Practice Exam

T8A04

1. Which type of modulation is commonly used for VHF and UHF voice repeaters?

• A. PSK
• B. AM
• C. FM or PM
• D. SSB

T3B10

2. What frequency range is referred to as HF?

• A. 30 to 300 MHz
• B. 300 to 3000 MHz
• C. 3 to 30 MHz
• D. 300 to 3000 kHz

T9A06

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

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

T5D11

4. What is the voltage across a 10-ohm resistor if a current of 1 ampere flows through it?

• A. 10 volts
• B. 1 volt
• C. 9 volts
• D. 11 volts

T2B07

5. How can you join a digital repeater's "talkgroup"?

• A. Register with the local Frequency Coordinator
• B. Program your radio with the DTMF tone used by the talkgroup
• C. Program your radio with the group's ID or code
• D. Register with the digital repeater control operator

T4A11

6. Where should the negative power return of a mobile transceiver be connected in a vehicle?

• A. At the 12-volt battery chassis ground
• B. To the shell of the power connector
• C. Through the transceiver's mounting bracket
• D. To any metal part of the vehicle

T7A04

7. Which term describes the ability of a receiver to discriminate between multiple signals?

• A. Selectivity
• B. Harmonic distortion
• C. Discrimination ratio
• D. Sensitivity

T3A04

8. What is the effect of antenna cross-polarization over a line-of-sight VHF or UHF path?

• A. Signals have an echo effect
• B. Nothing significant will happen
• C. Modulation sidebands might become inverted
• D. Received signal strength is reduced

T2A04

9. What is an appropriate way to call another station on a repeater if you know the other station's call sign?

• A. Say "break, break," then the other station's call sign, followed by your call sign
• B. Say the station's call sign, then identify with your call sign
• C. Wait for the station to call CQ, then answer with your call sign
• D. Say "CQ" three times, then the other station's call sign, followed by your call sign

T0B10

10. Which of the following is true when installing grounding conductors used for lightning protection?

• A. Wires must be carefully routed with precise right-angle bends
• B. Common grounds must be avoided
• C. Sharp bends must be avoided
• D. Use only non-insulated wire

T6C11

11. What is component 4 in figure T-3?

• A. Transmitter
• B. Dummy load
• C. Ground
• D. Antenna

T1A07

12. 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. An amateur station using amateur radio satellites for relay of signals
• C. Any satellite orbiting Earth
• D. A manned satellite orbiting Earth

T0A10

13. What hazard exists when rapidly charging or discharging an unprotected battery?

• A. Excess output ripple
• B. Overvoltage
• C. Overheating or out-gassing
• D. Electric shock

T0C08

14. Which of the following actions can reduce exposure to RF radiation?

• A. Relocate the transmitter
• B. Increase the duty cycle
• C. Relocate antennas
• D. All these choices are correct

T1F01

15. When must the station licensee make the station and the station records available for inspection?

• A. Only when presented with a valid warrant by an FCC official or government agent
• B. At any time after a written notification by the FCC of such inspection
• C. At any time upon request by an FCC representative
• D. At any time ten days after notification by the FCC of such an inspection

T8D12

16. Which of the following best describes an amateur radio mesh network?

• A. A wide-bandwidth digital voice mode employing DMR protocols
• B. An amateur-radio data network using commercial Wi-Fi equipment with modified firmware
• C. An internet linking protocol allowing communication through repeaters around the world
• D. An amateur-radio satellite communications network using modified commercial satellite TV hardware

T3C01

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

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

T5C12

18. What is impedance?

• A. The power handling capability of a component
• B. The inverse of reactance
• C. The opposition to AC current flow
• D. The inverse of resistance

T7B05

19. Which of the following might reduce interference by an amateur station to a non-amateur over-the-air radio receiver?

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

T8C05

20. What is a grid locator?

• A. An instrument for radio direction finding
• B. A letter-number designator assigned to a geographic location
• C. An instrument for locating faults in power amplifiers
• D. A letter-number designator assigned to an azimuth and elevation

T4B04

21. What does an FM signal sound like when received slightly off frequency?

• A. The audio increases in pitch
• B. The audio becomes distorted
• C. The audio decrease in pitch
• D. There is no effect except for reduction in amplitude

T1E04

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

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

T6A04

23. What electrical component stores energy in an electric field?

• A. Inductor
• B. Capacitor
• C. Diode
• D. Resistor

T5A10

24. Which term describes the rate at which electrical energy is used?

• A. Current
• B. Power
• C. Voltage
• D. Resistance

T2C12

25. Which of the following requires certification by a civil defense agency?

• A. SKYWARN
• B. MARS
• C. RACES
• D. ARES

T7D05

26. How does an ohmmeter measure the resistance of a circuit or component?

• A. By applying a variable voltage and measuring the resulting current change
• B. By placing a variable resistor in parallel with the circuit
• C. By placing a variable resistor in series with the circuit
• D. By applying a small current and measuring the resulting voltage

T6D08

27. Which of the following is combined with an inductor to make a resonant circuit?

• A. Resistor
• B. Potentiometer
• C. Capacitor
• D. Zener diode

T1C07

28. How long before the expiration date may an amateur radio license renewal be requested?

• A. 1 year
• B. 90 days
• C. 30 days
• D. 6 months

T7C08

29. Which instrument can be used to determine SWR?

• A. Directional wattmeter
• B. Iambic pentameter
• C. Voltmeter
• D. Ohmmeter

T1B07

30. Which of the following VHF/UHF band segments are limited to CW only?

• A. 219 MHz to 220 MHz and 420.0 MHz to 420.1 MHz
• B. 50.0 MHz to 50.1 MHz and 144.0 MHz to 144.1 MHz
• C. All these choices are correct
• D. 902.0 MHz to 902.1 MHz

T5B04

31. Which is equal to one microvolt?

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

T6B06

32. How is the cathode lead of a semiconductor diode often marked on the package?

• A. With a stripe
• B. With the word "cathode"
• C. With the letter C
• D. With the letter K

T9B03

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

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

T1D10

34. How does the FCC define broadcasting for the Amateur Radio Service?

• A. Transmission of messages directed only to amateur operators
• B. Two-way transmissions by amateur stations
• C. Transmissions intended for reception by the general public
• D. Any transmission made by the licensed station

T8B02

35. What is the impact of using excessive effective radiated power on a satellite uplink?

• A. Overloading the satellite batteries
• B. Blocking access by other users
• C. Possibility of rebooting the satellite control computer
• D. Possibility of commanding the satellite to an improper mode