Practice Exam

T7D01

1. Which instrument would you use to measure electric potential?

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

T2B05

2. Which of the following would cause your FM transmission audio to drop out on voice peaks?

• A. Your repeater offset is inverted
• B. You are talking too loudly
• C. Your transmit power is too high
• D. Your FM deviation is too low

T8D03

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

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

T5D08

4. What is the current through a 100-ohm resistor connected across 200 volts?

• A. 0.5 amperes
• B. 20,000 amperes
• C. 100 amperes
• D. 2 amperes

T7B02

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

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

T6C11

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

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

T4B02

7. Which of the following can be used to enter a transceiver's operating frequency?

• A. The Automatic Frequency Control
• B. The keypad or VFO knob
• C. The CTCSS or DTMF encoder
• D. All these choices are correct

T6B05

8. What type of transistor has a gate, drain, and source?

• A. Hall-effect
• B. Bipolar junction
• C. Varistor
• D. Field-effect

T8C01

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

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

T1A08

10. Who recommends transmit/receive channels for repeater and auxiliary stations?

• A. The International Telecommunication Union
• B. A Volunteer Frequency Coordinator recognized by local amateurs
• C. A Frequency Spectrum Manager appointed by the FCC
• D. An FCC Regional Field Office

T0B07

11. Which of the following is an important safety rule to remember when using a crank-up tower?

• A. This type of tower must never be grounded
• B. This type of tower must never be painted
• C. All these choices are correct
• D. This type of tower must not be climbed unless it is retracted, or mechanical safety locking devices have been installed

T3A10

12. What effect does multi-path propagation have on data transmissions?

• A. Transmission rates must be increased by a factor equal to the number of separate paths observed
• B. Error rates are likely to increase
• C. Transmission rates must be decreased by a factor equal to the number of separate paths observed
• D. No significant changes will occur if the signals are transmitted using FM

T2C01

13. When do the FCC Part 97 Amateur Radio Service rules NOT apply to the operation of an amateur station?

• A. FCC rules always apply
• B. When operating under ARES rules
• C. When operating under RACES rules
• D. When operating under FEMA rules

T4A06

14. What signals are used in a computer-radio interface for digital mode operation?

• A. Receive and transmit mode, status, and location
• B. Receive audio, transmit audio, and transmitter keying
• C. Antenna and RF power
• D. NMEA GPS location and DC power

T7C01

15. What is the primary purpose of a dummy load?

• A. To prevent over-modulation of a transmitter
• B. To prevent transmitting signals over the air when making tests
• C. To improve the efficiency of an antenna
• D. To improve the signal-to-noise ratio of a receiver

T9A01

16. What is a beam antenna?

• A. An antenna that concentrates signals in one direction
• B. An antenna built from square aluminum beams
• C. An antenna that focuses the signal into two intense rays
• D. An omnidirectional antenna invented by Clarence Beam

T8A07

17. What is one characteristic of single sideband (SSB) compared to FM?

• A. SSB signals are less susceptible to interference
• B. SSB signals have narrower bandwidth
• C. SSB signals are easier to tune in correctly
• D. SSB signals are less susceptible to high SWR

T1C07

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

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

T6D04

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

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

T1B01

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

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

T8B05

21. What is a satellite beacon?

• A. A reflective surface on the satellite
• B. An indicator light that shows where to point your antenna
• C. A transmission from a satellite that contains status information
• D. The primary transmit antenna on the satellite

T7A08

22. Which of the following describes combining speech with an RF carrier signal?

• A. Low-pass filtering
• B. Impedance matching
• C. Modulation
• D. Oscillation

T0C03

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

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

T1F02

24. How often must you identify with your FCC-assigned call sign when using tactical call signs such as "Race Headquarters"?

• A. Once every hour
• B. At least every 10 minutes during and at the end of a communication
• C. Never, the tactical call is sufficient
• D. At the end of every transmission

T5C01

25. What describes the ability to store energy in an electric field?

• A. Frequency
• B. Capacitance
• C. Inductance
• D. Resistance

T5A09

26. Which of the following describes alternating current?

• A. Current that alternates between positive and negative directions
• B. Current that alternates between a positive direction and zero
• C. All these answers are correct
• D. Current that alternates between a negative direction and zero

T1D07

27. Which of the following is an example of an auxiliary station?

• A. A station used in the Military Auxiliary Radio System for linking government and amateur stations in a digital network
• B. A backup radio for emergency use in case the main station radio fails
• C. A station sending one-way transmissions between a remote repeater receiver and the main repeater transmitter
• D. A second station utilized in multi-operator contest stations

T1E02

28. Who may be the control operator of a station communicating through an amateur satellite or space station?

• A. Only an Amateur Extra Class operator
• B. Any amateur allowed to transmit on the satellite uplink frequency
• C. Only an Amateur Extra Class operator who is also an AMSAT member
• D. A General class or higher licensee with a satellite operator certification

T3B09

29. What frequency range is referred to as UHF?

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

T9B11

30. Which of the following types of feed line has the lowest loss?

• A. 75-ohm flexible coax
• B. Air-insulated hardline
• C. 50-ohm flexible coax
• D. Multi-conductor unbalanced cable

T2A11

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

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

T6A09

32. What type of switch is represented by component 3 in figure T-2?

• A. Double-pole double-throw
• B. Single-pole single-throw
• C. Double-pole single-throw
• D. Single-pole double-throw

T5B13

33. Which is equal to 2425 MHz?

• A. 0.002425 GHz
• B. 24.25 GHz
• C. 2.425 GHz
• D. 242.5 GHz

T0A04

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

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

T3C05

35. Which of the following effects may allow radio signals to travel beyond obstructions between the transmitting and receiving stations?

• A. Quantum tunneling
• B. Knife-edge diffraction
• C. Doppler shift
• D. Faraday rotation