Practice Exam

T0A04

1. What is the purpose of a fuse in an electrical circuit?

• A. To remove power in case of overload
• B. All these choices are correct
• C. To prevent power supply ripple from damaging a component
• D. To limit current to prevent shocks

T8D11

2. What is an ARQ transmission system?

• A. A system used to encrypt command signals to an amateur radio satellite
• B. A special transmission format limited to video signals
• C. A method of compressing data using autonomous reiterative Q codes prior to final encoding
• D. An error correction method in which the receiving station detects errors and sends a request for retransmission

T7D07

3. Which of the following measurements are made using a multimeter?

• A. Impedance and reactance
• B. All these choices are correct
• C. Signal strength and noise
• D. Voltage and resistance

T9A12

4. What is an advantage of a 5/8 wavelength whip antenna for VHF or UHF mobile service?

• A. It radiates at a very high angle
• B. It eliminates distortion caused by reflected signals
• C. It has more gain than a 1/4-wavelength antenna
• D. It has 10 times the power gain of a 1/4 wavelength whip

T2C04

5. What is RACES?

• A. An emergency organization combining amateur radio and citizens band operators and frequencies
• B. An FCC part 97 amateur radio service for civil defense communications during national emergencies
• C. A radio contest held in a short period, sometimes called a "sprint"
• D. An international radio experimentation society

T7C03

6. What does a dummy load consist of?

• A. A non-inductive resistor mounted on a heat sink
• B. A low-voltage power supply and a DC relay
• C. A 50-ohm reactance used to terminate a transmission line
• D. A high-gain amplifier and a TR switch

T5B13

7. Which is equal to 2425 MHz?

• A. 0.002425 GHz
• B. 2425 GHz
• C. 24.25 GHz
• D. 2.425 GHz

T6B09

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

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

T8B06

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

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

T5C07

10. What is the abbreviation for megahertz?

• A. MHz
• B. mh
• C. MH
• D. Mhz

T6C10

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

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

T7B11

12. What is a symptom of RF feedback in a transmitter or transceiver?

• A. The transmitter will not stay on the desired frequency
• B. Reports of garbled, distorted, or unintelligible voice transmissions
• C. Frequent blowing of power supply fuses
• D. Excessive SWR at the antenna connection

T4A07

13. 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

T0C05

14. Why do exposure limits vary with frequency?

• A. The human body absorbs more RF energy at some frequencies than at others
• B. Lower frequency RF fields do not penetrate the human body
• C. Lower frequency RF fields have more energy than higher frequency fields
• D. Higher frequency RF fields are transient in nature

T1A04

15. How many operator/primary station license grants may be held by any one person?

• A. No more than two
• B. One for each band on which the person plans to operate
• C. One for each permanent station location from which the person plans to operate
• D. One

T1C05

16. Which of the following is a valid Technician class call sign format?

• A. KA1X
• B. All these choices are correct
• C. KF1XXX
• D. W1XX

T5D11

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

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

T1F09

18. What type of amateur station simultaneously retransmits the signal of another amateur station on a different channel or channels?

• A. Repeater station
• B. Earth station
• C. Message forwarding station
• D. Beacon station

T9B02

19. What is the most common impedance of coaxial cables used in amateur radio?

• A. 12 ohms
• B. 600 ohms
• C. 8 ohms
• D. 50 ohms

T5A05

20. What is the electrical term for the force that causes electron flow?

• A. Ampere-hours
• B. Voltage
• C. Capacitance
• D. Inductance

T0B06

21. What is the minimum safe distance from a power line to allow when installing an antenna?

• A. Enough so that if the antenna falls, no part of it can come closer than 10 feet to the power wires
• B. Add the height of the antenna to the height of the power line and multiply by a factor of 1.5
• C. The height of the power line above ground
• D. 1/2 wavelength at the operating frequency

T8C01

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

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

T2B03

23. Which of the following describes a linked repeater network?

• A. A system of repeaters linked by APRS
• B. A network of repeaters in which signals received by one repeater are transmitted by all the repeaters in the network
• C. A single repeater with more than one receiver
• D. Multiple repeaters with the same control operator

T7A03

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

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

T1B01

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

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

T3C07

26. What band is best suited for communicating via meteor scatter?

• A. 2 meters
• B. 70 centimeters
• C. 6 meters
• D. 33 centimeters

T4B06

27. 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 tone squelch
• D. The RIT or Clarifier

T6D02

28. What is a relay?

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

T3A12

29. What is the effect of fog and rain on signals in the 10 meter and 6 meter bands?

• A. Deflection
• B. Range increase
• C. Absorption
• D. There is little effect

T6A02

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

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

T8A03

31. Which type of voice mode is often used for long-distance (weak signal) contacts on the VHF and UHF bands?

• A. SSB
• B. PM
• C. FM
• D. DRM

T1D09

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

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

T2A11

33. What term describes an amateur station that is transmitting and receiving on the same frequency?

• A. Simplex
• B. Diplex
• C. Multiplex
• D. Full duplex

T3B01

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

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

T1E04

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

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