Practice Exam

T7A01

1. Which term describes the ability of a receiver to detect the presence of a signal?

• A. Linearity
• B. Sensitivity
• C. Selectivity
• D. Total Harmonic Distortion

T3A05

2. When using a directional antenna, how might your station be able to communicate with a distant repeater if buildings or obstructions are blocking the direct line of sight path?

• A. Increase the antenna SWR
• B. Try to find a path that reflects signals to the repeater
• C. Try the long path
• D. Change from vertical to horizontal polarization

T1C11

3. 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 one year
• B. Yes, for up to two years
• C. No, you must wait until the license has been renewed
• D. Yes, as soon as you apply for renewal

T0B03

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

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

T3B02

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

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

T8D07

6. Which of the following describes DMR?

• A. An automatic position tracking mode for FM mobiles communicating through repeaters
• B. A digital technique for transmitting on two repeater inputs simultaneously for automatic error correction
• C. A technique for time-multiplexing two digital voice signals on a single 12.5 kHz repeater channel
• D. An automatic computer logging technique for hands-off logging when communicating while operating a vehicle

T2A12

7. What should you do before calling CQ?

• A. Make sure you are authorized to use that frequency
• B. All these choices are correct
• C. Listen first to be sure that no one else is using the frequency
• D. Ask if the frequency is in use

T2C06

8. What is the Amateur Radio Emergency Service (ARES)?

• A. A training program that certifies amateur operators for membership in the Radio Amateur Civil Emergency Service
• B. A group of licensed amateurs who are members of the military and who voluntarily agreed to provide message handling services in the case of an emergency
• C. A training program that provides licensing courses for those interested in obtaining an amateur license to use during emergencies
• D. A group of licensed amateurs who have voluntarily registered their qualifications and equipment for communications duty in the public service

T6A11

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

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

T6B02

10. What electronic component allows current to flow in only one direction?

• A. Fuse
• B. Resistor
• C. Driven element
• D. Diode

T2B06

11. What type of signaling uses pairs of audio tones?

• A. D-STAR
• B. GPRS
• C. CTCSS
• D. DTMF

T6D10

12. What is the function of component 2 in figure T-1?

• A. Convert electrical energy into radio waves
• B. Supply electrical energy
• C. Give off light when current flows through it
• D. Control the flow of current

T6C08

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

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

T9A08

14. What is the approximate length, in inches, of a quarter-wavelength vertical antenna for 146 MHz?

• A. 12
• B. 19
• C. 112
• D. 50

T1B03

15. Which frequency is in the 6 meter amateur band?

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

T7B08

16. What should you do if something in a neighbor's home is causing harmful interference to your amateur station?

• A. Work with your neighbor to identify the offending device
• B. Make sure your station meets the standards of good amateur practice
• C. All these choices are correct
• D. Politely inform your neighbor that FCC rules prohibit the use of devices that cause interference

T8C11

17. What is an amateur radio station that connects other amateur stations to the internet?

• A. A repeater
• B. A gateway
• C. A digipeater
• D. A beacon

T8A06

18. Which sideband is normally used for 10 meter HF, VHF, and UHF single-sideband communications?

• A. Lower sideband
• B. Suppressed sideband
• C. Upper sideband
• D. Inverted sideband

T8B10

19. 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

T4B01

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

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

T7C07

21. What happens to power lost in a feed line?

• A. It distorts the signal
• B. It is converted into heat
• C. It increases the SWR
• D. It is radiated as harmonics

T5A06

22. What is the unit of frequency?

• A. Henry
• B. Farad
• C. Hertz
• D. Tesla

T5C03

23. What describes the ability to store energy in a magnetic field?

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

T9B09

24. What can cause erratic changes in SWR?

• A. Loose connection in the antenna or feed line
• B. Over-modulation
• C. Overload from a strong local station
• D. Local thunderstorm

T7D06

25. Which of the following can damage a multimeter?

• A. Failing to connect one of the probes to ground
• B. Attempting to measure voltage when using the resistance setting
• C. Not allowing it to warm up properly
• D. Attempting to measure resistance using the voltage setting

T5D01

26. What formula is used to calculate current in a circuit?

• A. I = E - R
• B. I = E + R
• C. I = E / R
• D. I = E * R

T0C06

27. Which of the following is an acceptable method to determine whether your station complies with FCC RF exposure regulations?

• A. By calculation based on computer modeling
• B. By calculation based on FCC OET Bulletin 65
• C. By measurement of field strength using calibrated equipment
• D. All these choices are correct

T3C10

28. Which of the following bands may provide long-distance communications via the ionosphere's F region during the peak of the sunspot cycle?

• A. 23 centimeters
• B. All these choices are correct
• C. 70 centimeters and 1.25 meters
• D. 6 and 10 meters

T5B04

29. Which is equal to one microvolt?

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

T4A12

30. What is an electronic keyer?

• A. A device that assists in manual sending of Morse code
• B. An interlock to prevent unauthorized use of a radio
• C. A device for switching antennas from transmit to receive
• D. A device for voice activated switching from receive to transmit

T0A08

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

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

T1A04

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

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

T1D03

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

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

T1E04

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

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

T1F10

35. Who is accountable if a repeater inadvertently retransmits communications that violate the FCC rules?

• A. The control operator of the repeater
• B. The owner of the repeater
• C. Both the originating station and the repeater owner
• D. The control operator of the originating station