is antenna gain?

• A. The increase in impedance on receive or transmit compared to a reference antenna
• B. The increase in signal strength in a specified direction compared to a reference antenna
• C. The additional power that is required in the antenna when transmitting on a higher frequency
• D. The additional power that is added to the transmitter power

T1A04

16. How many operator/primary station license grants may be held by any one person?

• A. One for each band on which the person plans to operate
• B. One
• C. No more than two
• D. One for each permanent station location from which the person plans to operate

T8D03

17. What kind of data can be transmitted by APRS?

• A. Weather data
• B. All these choices are correct
• C. Text messages
• D. GPS position data

T8A10

18. What is the approximate bandwidth of AM fast-scan TV transmissions?

• A. More than 10 MHz
• B. About 6 MHz
• C. About 3 MHz
• D. About 1 MHz

T5B11

19. Which decibel value represents a power increase from 20 watts to 200 watts?

• A. 18 dB
• B. 12 dB
• C. 10 dB
• D. 28 dB

T7D10

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

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

T6A10

21. Which of the following battery chemistries is rechargeable?

• A. Nickel-metal hydride
• B. All these choices are correct
• C. Lead-acid
• D. Lithium-ion

T2B06

22. What type of signaling uses pairs of audio tones?

• A. GPRS
• B. CTCSS
• C. D-STAR
• D. DTMF

T5A07

23. Why are metals generally good conductors of electricity?

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

T3B10

24. What frequency range is referred to as HF?

• A. 300 to 3000 MHz
• B. 300 to 3000 kHz
• C. 3 to 30 MHz
• D. 30 to 300 MHz

T5C03

25. What describes the ability to store energy in a magnetic field?

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

T4B01

26. 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

T1F06

27. Which of the following self-assigned indicators are acceptable when using a phone transmission?

• A. All these choices are correct
• B. KL7CC slant W3
• C. KL7CC stroke W3
• D. KL7CC slash W3

T7B11

28. What is a symptom of RF feedback in a transmitter or transceiver?

• A. Frequent blowing of power supply fuses
• B. Reports of garbled, distorted, or unintelligible voice transmissions
• C. The transmitter will not stay on the desired frequency
• D. Excessive SWR at the antenna connection

T1E10

29. Which of the following is an example of remote control as defined in Part 97?

• A. Operating the station over the internet
• B. Repeater operation
• C. All these choices are correct
• D. Controlling a model aircraft, boat, or car by amateur radio

T1C02

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

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

T2A06

31. Which of the following is required when making on-the-air test transmissions?

• A. All these choices are correct
• B. Conduct tests only between 10 p.m. and 6 a.m. local time
• C. Identify the transmitting station
• D. Notify the FCC of the transmissions

T6C12

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

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

T1D11

33. When may an amateur station transmit without identifying on the air?

• A. When transmitting signals to control model craft
• B. When the transmissions are unmodulated
• C. When the transmissions are of a brief nature to make station adjustments
• D. When the transmitted power level is below 1 watt

T3A03

34. What antenna polarization is normally used for long-distance CW and SSB contacts on the VHF and UHF bands?

• A. Right-hand circular
• B. Vertical
• C. Left-hand circular
• D. Horizontal

T0B10

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

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