Practice Exam

T3B01

1. 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 are at right angles
• D. They revolve in opposite directions

T1E03

2. Who must designate the station control operator?

• A. The frequency coordinator
• B. Any licensed operator
• C. The FCC
• D. The station licensee

T2C05

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

• A. A count of the number of activations of the net each month
• B. Operation by mobile or portable stations
• C. Formal messages exchanged by net stations
• D. The number of stations checking in and out of a net

T4B06

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

T9B07

5. Which of the following is true of PL-259 type coax connectors?

• A. They are preferred for microwave operation
• B. They are commonly used at HF and VHF frequencies
• C. They are a bayonet-type connector
• D. They are watertight

T3A09

6. Which of the following results from the fact that signals propagated by the ionosphere are elliptically polarized?

• A. Both the transmitting and receiving antennas must be of the same polarization
• B. Either vertically or horizontally polarized antennas may be used for transmission or reception
• C. Digital modes are unusable
• D. FM voice is unusable

T8C02

7. Which of these items would be useful for a hidden transmitter hunt?

• A. A directional antenna
• B. All these choices are correct
• C. A directional wattmeter
• D. Calibrated SWR meter

T8A10

8. What is the approximate bandwidth of AM fast-scan TV transmissions?

• A. More than 10 MHz
• B. About 6 MHz
• C. About 3 MHz
• D. About 1 MHz

T1D11

9. When may an amateur station transmit without identifying on the air?

• A. When the transmitted power level is below 0.1 watt
• B. When the transmissions are of a brief nature to make station adjustments
• C. When the transmissions are unmodulated
• D. When transmitting signals to control model craft

T0B06

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

• A. 1/2 wavelength at the operating frequency
• 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. Enough so that if the antenna falls, no part of it can come within 10 feet of the power wires

T1C01

11. For which classes of amateur radio licenses does the FCC currently issue new licenses?

• A. Novice, Technician, General, Amateur Extra
• B. Technician, Technician Plus, General, Amateur Extra
• C. Technician, General, Amateur Extra
• D. Novice, Technician Plus, General, Advanced

T6D03

12. Which of the following is a reason to use shielded wire?

• A. To prevent coupling of unwanted signals to or from the wire
• B. To reduce receiver overload
• C. To decrease the resistance of DC power connections
• D. To increase the current carrying capability of the wire

T5A06

13. What is the unit of frequency?

• A. Hertz
• B. Epicycles per second
• C. Henry
• D. Farad

T0C11

14. What is the definition of duty cycle during the averaging time for RF exposure?

• A. The difference between the PEP and the average power output of a transmitter
• B. The difference between the lowest and highest power output of a transmitter
• C. The percentage of time that a transmitter is transmitting
• D. The percentage of time that a transmitter is not transmitting

T1B06

15. On which HF bands does a Technician class operator have phone privileges?

• A. 30-meter band only
• B. 80-meter, 40-meter, 15-meter, and 10-meter bands
• C. 10-meter band only
• D. None

T5C08

16. What formula is used to calculate electrical power (P) in a DC circuit?

• A. P = I x E
• B. P = I / E
• C. P = E / I
• D. P = I2 x E

T9A06

17. Which of the following types of antennas offers the greatest gain?

• A. Isotropic
• B. 5/8 wave vertical
• C. J pole
• D. Yagi

T6A10

18. Which of the following battery chemistries is rechargeable?

• A. All these choices are correct
• B. Lead-acid
• C. Lithium-ion
• D. Nickel-metal hydride

T7D08

19. Which of the following types of solder should not be used for radio and electronic applications?

• A. Rosin-core solder
• B. Acid-core solder
• C. Lead-tin solder
• D. Tin-copper solder

T0A01

20. Which of the following is a safety hazard of a 12-volt storage battery that lacks internal protection circuitry?

• A. RF emissions from a nearby transmitter can cause the electrolyte to emit poison gas
• B. Shorting the terminals can cause burns, fire, or an explosion
• C. Touching both terminals with your hands can cause electrical shock
• D. All these choices are correct

T3C09

21. What is generally the best time for long-distance 10-meter band propagation via the F region?

• A. From shortly after sunset to dawn during periods of high sunspot activity
• B. From dawn to shortly after sunset during periods of low sunspot activity
• C. From shortly after sunset to dawn during periods of low sunspot activity
• D. From dawn to shortly after sunset during periods of high sunspot activity

T1A01

22. Which of the following is part of the Basis and Purpose of the Amateur Radio Service?

• A. All these choices are correct
• B. Advancing skills in the technical and communication phases of the radio art
• C. Providing personal radio communications for as many citizens as possible
• D. Providing communications for international contesting

T5B04

23. Which is equal to one microvolt?

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

T7A04

24. Which term describes the ability of a receiver to discriminate between multiple signals?

• A. Sensitivity
• B. Discrimination ratio
• C. Selectivity
• D. Harmonic distortion

T7B01

25. What can you do if you are told your FM handheld or mobile transceiver is over-deviating?

• A. Change to a higher power level
• B. Talk louder into the microphone
• C. Talk farther away from the microphone
• D. Let the transceiver cool off

T2B12

26. What is the digital color code used on DMR repeater systems?

• A. A code transmitted by the repeater to indicate health and status of the equipment
• B. A code which automatically programs the repeater offset to a frequency chosen by the user
• C. A code which identifies the specific CODEC being used so that the repeater can properly decode the audio
• D. An access code which must be programmed into a DMR transmitter to access a specific repeater

T6C07

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

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

T5D09

28. What is the current through a 24-ohm resistor connected across 240 volts?

• A. 2400 amperes
• B. 10 amperes
• C. 0.1 amperes
• D. 5760 amperes

T2A07

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

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

T8B02

30. What is the impact of using excessive effective radiated power on a satellite uplink?

• A. Possibility of rebooting the satellite control computer
• B. Overloading the satellite batteries
• C. Possibility of commanding the satellite to an improper mode
• D. Blocking access by other users

T8D06

31. What does the abbreviation "PSK" mean?

• A. Power Sampled Keying
• B. Packet Sampled Keying
• C. Phase Shift Keying
• D. Pulse Shift Keying

T4A12

32. What is an electronic keyer?

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

T1F03

33. When are you required to transmit your assigned call sign?

• A. At the beginning of each contact, and every 10 minutes thereafter
• B. At least every 15 minutes during and at the end of a communication
• C. At least every 10 minutes during and at the end of a communication
• D. At least once during each transmission

T7C06

34. What does an SWR reading of 4:1 indicate?

• A. Gain of +4 dB
• B. Good impedance match
• C. Loss of -4 dB
• D. Impedance mismatch

T6B09

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

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