Practice Exam

T1E01

1. When may an amateur station transmit without a control operator?

• A. When the station licensee is away and another licensed amateur is using the station
• B. Never
• C. When using automatic control, such as in the case of a repeater
• D. When the transmitting station is an auxiliary station

T3A04

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

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

T3B01

3. What is the relationship between the electric and magnetic fields of an electromagnetic wave?

• A. They revolve in opposite directions
• B. They are in parallel
• C. They are at right angles
• D. They travel at different speeds

T7C03

4. What does a typical RF dummy load consist of?

• A. A low-voltage power supply and an AC relay
• B. A low-voltage power supply and a DC relay
• C. A 50-ohm non-inductive resistor mounted on a heat sink
• D. A 50-ohm inductive reactance mounted in a shielded enclosure

T9B01

5. Which of the following connectors should be carefully taped for weather protection when used outdoors?

• A. BNC
• B. Type N
• C. All these choices are correct
• D. PL259

T5C07

6. What is the abbreviation for megahertz?

• A. MHz
• B. mHz
• C. mHZ
• D. Mhz

T6D08

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

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

T1A07

8. 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

T8B11

9. Who is permitted to receive telemetry from an amateur radio satellite?

• A. Anyone
• B. Only the satellite control operator
• C. Only a licensed radio amateur who has received the encryption key from AMSAT
• D. Only the control operator or a licensed radio amateur who has received the encryption key from the control operator

T7D04

10. Which instrument is used to measure electric current?

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

T6A02

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

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

T2C10

12. What information is contained in the preamble of a formal traffic message?

• A. The address of the intended recipient
• B. The telephone number of the addressee
• C. Information needed to track the message
• D. The email address of the originating station

T8D01

13. Which of the following is a digital communications mode?

• A. IEEE 802.11
• B. All these choices are correct
• C. FT8
• D. Packet radio

T6B09

14. What are the names for the electrodes of a diode?

• A. Gate and base
• B. Plus and minus
• C. Source and drain
• D. Anode and cathode

T0A08

15. Where should a fuse or circuit breaker be installed in a 120V AC power circuit?

• A. In series with the hot and neutral conductors
• B. In parallel with the hot conductor only
• C. In series with the hot conductor only
• D. In parallel with the hot and neutral conductors

T5A01

16. Electrical current is measured in which of the following units?

• A. Watts
• B. Amperes
• C. Ohms
• D. Volts

T1B03

17. Which frequency is in the 6-meter amateur band?

• A. 52.525 MHz
• B. 49.00 MHz
• C. 222.15 MHz
• D. 28.50 MHz

T8C09

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

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

T5B11

19. Which decibel value represents a power increase from 20 watts to 200 watts?

• A. 18 dB
• B. 10 dB
• C. 12 dB
• D. 28 dB

T7B07

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

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

T1C11

21. 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

T7A02

22. What is a transceiver?

• A. A device that combines a receiver and transmitter
• B. A device for matching feed line impedance to 50 ohms
• C. A device for converting receiver and transmitter frequencies to another band
• D. A device for automatically sending and decoding Morse code

T1F05

23. What method of call sign identification is required for a station transmitting phone signals?

• A. Send the call sign using a CW or phone emission
• B. Send the call sign followed by the indicator RPT
• C. Send the call sign using only a phone emission
• D. Send the call sign followed by the indicator R

T0C04

24. What factors affect the RF exposure of people near an amateur station antenna?

• A. Distance from the antenna to a person
• B. Radiation pattern of the antenna
• C. Frequency and power level of the RF field
• D. All these choices are correct

T3C02

25. What is a characteristic of HF communication compared with communications on VHF and higher frequencies?

• A. There is less atmospheric interference (static) on HF
• B. Long-distance ionospheric propagation is far more common on HF
• C. HF accommodates wider bandwidth signals
• D. HF antennas are generally smaller

T1D08

26. In which of the following circumstances may the control operator of an amateur station receive compensation for operating that station?

• A. When the communication is made to obtain emergency information for a local broadcast station
• B. When the communication is related to the sale of amateur equipment by the control operator's employer
• C. When the communication is a part of classroom instruction at an educational institution
• D. All these choices are correct

T6C08

27. What is component 9 in figure T-2?

• A. Variable resistor
• B. Variable inductor
• C. Variable transformer
• D. Variable capacitor

T4B06

28. Which of the following controls could be used if the voice pitch of a single-sideband signal returning to your CQ call seems too high or low?

• A. The bandwidth selection
• B. The AGC or limiter
• C. The RIT or Clarifier
• D. The tone squelch

T0B03

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

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

T2B07

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

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

T9A05

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

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

T5D13

32. In which type of circuit is the current always the same through all components?

• A. Branch
• B. Parallel
• C. Resonant
• D. Series

T8A04

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

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

T4A11

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

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

T2A07

35. What does the term "repeater offset" mean?

• A. The fee charged by the repeater owner or club to provide for maintenance
• B. The approximately half-second delay to allow for the "squelch tail" to be removed
• C. The repeater has a time delay to prevent interference
• D. The difference between a repeater's transmit and receive frequencies