Practice Exam

T1B06

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

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

T8C07

2. What is Voice Over Internet Protocol (VoIP)?

• A. A technique for measuring the modulation quality of a transmitter using remote sites monitored via the internet
• B. A method of delivering voice communications over the internet using digital techniques
• C. A technique employed to "spot" DX stations via the internet
• D. A set of rules specifying how to identify your station when linked over the internet to another station

T1F04

3. What language may you use for identification when operating in a phone sub-band?

• A. Any language recognized by the United Nations
• B. Any language recognized by the ITU
• C. English, French, or Spanish
• D. English

T8B06

4. Which of the following are inputs to a satellite tracking program?

• A. All these choices are correct
• B. The satellite transmitted power
• C. The last observed time of zero Doppler shift
• D. The Keplerian elements

T3C08

5. What causes tropospheric ducting?

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

T7B03

6. Which of the following can cause radio frequency interference?

• A. Fundamental overload
• B. Spurious emissions
• C. Harmonics
• D. All these choices are correct

T0B08

7. Which is a proper grounding method for a tower?

• A. A ferrite-core RF choke connected between the tower and ground
• B. A single four-foot ground rod, driven into the ground no more than 12 inches from the base
• C. Separate eight-foot ground rods for each tower leg, bonded to the tower and each other
• D. A connection between the tower base and a cold water pipe

T1D05

8. When may amateur radio operators use their stations to notify other amateurs of the availability of equipment for sale or trade?

• A. Never
• B. When no profit is made on the sale
• C. When selling amateur radio equipment and not on a regular basis
• D. When the equipment is not the personal property of either the station licensee, or the control operator, or their close relatives

T6A11

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

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

T1C02

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

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

T5A07

11. Why are metals generally good conductors of electricity?

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

T0A02

12. 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. It may cause injury by heating tissue
• D. All these choices are correct

T1A01

13. Which of the following is part of the Basis and Purpose of the Amateur Radio Service?

• A. All these choices are correct
• B. Providing personal radio communications for as many citizens as possible
• C. Providing communications for international non-profit organizations
• D. Advancing skills in the technical and communication phases of the radio art

T9A02

14. Which of the following describes a type of antenna loading?

• A. Strengthening the radiating elements of a beam antenna to better resist wind damage
• B. Installing a spring in the base of a mobile vertical antenna to make it more flexible
• C. Electrically lengthening by inserting inductors in radiating elements
• D. Inserting a resistor in the radiating portion of the antenna to make it resonant

T6C07

15. What is component 8 in figure T-2?

• A. Inductor
• B. Regulator IC
• C. Resistor
• D. Light emitting diode

T9B09

16. What can cause erratic changes in SWR?

• A. Over-modulation
• B. Loose connection in the antenna or feed line
• C. Overload from a strong local station
• D. Local thunderstorm

T3A06

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

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

T0C05

18. Why do exposure limits vary with frequency?

• A. Lower frequency RF fields have more energy than higher frequency fields
• B. The human body absorbs more RF energy at some frequencies than at others
• C. Lower frequency RF fields do not penetrate the human body
• D. Higher frequency RF fields are transient in nature

T8A06

19. Which sideband is normally used for 10 meter HF, VHF, and UHF single-sideband communications?

• A. Inverted sideband
• B. Suppressed sideband
• C. Lower sideband
• D. Upper sideband

T8D05

20. Which of the following is an application of APRS?

• A. Providing real-time tactical digital communications in conjunction with a map showing the locations of stations
• B. Providing information on the number of stations signed into a repeater
• C. Showing automatically the number of packets transmitted via PACTOR during a specific time interval
• D. Providing voice over internet connection between repeaters

T1E11

21. Who does the FCC presume to be the control operator of an amateur station, unless documentation to the contrary is in the station records?

• A. The person operating the station equipment
• B. The third party participant
• C. The station custodian
• D. The station licensee

T7D04

22. Which instrument is used to measure electric current?

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

T7A10

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

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

T2A03

24. What is a common repeater frequency offset in the 70 cm band?

• A. Plus or minus 600 kHz
• B. Plus or minus 500 kHz
• C. Plus or minus 1 MHz
• D. Plus or minus 5 MHz

T7C11

25. What is a disadvantage of air core coaxial cable when compared to foam or solid dielectric types?

• A. It cannot be used for VHF or UHF antennas
• B. It cannot be used at below freezing temperatures
• C. It has more loss per foot
• D. It requires special techniques to prevent moisture in the cable

T6D05

26. What type of circuit controls the amount of voltage from a power supply?

• A. Regulator
• B. Phase inverter
• C. Filter
• D. Oscillator

T3B06

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

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

T6B05

28. What type of transistor has a gate, drain, and source?

• A. Tesla-effect
• B. Bipolar junction
• C. Field-effect
• D. Varistor

T5D01

29. What formula is used to calculate current in a circuit?

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

T4A09

30. How can you determine the length of time that equipment can be powered from a battery?

• A. Divide the battery ampere-hour rating by the average current draw of the equipment
• B. Multiply the watts per hour consumed by the equipment by the battery power rating
• C. Divide the watt-hour rating of the battery by the peak power consumption of the equipment
• D. Multiply the square of the current rating of the battery by the input resistance of the equipment

T4B07

31. What does a DMR "code plug" contain?

• A. Access information for repeaters and talkgroups
• B. The DMR software version
• C. Your call sign in CW for automatic identification
• D. The codec for digitizing audio

T5B06

32. Which is equal to 3000 milliamperes?

• A. 0.003 amperes
• B. 0.3 amperes
• C. 3 amperes
• D. 3,000,000 amperes

T2C09

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

T5C09

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

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

T2B12

35. What is the purpose of the color code used on DMR repeater systems?

• A. Defines the minimum signal level required for access
• B. Defines the frequency pair to use
• C. Identifies the codec used
• D. Must match the repeater color code for access