Practice Exam

T7C11

1. 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 cannot be used for VHF or UHF antennas
• C. It cannot be used at below freezing temperatures
• D. It requires special techniques to prevent moisture in the cable

T5A07

2. Why are metals generally good conductors of electricity?

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

T5C07

3. What is the abbreviation for megahertz?

• A. MHz
• B. Mhz
• C. mh
• D. MH

T1F06

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

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

T1A08

5. Which of the following entities recommends transmit/receive channels and other parameters for auxiliary and repeater stations?

• A. Frequency Spectrum Manager appointed by the FCC
• B. Volunteer Frequency Coordinator recognized by local amateurs
• C. FCC Regional Field Office
• D. International Telecommunication Union

T0C01

6. What type of radiation are radio signals?

• A. Ionizing radiation
• B. Alpha radiation
• C. Gamma radiation
• D. Non-ionizing radiation

T1C09

7. What is the grace period for renewal if an amateur license expires?

• A. Five years
• B. Ten years
• C. Two years
• D. Three years

T7A06

8. What device converts the RF input and output of a transceiver to another band?

• A. Low-pass filter
• B. High-pass filter
• C. Phase converter
• D. Transverter

T4A01

9. Which of the following is an appropriate power supply rating for a typical 50 watt output mobile FM transceiver?

• A. 13.8 volts at 12 amperes
• B. 24.0 volts at 12 amperes
• C. 13.8 volts at 4 amperes
• D. 24.0 volts at 4 amperes

T6C10

10. What is component 3 in figure T-3?

• A. Variable capacitor
• B. Variable inductor
• C. Meter
• D. Connector

T6B08

11. What does the abbreviation FET stand for?

• A. Frequency Emission Transmitter
• B. Fast Electron Transistor
• C. Free Electron Transmitter
• D. Field Effect Transistor

T6A11

12. Which of the following battery chemistries is not rechargeable?

• A. Carbon-zinc
• B. Lead-acid
• C. Lithium-ion
• D. Nickel-cadmium

T9B12

13. What is standing wave ratio (SWR)?

• A. The ratio of amplifier power output to input
• B. A measure of how well a load is matched to a transmission line
• C. The transmitter efficiency ratio
• D. An indication of the quality of your station's ground connection

T8A09

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

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

T2C06

15. What is the Amateur Radio Emergency Service (ARES)?

• A. A training program that certifies amateur operators for membership in the Radio Amateur Civil Emergency Service
• B. A group of licensed amateurs who have voluntarily registered their qualifications and equipment for communications duty in the public service
• C. A group of licensed amateurs who are members of the military and who voluntarily agreed to provide message handling services in the case of an emergency
• D. A training program that provides licensing courses for those interested in obtaining an amateur license to use during emergencies

T5B03

16. Which is equal to one kilovolt?

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

T5D08

17. What is the current through a 100-ohm resistor connected across 200 volts?

• A. 100 amperes
• B. 20,000 amperes
• C. 0.5 amperes
• D. 2 amperes

T8C08

18. What is the Internet Radio Linking Project (IRLP)?

• A. A system for providing access to websites via amateur radio
• B. A technique for measuring signal strength of an amateur transmitter via the internet
• C. A technique to connect amateur radio systems, such as repeaters, via the internet using Voice Over Internet Protocol (VoIP)
• D. A system for informing amateurs in real time of the frequency of active DX stations

T8D10

19. Which of the following operating activities is supported by digital mode software in the WSJT-X software suite?

• A. Earth-Moon-Earth
• B. Weak signal propagation beacons
• C. Meteor scatter
• D. All these choices are correct

T4B09

20. How is a specific group of stations selected on a digital voice transceiver?

• A. By enabling the group's CTCSS tone
• B. By entering the group's identification code
• C. By activating automatic identification
• D. By retrieving the frequencies from transceiver memory

T6D06

21. What component changes 120 V AC power to a lower AC voltage for other uses?

• A. Transistor
• B. Variable capacitor
• C. Diode
• D. Transformer

T3B05

22. What is the relationship between wavelength and frequency?

• A. Wavelength gets longer as frequency increases
• B. Wavelength and frequency are unrelated
• C. Wavelength gets shorter as frequency increases
• D. Wavelength and frequency increase as path length increases

T9A08

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

• A. 112
• B. 50
• C. 19
• D. 12

T2A11

24. What term describes an amateur station that is transmitting and receiving on the same frequency?

• A. Simplex
• B. Full duplex
• C. Diplex
• D. Multiplex

T0B06

25. What is the minimum safe distance from a power line to allow when installing an antenna?

• A. The height of the power line above ground
• B. 1/2 wavelength at the operating frequency
• C. Add the height of the antenna to the height of the power line and multiply by a factor of 1.5
• D. Enough so that if the antenna falls, no part of it can come closer than 10 feet to the power wires

T7D04

26. Which instrument is used to measure electric current?

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

T1B11

27. What is the maximum peak envelope power output for Technician class operators in their HF band segments?

• A. 50 watts
• B. 10 watts
• C. 200 watts
• D. 100 watts

T3A01

28. Why do VHF signal strengths sometimes vary greatly when the antenna is moved only a few feet?

• A. VHF ionospheric propagation is very sensitive to path length
• B. The signal path encounters different concentrations of water vapor
• C. Multipath propagation cancels or reinforces signals
• D. All these choices are correct

T1D06

29. What, if any, are the restrictions concerning transmission of language that may be considered indecent or obscene?

• A. The ITU maintains a list of words that are not permitted to be used on amateur frequencies
• B. Any such language is prohibited
• C. There is no such prohibition
• D. The FCC maintains a list of words that are not permitted to be used on amateur frequencies

T8B03

30. Which of the following are provided by satellite tracking programs?

• A. All these choices are correct
• B. The apparent frequency of the satellite transmission, including effects of Doppler shift
• C. Maps showing the real-time position of the satellite track over Earth
• D. The time, azimuth, and elevation of the start, maximum altitude, and end of a pass

T7B05

31. How can fundamental overload of a non-amateur radio or TV receiver by an amateur signal be reduced or eliminated?

• A. Block the interfering signal with a filter on the amateur transmitter
• B. Switch the transmitter from FM to SSB
• C. Block the amateur signal with a filter at the antenna input of the affected receiver
• D. Switch the transmitter to a narrow-band mode

T2B03

32. 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. Multiple repeaters with the same control operator
• D. A single repeater with more than one receiver

T0A12

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

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

T1E08

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

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

T3C09

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