Practice Exam

T0A12

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

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

T5D09

2. What is the current through a 24-ohm resistor connected across 240 volts?

• A. 10 amperes
• B. 24,000 amperes
• C. 0.1 amperes
• D. 216 amperes

T1B09

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

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

T6B01

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

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

T7A08

5. Which of the following describes combining speech with an RF carrier signal?

• A. Oscillation
• B. Impedance matching
• C. Modulation
• D. Low-pass filtering

T7D01

6. Which instrument would you use to measure electric potential?

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

T1C02

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

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

T8A09

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

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

T0B10

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

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

T1E02

10. Who may be the control operator of a station communicating through an amateur satellite or space station?

• A. Only an Amateur Extra Class operator
• B. Only an Amateur Extra Class operator who is also an AMSAT member
• C. A General class or higher licensee with a satellite operator certification
• D. Any amateur allowed to transmit on the satellite uplink frequency

T8D01

11. Which of the following is a digital communications mode?

• A. IEEE 802.11
• B. FT8
• C. Packet radio
• D. All these choices are correct

T2B10

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

• A. QSB
• B. QRM
• C. QTH
• D. QRN

T3C09

13. What is generally the best time for long-distance 10 meter band propagation via the F region?

• A. From dawn to shortly after sunset during periods of high sunspot activity
• B. From shortly after sunset to dawn during periods of low sunspot activity
• C. From shortly after sunset to dawn during periods of high sunspot activity
• D. From dawn to shortly after sunset during periods of low sunspot activity

T2C08

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

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

T1D10

15. How does the FCC define broadcasting for the Amateur Radio Service?

• A. Transmissions intended for reception by the general public
• B. Transmission of messages directed only to amateur operators
• C. Two-way transmissions by amateur stations
• D. Any transmission made by the licensed station

T5C02

16. What is the unit of capacitance?

• A. The volt
• B. The farad
• C. The henry
• D. The ohm

T5B03

17. Which is equal to one kilovolt?

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

T0C08

18. Which of the following actions can reduce exposure to RF radiation?

• A. Relocate antennas
• B. Increase the duty cycle
• C. Relocate the transmitter
• D. All these choices are correct

T8C05

19. What is a grid locator?

• A. An instrument for radio direction finding
• B. A letter-number designator assigned to a geographic location
• C. A letter-number designator assigned to an azimuth and elevation
• D. An instrument for neutralizing a final amplifier

T6A02

20. What type of component is often used as an adjustable volume control?

• A. Transformer
• B. Potentiometer
• C. Power resistor
• D. Fixed resistor

T6D07

21. Which of the following is commonly used as a visual indicator?

• A. Bipolar transistor
• B. FET
• C. LED
• D. Zener diode

T9A08

22. What is the approximate length, in inches, of a quarter-wavelength vertical antenna for 146 MHz?

• A. 50
• B. 12
• C. 19
• D. 112

T7B09

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

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

T3A06

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

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

T1F08

25. What is the definition of third party communications?

• A. Temporary authorization for an unlicensed person to transmit on the amateur bands for technical experiments
• B. Amateur radio communications where three stations are in communications with one another
• C. A message from a control operator to another amateur station control operator on behalf of another person
• D. Operation when the transmitting equipment is licensed to a person other than the control operator

T4B10

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

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

T1A03

27. What do the FCC rules state regarding the use of a phonetic alphabet for station identification in the Amateur Radio Service?

• A. All these choices are correct
• B. It is required when in contact with foreign stations
• C. It is required when transmitting emergency messages
• D. It is encouraged

T4A11

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

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

T8B12

29. Which of the following is a way to determine whether your satellite uplink power is neither too low nor too high?

• A. Check your signal strength report in the telemetry data
• B. All these choices are correct
• C. Your signal strength on the downlink should be about the same as the beacon
• D. Listen for distortion on your downlink signal

T7C07

30. What happens to power lost in a feed line?

• A. It increases the SWR
• B. It is converted into heat
• C. It is radiated as harmonics
• D. It distorts the signal

T3B06

31. What is the formula for converting frequency to approximate wavelength in meters?

• A. Wavelength in meters equals frequency in hertz multiplied by 300
• B. Wavelength in meters equals frequency in megahertz divided by 300
• C. Wavelength in meters equals 300 divided by frequency in megahertz
• D. Wavelength in meters equals frequency in hertz divided by 300

T2A08

32. What is the meaning of the procedural signal "CQ"?

• A. Test transmission, no reply expected
• B. Calling any station
• C. Call on the quarter hour
• D. Only the called station should transmit

T5A05

33. What is the electrical term for the force that causes electron flow?

• A. Capacitance
• B. Ampere-hours
• C. Voltage
• D. Inductance

T6C11

34. What is component 4 in figure T-3?

• A. Ground
• B. Dummy load
• C. Antenna
• D. Transmitter

T9B05

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

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