Practice Exam

T8A10

1. What is the approximate bandwidth of AM fast-scan TV transmissions?

• A. About 6 MHz
• B. About 1 MHz
• C. More than 10 MHz
• D. About 3 MHz

T3C08

2. What causes tropospheric ducting?

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

T9A06

3. Which of the following types of antenna offers the greatest gain?

• A. J pole
• B. Isotropic
• C. 5/8 wave vertical
• D. Yagi

T9B04

4. What is the major function of an antenna tuner (antenna coupler)?

• A. It matches the antenna system impedance to the transceiver's output impedance
• B. It allows an antenna to be used on both transmit and receive
• C. It automatically selects the proper antenna for the frequency band being used
• D. It helps a receiver automatically tune in weak stations

T4B11

5. Which of the following must be programmed into a D-STAR digital transceiver before transmitting?

• A. The codec type being used
• B. All these choices are correct
• C. Your output power
• D. Your call sign

T2C07

6. Which of the following is standard practice when you participate in a net?

• A. When first responding to the net control station, transmit your call sign, name, and address as in the FCC database
• B. Record the time of each of your transmissions
• C. All these choices are correct
• D. Unless you are reporting an emergency, transmit only when directed by the net control station

T2B04

7. Which of the following could be the reason you are unable to access a repeater whose output you can hear?

• A. You are using the wrong DCS code
• B. You are using the wrong CTCSS tone
• C. Improper transceiver offset
• D. All these choices are correct

T7C11

8. 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 has more loss per foot
• C. It requires special techniques to prevent moisture in the cable
• D. It cannot be used at below freezing temperatures

T7B02

9. What would cause a broadcast AM or FM radio to receive an amateur radio transmission unintentionally?

• A. The deviation of an FM transmitter is set too low
• B. The microphone gain of the transmitter is turned up too high
• C. The receiver is unable to reject strong signals outside the AM or FM band
• D. The audio amplifier of the transmitter is overloaded

T0C03

10. How does the allowable power density for RF safety change if duty cycle changes from 100 percent to 50 percent?

• A. There is no adjustment allowed for lower duty cycle
• B. It increases by a factor of 2
• C. It increases by a factor of 3
• D. It decreases by 50 percent

T4A07

11. Which of the following connections is made between a computer and a transceiver to use computer software when operating digital modes?

• A. Computer "line out" to transceiver push-to-talk
• B. Computer "line in" to transceiver speaker connector
• C. Computer "line in" to transceiver push-to-talk
• D. Computer "line out" to transceiver speaker connector

T0B04

12. Which of the following is an important safety precaution to observe when putting up an antenna tower?

• A. Wear a ground strap connected to your wrist at all times
• B. All these choices are correct
• C. Look for and stay clear of any overhead electrical wires
• D. Insulate the base of the tower to avoid lightning strikes

T1D01

13. With which countries are FCC-licensed amateur radio stations prohibited from exchanging communications?

• A. Any country banned from making such communications by the American Radio Relay League (ARRL)
• B. Any country whose administration has notified the International Telecommunication Union (ITU) that it objects to such communications
• C. Any country banned from such communications by the International Amateur Radio Union (IARU)
• D. Any country whose administration has notified the American Radio Relay League (ARRL) that it objects to such communications

T1F07

14. Which of the following restrictions apply when a non-licensed person is allowed to speak to a foreign station using a station under the control of a licensed amateur operator?

• A. All these choices are correct
• B. The licensed control operator must do the station identification
• C. The person must be a U.S. citizen
• D. The foreign station must be in a country with which the U.S. has a third party agreement

T0A07

15. Where should a lightning arrester be installed in a coaxial feed line?

• A. At the output connector of a transceiver
• B. At the antenna feed point
• C. At the ac power service panel
• D. On a grounded panel near where feed lines enter the building

T6D06

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

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

T5C08

17. What is the formula used to calculate electrical power (P) in a DC circuit?

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

T1C09

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

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

T2A06

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

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

T3B04

20. What is the velocity of a radio wave traveling through free space?

• A. Speed that increases as the frequency increases
• B. Speed of sound
• C. Speed inversely proportional to its wavelength
• D. Speed of light

T5D02

21. What formula is used to calculate voltage in a circuit?

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

T7A09

22. What is the function of the SSB/CW-FM switch on a VHF power amplifier?

• A. Change the frequency range of the amplifier to operate in the proper segment of the band
• B. Set the amplifier for proper operation in the selected mode
• C. Reduce the received signal noise
• D. Change the mode of the transmitted signal

T6C05

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

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

T8C01

24. Which of the following methods is used to locate sources of noise interference or jamming?

• A. Echolocation
• B. Phase locking
• C. Radio direction finding
• D. Doppler radar

T1A05

25. What proves that the FCC has issued an operator/primary license grant?

• A. A printed copy of the certificate of successful completion of examination
• B. All these choices are correct
• C. The license appears in the FCC ULS database
• D. An email notification from the NCVEC granting the license

T1B01

26. Which of the following frequency ranges are available for phone operation by Technician licensees?

• A. 28.100 MHz to 28.300 MHz
• B. 28.300 MHz to 28.500 MHz
• C. 28.050 MHz to 28.150 MHz
• D. 28.500 MHz to 28.600 MHz

T8D03

27. What kind of data can be transmitted by APRS?

• A. Weather data
• B. All these choices are correct
• C. GPS position data
• D. Text messages

T5B06

28. Which is equal to 3000 milliamperes?

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

T8B06

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

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

T6A02

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

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

T7D06

31. Which of the following can damage a multimeter?

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

T1E04

32. What determines the transmitting frequency privileges of an amateur station?

• A. The highest class of operator license held by anyone on the premises
• B. The class of operator license held by the control operator
• C. The frequencies printed on the license grant
• D. The frequency authorized by the frequency coordinator

T6B12

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

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

T5A07

34. Why are metals generally good conductors of electricity?

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

T3A02

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

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