Practice Exam

T7D03

1. When configured to measure current, how is a multimeter connected to a component?

• A. In phase
• B. In parallel
• C. In series
• D. In quadrature

T5B10

2. Which decibel value most closely represents a power decrease from 12 watts to 3 watts?

• A. -9 dB
• B. -1 dB
• C. -3 dB
• D. -6 dB

T5C09

3. How much power is delivered by a voltage of 13.8 volts DC and a current of 10 amperes?

• A. 0.7 watts
• B. 138 watts
• C. 3.8 watts
• D. 23.8 watts

T1B04

4. Which amateur band includes 146.52 MHz?

• A. 20 meters
• B. 70 centimeters
• C. 6 meters
• D. 2 meters

T7C11

5. What is a disadvantage of air core coaxial cable when compared to foam or solid dielectric types?

• A. It cannot be used at below freezing temperatures
• B. It has more loss per foot
• C. It cannot be used for VHF or UHF antennas
• D. It requires special techniques to prevent moisture in the cable

T4A06

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

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

T1C08

7. What is the normal term for an FCC-issued amateur radio license?

• A. Ten years
• B. Eight years
• C. Five years
• D. Life

T5D05

8. What is the resistance of a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?

• A. 18 ohms
• B. 0.125 ohms
• C. 8 ohms
• D. 13.5 ohms

T3C04

9. Which of the following types of propagation is most commonly associated with occasional strong signals on the 10, 6, and 2 meter bands from beyond the radio horizon?

• A. D region absorption
• B. Sporadic E
• C. Backscatter
• D. Gray-line propagation

T9B06

10. Which of the following RF connector types is most suitable for frequencies above 400 MHz?

• A. UHF (PL-259/SO-239)
• B. Type N
• C. DB-25
• D. RS-213

T1D03

11. When is it permissible to transmit messages encoded to obscure their meaning?

• A. Only when transmitting control commands to space stations or radio control craft
• B. Only when transmitting certain approved digital codes
• C. Never
• D. Only during contests

T7A03

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

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

T8C01

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

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

T6A11

14. Which of the following battery chemistries is not rechargeable?

• A. Nickel-cadmium
• B. Lithium-ion
• C. Carbon-zinc
• D. Lead-acid

T1A07

15. What is the FCC Part 97 definition of a space station?

• A. A manned satellite orbiting Earth
• B. An amateur station located more than 50 km above Earth's surface
• C. An amateur station using amateur radio satellites for relay of signals
• D. Any satellite orbiting Earth

T1E08

16. Which of the following is an example of automatic control?

• A. Repeater operation
• B. Using a computer or other device to identify automatically
• C. Using a computer or other device to send CW automatically
• D. Controlling a station over the internet

T0A02

17. What health hazard is presented by electrical current flowing through the body?

• A. All these choices are correct
• B. It may cause involuntary muscle contractions
• C. It may cause injury by heating tissue
• D. It may disrupt the electrical functions of cells

T6B05

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

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

T2B04

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

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

T2C05

20. What does the term "traffic" refer to in net operation?

• A. Requests to activate the net by a served agency
• B. The number of stations checking in and out of a net
• C. Operation by mobile or portable stations
• D. Messages exchanged by net stations

T5A11

21. What type of current flow is opposed by resistance?

• A. Alternating current
• B. RF current
• C. All these choices are correct
• D. Direct current

T0C01

22. What type of radiation are radio signals?

• A. Ionizing radiation
• B. Non-ionizing radiation
• C. Alpha radiation
• D. Gamma radiation

T8D03

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

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

T6C07

24. What is component 8 in figure T-2?

• A. Inductor
• B. Resistor
• C. Regulator IC
• D. Light emitting diode

T9A09

25. What is the approximate length, in inches, of a half-wavelength 6 meter dipole antenna?

• A. 112
• B. 236
• C. 50
• D. 6

T8B10

26. What is a LEO satellite?

• A. A satellite in low energy operation mode
• B. A highly elliptical orbit satellite
• C. A sun synchronous satellite
• D. A satellite in low earth orbit

T3B02

27. What property of a radio wave defines its polarization?

• A. The orientation of the electric field
• B. The orientation of the magnetic field
• C. The ratio of the velocity to the wavelength
• D. The ratio of the energy in the magnetic field to the energy in the electric field

T6D11

28. Which of the following is a resonant or tuned circuit?

• A. A resistor circuit used for reducing standing wave ratio
• B. An inductor and a capacitor in series or parallel
• C. A linear voltage regulator
• D. A circuit designed to provide high-fidelity audio

T3A10

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

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

T2A11

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

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

T4B01

31. What is the effect of excessive microphone gain on SSB transmissions?

• A. Increased SWR
• B. Frequency instability
• C. All these choices are correct
• D. Distorted transmitted audio

T8A12

32. Which of the following is a disadvantage of FM compared with single sideband?

• A. FM signals are harder to tune
• B. Voice quality is poorer
• C. Only one signal can be received at a time
• D. All these choices are correct

T1F02

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

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

T0B11

34. Which of the following establishes grounding requirements for an amateur radio tower or antenna?

• A. FAA tower lighting regulations
• B. UL recommended practices
• C. Local electrical codes
• D. FCC Part 97 rules

T7B06

35. Which of the following actions should you take if a neighbor tells you that your station's transmissions are interfering with their radio or TV reception?

• A. All these choices are correct
• B. Immediately turn off your transmitter and contact the nearest FCC office for assistance
• C. Install a harmonic doubler on the output of your transmitter and tune it until the interference is eliminated
• D. Make sure that your station is functioning properly and that it does not cause interference to your own radio or television when it is tuned to the same channel