Practice Exam

T3C01

1. Why are simplex UHF signals rarely heard beyond their radio horizon?

• A. They are too weak to go very far
• B. UHF signals are usually not propagated by the ionosphere
• C. FCC regulations prohibit them from going more than 50 miles
• D. UHF signals are absorbed by the ionospheric D region

T2B12

2. What is the digital color code used on DMR repeater systems?

• A. A code transmitted by the repeater to indicate health and status of the equipment
• B. An access code which must be programmed into a DMR transmitter to access a specific repeater
• C. A code which automatically programs the repeater offset to a frequency chosen by the user
• D. A code which identifies the specific CODEC being used so that the repeater can properly decode the audio

T8A01

3. Which of the following is a form of amplitude modulation?

• A. Packet radio
• B. Phase shift keying (PSK)
• C. Spread spectrum
• D. Single sideband

T2C05

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

• A. A count of the number of activations of the net each month
• B. Formal messages exchanged by net stations
• C. Operation by mobile or portable stations
• D. The number of stations checking in and out of a net

T3A03

5. What antenna polarization is normally used for long-distance CW and SSB contacts on the VHF and UHF bands?

• A. Horizontal
• B. Left-hand circular
• C. Right-hand circular
• D. Vertical

T9B03

6. Why is coaxial cable the most common feed line for amateur radio antenna systems?

• A. It is less expensive than any other type of feed line
• B. It can handle more power than any other type of feed line
• C. It has less loss than any other type of feed line
• D. It is easy to use and requires few special installation considerations

T0C13

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

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

T3B11

8. What is the approximate velocity of a radio wave in free space?

• A. 150,000,000 miles per hour
• B. 300,000,000 miles per hour
• C. 150,000,000 meters per second
• D. 300,000,000 meters per second

T5D12

9. What is the voltage across a 10-ohm resistor if a current of 2 amperes flows through it?

• A. 12 volts
• B. 0.2 volts
• C. 8 volts
• D. 20 volts

T1C11

10. If your license has expired and is still within the allowable grace period, may you continue to transmit on the amateur radio bands?

• A. Yes, for up to two years
• B. Yes, for up to one year
• C. Yes, as soon as you apply for renewal
• D. No, you must wait until the license has been renewed

T6B12

11. What are the names of the electrodes of a bipolar junction transistor?

• A. Emitter, base, collector
• B. Pole one, pole two, output
• C. Input, output, supply
• D. Signal, bias, power

T6C10

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

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

T1E09

13. Which amateur stations may be remotely controlled?

• A. Any station
• B. Only repeater stations
• C. Only digital stations
• D. Only automatically controlled stations

T6A01

14. What electrical component opposes the flow of current in a DC circuit?

• A. Transformer
• B. Inverter
• C. Resistor
• D. Inductor

T0A09

15. What should be done to all external ground rods or earth connections?

• A. Keep them as far apart as possible
• B. Bond them together with heavy wire or conductive strap
• C. Waterproof them with silicone caulk or electrical tape
• D. Tune them for resonance on the lowest frequency of operation

T8D04

16. What is meant by the term "NTSC?"

• A. A special mode for satellite uplink
• B. A frame compression scheme for TV signals
• C. An analog fast-scan color TV signal
• D. A digital transmission standard for encrypting data

T1F04

17. What language must you use for identification when using a phone emission?

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

T6D04

18. Which of the following displays an electrical quantity as a numeric value?

• A. Potentiometer
• B. Relay
• C. Transistor
• D. Meter

T7A03

19. Which of the following is used to convert a signal from one frequency to another?

• A. Amplifier
• B. Inverter
• C. Mixer
• D. Phase splitter

T9A05

20. Which of the following increases the resonant frequency of a dipole antenna?

• A. Shortening it
• B. Inserting coils in series with radiating wires
• C. Adding capacitive loading to the ends of the radiating wires
• D. Lengthening it

T5A08

21. Which of the following is a good electrical insulator?

• A. Graphite
• B. Sea water
• C. Stainless steel
• D. Glass

T1B12

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

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

T1A07

23. What is the FCC Part 97 definition of a space station?

• A. An amateur station located more than 50 km above Earth's surface
• B. A manned satellite orbiting Earth
• C. Any satellite orbiting Earth
• D. An amateur station using amateur radio satellites for relay of signals

T0B03

24. Under what circumstances is it safe to climb a tower without a helper or observer?

• A. When no electrical work is being performed
• B. When the work being done is not more than 20 feet above the ground
• C. Never
• D. When no mechanical work is being performed

T7B07

25. Which of the following can reduce interference to a 2-meter band transceiver from a nearby commercial FM station?

• A. Installing bypass capacitors on the microphone cable
• B. Installing a band-reject filter
• C. Using double-shielded coaxial cable
• D. Installing an RF preamplifier

T4A09

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

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

T7C02

27. Which of the following is used to determine if an antenna is resonant at the desired operating frequency?

• A. An antenna analyzer
• B. A Q meter
• C. A frequency counter
• D. A VTVM

T5C09

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

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

T2A08

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

• A. "Communication Quality," used to indicate transmitted audio clarity
• B. Calling any station
• C. Only the called station should transmit
• D. A shortened form of the term "Contest QSO"

T8B10

30. What does the term LEO mean in reference to communication satellites?

• A. Low Elevation Orbit, which appears close to the horizon from the earth station
• B. Low Earth Orbit, which has a period of around 100 minutes
• C. Low Equilibrium Orbit, which has a slightly unstable period
• D. Low Energy Orbit, which conserves battery power

T7D06

31. Which of the following can damage a multimeter?

• A. Attempting to measure voltage when using the resistance setting
• B. Failing to connect one of the probes to ground
• C. Attempting to measure resistance using the voltage setting
• D. Not allowing it to warm up properly

T8C09

32. Which of the following protocols enables an amateur station to transmit through a repeater without using a radio to initiate the transmission?

• A. D-STAR
• B. DMR
• C. EchoLink
• D. IRLP

T1D12

33. Which of the following is required when making on-the-air test transmissions?

• A. All these choices are correct
• B. Conduct tests only between 10 p.m. and 6 a.m. local time
• C. Identify the transmitting station
• D. Notify the FCC of the transmissions

T4B01

34. What is the effect of excessive microphone gain on SSB transmissions?

• A. Increased SWR
• B. Frequency instability
• C. Sideband inversion
• D. Distorted transmitted audio

T5B01

35. How many milliamperes is 1.5 amperes?

• A. 1500 milliamperes
• B. 1,500,000 milliamperes
• C. 0.0000015 milliamperes
• D. 0.0015 milliamperes