Practice Exam

T9B01

1. What is a benefit of low SWR?

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

T7D10

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

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

T0C01

3. What type of radiation are radio signals?

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

T6A11

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

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

T9A03

5. Which of the following describes a simple dipole oriented parallel to Earth's surface?

• A. A horizontally polarized antenna
• B. A ground-wave antenna
• C. A vertically polarized antenna
• D. A travelling-wave antenna

T3B03

6. What are the two components of a radio wave?

• A. Electric and magnetic fields
• B. Ionizing and non-ionizing radiation
• C. Impedance and reactance
• D. Voltage and current

T4B10

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

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

T8A08

8. What is the approximate bandwidth of a typical single sideband (SSB) voice signal?

• A. 15 kHz
• B. 1 kHz
• C. 3 kHz
• D. 6 kHz

T7B09

9. 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 low-pass filter to the TV antenna input
• C. Add a high-pass filter to the TV antenna input
• D. Add a preamplifier to the TV antenna input

T8D02

10. What is a "talkgroup" on a DMR repeater?

• A. A net that meets at a specified time
• B. A way for groups of users to share a channel at different times without hearing other users on the channel
• C. A protocol that increases the signal-to-noise ratio when multiple repeaters are linked together
• D. A group of operators sharing common interests

T1B12

11. Except for some specific restrictions, what is the maximum peak envelope power output for Technician class operators using frequencies above 30 MHz?

• A. 100 watts
• B. 50 watts
• C. 1500 watts
• D. 500 watts

T2B02

12. What term describes the use of a sub-audible tone transmitted along with normal voice audio to open the squelch of a receiver?

• A. CTCSS
• B. Carrier squelch
• C. DTMF
• D. Tone burst

T7C10

13. Why should the outer jacket of coaxial cable be resistant to ultraviolet light?

• A. Ultraviolet light can increase losses in the cable's jacket
• B. Ultraviolet resistant jackets prevent harmonic radiation
• C. Ultraviolet and RF signals can mix, causing interference
• D. Ultraviolet light can damage the jacket and allow water to enter the cable

T1D09

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

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

T2A12

15. What should you do before calling CQ?

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

T1A04

16. 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. One for each band on which the person plans to operate
• D. No more than two

T7A06

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

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

T6D02

18. What is a relay?

• A. An inverting amplifier
• B. A current controlled amplifier
• C. An electrically-controlled switch
• D. A pass transistor

T1C09

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

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

T3C06

20. What type of propagation is responsible for allowing over-the-horizon VHF and UHF communications to ranges of approximately 300 miles on a regular basis?

• A. F2 region refraction
• B. Tropospheric ducting
• C. Faraday rotation
• D. D region refraction

T0B05

21. What is the purpose of a safety wire through a turnbuckle used to tension guy lines?

• A. Prevent loosening of the turnbuckle from vibration
• B. Secure the guy line if the turnbuckle breaks
• C. Provide an ability to measure for proper tensioning
• D. Provide a ground path for lightning strikes

T5C10

22. How much power is delivered by a voltage of 12 volts DC and a current of 2.5 amperes?

• A. 30 watts
• B. 0.208 watts
• C. 14.5 watts
• D. 4.8 watts

T0A12

23. 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 and leads are rated for use at the voltages to be measured
• D. Ensure that the voltmeter has very low impedance

T2C05

24. What does the term "traffic" refer to in net operation?

• A. Operation by mobile or portable stations
• B. The number of stations checking in and out of a net
• C. Requests to activate the net by a served agency
• D. Messages exchanged by net stations

T1E10

25. Which of the following is an example of remote control as defined in Part 97?

• A. Repeater operation
• B. Operating the station over the internet
• C. Controlling a model aircraft, boat, or car by amateur radio
• D. All these choices are correct

T6C05

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

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

T5B01

27. How many milliamperes is 1.5 amperes?

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

T3A02

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

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

T5A06

29. What is the unit of frequency?

• A. Hertz
• B. Henry
• C. Farad
• D. Tesla

T1F06

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

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

T4A09

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

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

T6B01

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

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

T5D08

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

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

T8B12

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

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

T8C03

35. What operating activity involves contacting as many stations as possible during a specified period?

• A. Net operations
• B. Public service events
• C. Simulated emergency exercises
• D. Contesting