Practice Exam

T3C11

1. 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. Radio waves are not blocked by dust particles
• D. The atmosphere refracts radio waves slightly

T8B09

2. 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

T9B01

3. What is a benefit of low SWR?

• A. All these choices are correct
• B. Less antenna wear
• C. Reduced television interference
• D. Reduced signal loss

T5D10

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

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

T5B01

5. How many milliamperes is 1.5 amperes?

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

T2A09

6. Which of the following indicates that a station is listening on a repeater and looking for a contact?

• A. "CQ CQ" followed by the repeater's call sign
• B. The station's call sign followed by the word "monitoring"
• C. The repeater call sign followed by the station's call sign
• D. "QSY" followed by your call sign

T5C01

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

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

T3B08

8. What frequency range is referred to as VHF?

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

T1F01

9. When must the station and its records be available for FCC inspection?

• A. At any time after written notification by the FCC of such inspection
• B. At any time ten days after notification by the FCC of such an inspection
• C. At any time upon request by an FCC representative
• D. Only when presented with a valid warrant by an FCC official or government agent

T8C01

10. Which of the following methods is used to locate sources of noise interference or jamming?

• A. Radio direction finding
• B. Doppler radar
• C. Echolocation
• D. Phase locking

T1D09

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

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

T1E05

12. What is an amateur station's control point?

• A. The location of the station's transmitting antenna
• B. The mailing address of the station licensee
• C. The location at which the control operator function is performed
• D. The location of the station's transmitting apparatus

T0A12

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

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

T7A01

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

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

T7D10

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

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

T1A11

16. When is willful interference to other amateur radio stations permitted?

• A. To stop another amateur station that is breaking the FCC rules
• B. When making short test transmissions
• C. At any time, stations in the Amateur Radio Service are not protected from willful interference
• D. At no time

T1B06

17. On which HF bands does a Technician class operator have phone privileges?

• A. 80 meter, 40 meter, 15 meter, and 10 meter bands
• B. None
• C. 30 meter band only
• D. 10 meter band only

T8A02

18. What type of modulation is commonly used for VHF packet radio transmissions?

• A. AM
• B. PSK
• C. SSB
• D. FM or PM

T6B02

19. What electronic component allows current to flow in only one direction?

• A. Driven element
• B. Resistor
• C. Diode
• D. Fuse

T5A03

20. What is the name for the flow of electrons in an electric circuit?

• A. Voltage
• B. Capacitance
• C. Resistance
• D. Current

T6C05

21. What is component 4 in figure T-1?

• A. Battery
• B. Resistor
• C. Ground symbol
• D. Transistor

T6D09

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

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

T2B08

23. Which of the following applies when two stations transmitting on the same frequency interfere with each other?

• A. Interference is inevitable, so no action is required
• B. Both stations should choose another frequency to avoid conflict
• C. Use subaudible tones so both stations can share the frequency
• D. The stations should negotiate continued use of the frequency

T0B04

24. Which of the following is an important safety precaution to observe when putting up an antenna tower?

• A. All these choices are correct
• B. Wear a ground strap connected to your wrist at all times
• C. Insulate the base of the tower to avoid lightning strikes
• D. Look for and stay clear of any overhead electrical wires

T6A04

25. What electrical component stores energy in an electric field?

• A. Varistor
• B. Diode
• C. Inductor
• D. Capacitor

T9A07

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

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

T1C11

27. If your license has expired and is still within the allowable grace period, may you continue to transmit on the amateur radio bands?

• A. No, you must wait until the license has been renewed
• B. Yes, as soon as you apply for renewal
• C. Yes, for up to one year
• D. Yes, for up to two years

T8D11

28. What is an ARQ transmission system?

• A. A special transmission format limited to video signals
• B. A method of compressing data using autonomous reiterative Q codes prior to final encoding
• C. A system used to encrypt command signals to an amateur radio satellite
• D. An error correction method in which the receiving station detects errors and sends a request for retransmission

T4A11

29. Where should the negative power return of a mobile transceiver be connected in a vehicle?

• A. To any metal part of the vehicle
• B. At the 12 volt battery chassis ground
• C. At the antenna mount
• D. Through the transceiver's mounting bracket

T4B03

30. How is squelch adjusted so that a weak FM signal can be heard?

• A. Enable squelch enhancement
• B. Set the squelch threshold so that receiver output audio is on all the time
• C. Turn up the audio level until it overcomes the squelch threshold
• D. Turn on the anti-squelch function

T0C06

31. Which of the following is an acceptable method to determine whether your station complies with FCC RF exposure regulations?

• A. By calculation based on FCC OET Bulletin 65
• B. By measurement of field strength using calibrated equipment
• C. By calculation based on computer modeling
• D. All these choices are correct

T2C09

32. Are amateur station control operators ever permitted to operate outside the frequency privileges of their license class?

• A. Yes, but only when part of a RACES emergency plan
• B. No
• C. Yes, but only when part of a FEMA emergency plan
• D. Yes, but only in situations involving the immediate safety of human life or protection of property

T7C01

33. What is the primary purpose of a dummy load?

• A. To improve the efficiency of an antenna
• B. To improve the signal-to-noise ratio of a receiver
• C. To prevent over-modulation of a transmitter
• D. To prevent transmitting signals over the air when making tests

T3A06

34. What is the meaning of the term "picket fencing"?

• A. Alternating transmissions during a net operation
• B. Rapid flutter on mobile signals due to multipath propagation
• C. A type of ground system used with vertical antennas
• D. Local vs long-distance communications

T7B09

35. What should be the first step to resolve non-fiber optic cable TV interference caused by your amateur radio transmission?

• A. Be sure all TV feed line coaxial connectors are installed properly
• B. Add a high-pass filter to the TV antenna input
• C. Add a preamplifier to the TV antenna input
• D. Add a low-pass filter to the TV antenna input