Practice Exam

T8D08

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

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

T1E08

2. Which of the following is an example of automatic control?

• A. Using a computer or other device to identify automatically
• B. Repeater operation
• C. Using a computer or other device to send CW automatically
• D. Controlling a station over the internet

T7C04

3. What reading on an SWR meter indicates a perfect impedance match between the antenna and the feed line?

• A. 50:50
• B. Zero
• C. 1:1
• D. Full Scale

T9A12

4. What is an advantage of a 5/8 wavelength whip antenna for VHF or UHF mobile service?

• A. It radiates at a very high angle
• B. It eliminates distortion caused by reflected signals
• C. It has more gain than a 1/4-wavelength antenna
• D. It has 10 times the power gain of a 1/4 wavelength whip

T9B10

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

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

T8B09

6. What causes spin fading of satellite signals?

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

T5C09

7. How much power is delivered by a voltage of 13.8 volts DC and a current of 10 amperes?

• A. 23.8 watts
• B. 3.8 watts
• C. 0.7 watts
• D. 138 watts

T7B02

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

• A. The audio amplifier of the transmitter is overloaded
• 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 microphone gain of the transmitter is turned up too high

T0B07

9. Which of the following is an important safety rule to remember when using a crank-up tower?

• A. All these choices are correct
• B. This type of tower must never be painted
• C. This type of tower must not be climbed unless it is retracted, or mechanical safety locking devices have been installed
• D. This type of tower must never be grounded

T2B06

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

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

T4A10

11. What function is performed with a transceiver and a digital mode hot spot?

• A. High-speed digital communications for meteor scatter
• B. FT8 digital communications via AFSK
• C. Communication using digital voice or data systems via the internet
• D. RTTY encoding and decoding without a computer

T8A09

12. What is the approximate bandwidth of a VHF repeater FM voice signal?

• A. About 150 kHz
• B. Between 10 and 15 kHz
• C. Less than 500 Hz
• D. Between 50 and 125 kHz

T2C01

13. When do FCC rules NOT apply to the operation of an amateur station?

• A. When operating a RACES station
• B. When operating under special FEMA rules
• C. When operating under special ARES rules
• D. FCC rules always apply

T1C01

14. For which license classes are new licenses currently available from the FCC?

• A. Novice, Technician Plus, General, Advanced
• B. Technician, General, Amateur Extra
• C. Technician, Technician Plus, General, Amateur Extra
• D. Novice, Technician, General, Amateur Extra

T1D09

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

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

T6C03

16. What is component 2 in figure T-1?

• A. Indicator lamp
• B. Transistor
• C. Connector
• D. Resistor

T5D02

17. What formula is used to calculate voltage in a circuit?

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

T3B04

18. What is the velocity of a radio wave traveling through free space?

• A. Speed inversely proportional to its wavelength
• B. Speed of sound
• C. Speed of light
• D. Speed that increases as the frequency increases

T2A12

19. What should you do before calling CQ?

• A. Listen first to be sure that no one else is using the frequency
• B. All these choices are correct
• C. Make sure you are authorized to use that frequency
• D. Ask if the frequency is in use

T0C13

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

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

T6A06

21. What type of electrical component stores energy in a magnetic field?

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

T1A04

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

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

T8C01

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

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

T6D08

24. Which of the following is combined with an inductor to make a resonant circuit?

• A. Potentiometer
• B. Capacitor
• C. Zener diode
• D. Resistor

T3A02

25. What is the effect of vegetation on UHF and microwave signals?

• A. Knife-edge diffraction
• B. Absorption
• C. Polarization rotation
• D. Amplification

T1B09

26. 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. To allow for transmitter frequency drift
• C. All these choices are correct
• D. To allow for calibration error in the transmitter frequency display

T0A12

27. 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 circuit is grounded through the voltmeter
• C. Ensure that the voltmeter is set to the correct frequency
• D. Ensure that the voltmeter has very low impedance

T5B04

28. Which is equal to one microvolt?

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

T1F09

29. What type of amateur station simultaneously retransmits the signal of another amateur station on a different channel or channels?

• A. Earth station
• B. Beacon station
• C. Repeater station
• D. Message forwarding station

T3C05

30. Which of the following effects may allow radio signals to travel beyond obstructions between the transmitting and receiving stations?

• A. Knife-edge diffraction
• B. Faraday rotation
• C. Doppler shift
• D. Quantum tunneling

T6B04

31. Which of the following components can consist of three regions of semiconductor material?

• A. Triode
• B. Pentagrid converter
• C. Alternator
• D. Transistor

T5A09

32. Which of the following describes alternating current?

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

T7D08

33. Which of the following types of solder should not be used for radio and electronic applications?

• A. Acid-core solder
• B. Tin-copper solder
• C. Rosin-core solder
• D. Lead-tin solder

T7A10

34. What device increases the transmitted output power from a transceiver?

• A. An impedance network
• B. All these choices are correct
• C. An RF power amplifier
• D. A voltage divider

T4B10

35. Which of the following receiver filter bandwidths provides the best signal-to-noise ratio for SSB reception?

• A. 2400 Hz
• B. 1000 Hz
• C. 500 Hz
• D. 5000 Hz