Practice Exam

T7D11

1. Which of the following precautions should be taken when measuring in-circuit resistance with an ohmmeter?

• A. Ensure that the circuit is not powered
• B. Ensure that the circuit is grounded
• C. Ensure that the circuit is operating at the correct frequency
• D. Ensure that the applied voltages are correct

T3B09

2. What frequency range is referred to as UHF?

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

T1F02

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

T8A07

4. What is a characteristic of single sideband (SSB) compared to FM?

• A. SSB signals are less susceptible to interference
• B. SSB signals are easier to tune in correctly
• C. SSB signals have narrower bandwidth
• D. All these choices are correct

T5A04

5. What are the units of electrical resistance?

• A. Ohms
• B. Siemens
• C. Mhos
• D. Coulombs

T6C04

6. What is component 3 in figure T-1?

• A. Lamp
• B. Transistor
• C. Ground symbol
• D. Resistor

T1C10

7. How soon after passing the examination for your first amateur radio license may you transmit on the amateur radio bands?

• A. As soon as you receive your license in the mail from the FCC
• B. Immediately on receiving your Certificate of Successful Completion of Examination (CSCE)
• C. As soon as your operator/station license grant appears in the FCC's license database
• D. As soon as your operator/station license grant appears on the ARRL website

T1A09

8. Who selects a Frequency Coordinator?

• A. Amateur operators in a local or regional area whose stations are eligible to be repeater or auxiliary stations
• B. The FCC Office of Spectrum Management and Coordination Policy
• C. FCC Regional Field Office
• D. The local chapter of the Office of National Council of Independent Frequency Coordinators

T3C02

9. What is a characteristic of HF communication compared with communications on VHF and higher frequencies?

• A. HF antennas are generally smaller
• B. There is less atmospheric interference (static) on HF
• C. Long-distance ionospheric propagation is far more common on HF
• D. HF accommodates wider bandwidth signals

T3A08

10. What is a likely cause of irregular fading of signals propagated by the ionosphere?

• A. Intermodulation distortion
• B. Interference from thunderstorms
• C. Random combining of signals arriving via different paths
• D. Frequency shift due to Faraday rotation

T5D12

11. What is the voltage across a 10-ohm resistor if a current of 2 amperes flows through it?

• A. 8 volts
• B. 12 volts
• C. 20 volts
• D. 0.2 volts

T4A03

12. Why are short, heavy-gauge wires used for a transceiver's DC power connection?

• A. To avoid RF interference
• B. To minimize voltage drop when transmitting
• C. All these choices are correct
• D. To provide a good counterpoise for the antenna

T1B07

13. Which of the following VHF/UHF band segments are limited to CW only?

• A. All these choices are correct
• B. 50.0 MHz to 50.1 MHz and 144.0 MHz to 144.1 MHz
• C. 219 MHz to 220 MHz and 420.0 MHz to 420.1 MHz
• D. 902.0 MHz to 902.1 MHz

T0A03

14. In the United States, what circuit does black wire insulation indicate in a three-wire 120 V cable?

• A. Hot
• B. Equipment ground
• C. Neutral
• D. Black insulation is never used

T9A02

15. Which of the following describes a type of antenna loading?

• A. Electrically lengthening by inserting inductors in radiating elements
• B. Installing a spring in the base of a mobile vertical antenna to make it more flexible
• C. Strengthening the radiating elements of a beam antenna to better resist wind damage
• D. Inserting a resistor in the radiating portion of the antenna to make it resonant

T7B11

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

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

T5C08

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

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

T8D02

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

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

T7A05

19. What is the name of a circuit that generates a signal at a specific frequency?

• A. Reactance modulator
• B. Low-pass filter
• C. Oscillator
• D. Phase modulator

T5B08

20. Which is equal to 1,000,000 picofarads?

• A. 0.001 microfarads
• B. 1 microfarad
• C. 1,000,000,000 microfarads
• D. 1000 microfarads

T6D03

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

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

T4B09

22. How is a specific group of stations selected on a digital voice transceiver?

• A. By activating automatic identification
• B. By enabling the group's CTCSS tone
• C. By retrieving the frequencies from transceiver memory
• D. By entering the group's identification code

T2C05

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

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

T9B05

24. What happens as the frequency of a signal in coaxial cable is increased?

• A. The characteristic impedance increases
• B. The characteristic impedance decreases
• C. The loss decreases
• D. The loss increases

T7C02

25. Which of the following is used to determine if an antenna is resonant at the desired operating frequency?

• A. An antenna analyzer
• B. A VTVM
• C. A Q meter
• D. A frequency counter

T1D01

26. With which countries are FCC-licensed amateur radio stations prohibited from exchanging communications?

• A. Any country whose administration has notified the International Telecommunication Union (ITU) that it objects to such communications
• B. Any country whose administration has notified the American Radio Relay League (ARRL) that it objects to such communications
• C. Any country banned from making such communications by the American Radio Relay League (ARRL)
• D. Any country banned from such communications by the International Amateur Radio Union (IARU)

T8C07

27. What is Voice Over Internet Protocol (VoIP)?

• A. A technique for measuring the modulation quality of a transmitter using remote sites monitored via the internet
• B. A method of delivering voice communications over the internet using digital techniques
• C. A technique employed to "spot" DX stations via the internet
• D. A set of rules specifying how to identify your station when linked over the internet to another station

T0C03

28. 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. It increases by a factor of 3
• C. There is no adjustment allowed for lower duty cycle
• D. It increases by a factor of 2

T2A06

29. Which of the following is required when making on-the-air test transmissions?

• A. Identify the transmitting station
• B. All these choices are correct
• C. Conduct tests only between 10 p.m. and 6 a.m. local time
• D. Notify the FCC of the transmissions

T6B10

30. Which of the following can provide power gain?

• A. Reactor
• B. Transistor
• C. Resistor
• D. Transformer

T1E03

31. Who must designate the station control operator?

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

T0B01

32. Which of the following is good practice when installing ground wires on a tower for lightning protection?

• A. Make sure all ground wire bends are right angles
• B. All these choices are correct
• C. Put a drip loop in the ground connection to prevent water damage to the ground system
• D. Ensure that connections are short and direct

T2B13

33. What is the purpose of a squelch function?

• A. Mute the receiver audio when a signal is not present
• B. Eliminate parasitic oscillations in an RF amplifier
• C. Reduce interference from impulse noise
• D. Reduce a CW transmitter's key clicks

T8B08

34. What is meant by the statement that a satellite is operating in U/V mode?

• A. The satellite operates using ultraviolet frequencies
• B. The satellite uplink is in the 15 meter band and the downlink is in the 10 meter band
• C. The satellite uplink is in the 70 centimeter band and the downlink is in the 2 meter band
• D. The satellite frequencies are usually variable

T6A06

35. What type of electrical component stores energy in a magnetic field?

• A. Varistor
• B. Inductor
• C. Diode
• D. Capacitor