Practice Exam

T0C04

1. What factors affect the RF exposure of people near an amateur station antenna?

• A. Frequency and power level of the RF field
• B. All these choices are correct
• C. Distance from the antenna to a person
• D. Radiation pattern of the antenna

T9A10

2. In which direction does a half-wave dipole antenna radiate the strongest signal?

• A. In the direction of the feed line
• B. Equally in all directions
• C. Broadside to the antenna
• D. Off the ends of the antenna

T0B08

3. Which is a proper grounding method for a tower?

• A. A connection between the tower base and a cold water pipe
• B. A ferrite-core RF choke connected between the tower and ground
• C. A single four-foot ground rod, driven into the ground no more than 12 inches from the base
• D. Separate eight-foot ground rods for each tower leg, bonded to the tower and each other

T1F10

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

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

T6B09

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

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

T4A12

6. 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 voice activated switching from receive to transmit
• D. A device for switching antennas from transmit to receive

T8B10

7. What is a LEO satellite?

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

T4B05

8. What does the scanning function of an FM transceiver do?

• A. Prevents interference to nearby repeaters
• B. Tunes through a range of frequencies to check for activity
• C. Checks incoming signal deviation
• D. Checks for messages left on a digital bulletin board

T6A08

9. What is the function of an SPDT switch?

• A. A single circuit is opened or closed
• B. Two circuits are each switched between one of two other circuits
• C. A single circuit is switched between one of two other circuits
• D. Two circuits are opened or closed

T1E01

10. When may an amateur station transmit without a control operator?

• A. When the transmitting station is an auxiliary station
• B. When using automatic control, such as in the case of a repeater
• C. When the station licensee is away and another licensed amateur is using the station
• D. Never

T7C05

11. Why do most solid-state transmitters reduce output power as SWR increases beyond a certain level?

• A. To lower the SWR on the transmission line
• B. To comply with FCC rules on spectral purity
• C. To protect the output amplifier transistors
• D. Because power supplies cannot supply enough current at high SWR

T0A09

12. What should be done to all external ground rods or earth connections?

• A. Tune them for resonance on the lowest frequency of operation
• B. Bond them together with heavy wire or conductive strap
• C. Keep them as far apart as possible
• D. Waterproof them with silicone caulk or electrical tape

T1C05

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

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

T1B04

14. Which amateur band includes 146.52 MHz?

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

T2C10

15. What information is contained in the preamble of a formal traffic message?

• A. The address of the intended recipient
• B. The email address of the originating station
• C. Information needed to track the message
• D. The telephone number of the addressee

T1D11

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

• A. When the transmissions are of a brief nature to make station adjustments
• B. When the transmitted power level is below 1 watt
• C. When the transmissions are unmodulated
• D. When transmitting signals to control model craft

T2A04

17. What is an appropriate way to call another station on a repeater if you know the other station's call sign?

• A. Say "CQ" three times, then the other station's call sign
• B. Wait for the station to call CQ, then answer
• C. Say the station's call sign, then identify with your call sign
• D. Say "break, break," then say the station's call sign

T7D06

18. Which of the following can damage a multimeter?

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

T6C07

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

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

T2B06

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

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

T5A02

21. Electrical power is measured in which of the following units?

• A. Amperes
• B. Watts
• C. Volts
• D. Watt-hours

T3B06

22. What is the formula for converting frequency to approximate wavelength in meters?

• A. Wavelength in meters equals frequency in hertz divided by 300
• B. Wavelength in meters equals 300 divided by frequency in megahertz
• C. Wavelength in meters equals frequency in hertz multiplied by 300
• D. Wavelength in meters equals frequency in megahertz divided by 300

T8D02

23. What is a "talkgroup" on a DMR repeater?

• A. A group of operators sharing common interests
• B. A protocol that increases the signal-to-noise ratio when multiple repeaters are linked together
• C. A way for groups of users to share a channel at different times without hearing other users on the channel
• D. A net that meets at a specified time

T3A05

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

T8C09

25. Which of the following protocols enables an amateur station to transmit through a repeater without using a radio to initiate the transmission?

• A. D-STAR
• B. IRLP
• C. DMR
• D. EchoLink

T7B11

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

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

T6D04

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

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

T3C09

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

T8A01

29. Which of the following is a form of amplitude modulation?

• A. Spread spectrum
• B. Packet radio
• C. Single sideband
• D. Phase shift keying (PSK)

T7A02

30. What is a transceiver?

• A. A device for matching feed line impedance to 50 ohms
• B. A device for converting receiver and transmitter frequencies to another band
• C. A device for automatically sending and decoding Morse code
• D. A device that combines a receiver and transmitter

T5B13

31. Which is equal to 2425 MHz?

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

T5D11

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

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

T1A05

33. What proves that the FCC has issued an operator/primary license grant?

• A. All these choices are correct
• B. An email notification from the NCVEC granting the license
• C. A printed copy of the certificate of successful completion of examination
• D. The license appears in the FCC ULS database

T9B01

34. What is a benefit of low SWR?

• A. Reduced signal loss
• B. Reduced television interference
• C. Less antenna wear
• D. All these choices are correct

T5C12

35. What is impedance?

• A. The power handling capability of a component
• B. The Q or Quality Factor of a component
• C. The opposition to AC current flow
• D. The inverse of resistance