Practice Exam

T3C01

1. Why are simplex UHF signals rarely heard beyond their radio horizon?

• A. They are too weak to go very far
• B. UHF signals are absorbed by the ionospheric D region
• C. FCC regulations prohibit them from going more than 50 miles
• D. UHF signals are usually not propagated by the ionosphere

T4A02

2. Which of the following should be considered when selecting an accessory SWR meter?

• A. The ability of the meter to compensate for a poor transmission line match to the antenna
• B. The maximum SWR anticipated on the transmission line
• C. The distance that the meter will be located from the antenna
• D. The frequency and power level at which the measurements will be made

T6B07

3. What causes a light-emitting diode (LED) to emit light?

• A. Inductively-coupled RF signal
• B. Reverse current
• C. Forward current
• D. Capacitively-coupled RF signal

T8C01

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

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

T7D08

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

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

T4B06

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

T6D08

7. Which of the following is combined with an inductor to make a resonant circuit?

• A. Zener diode
• B. Capacitor
• C. Potentiometer
• D. Resistor

T9A07

8. What is a potential drawback of using a handheld VHF transceiver inside a vehicle that lacks an externally mounted antenna?

• A. The handheld will overheat due to reflected power in the vehicle
• B. The SWR might decrease, decreasing the signal strength
• C. The bandwidth of the antenna will decrease, increasing SWR
• D. Signal strength is reduced due to the shielding effect of the vehicle

T5D03

9. What formula is used to calculate resistance in a circuit?

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

T0B08

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

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

T1F11

11. Which of the following is a requirement for the issuance of a club station license grant?

• A. The trustee must have an Amateur Extra Class operator license grant
• B. The club must have at least four members
• C. All these choices are correct
• D. The club must be registered with the American Radio Relay League (ARRL)

T2B12

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

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

T5C12

13. What is impedance?

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

T7A04

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

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

T1E01

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

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

T1A11

16. Which of the following is prohibited?

• A. International communications on VHF bands and higher frequencies
• B. All these choices are correct
• C. Third-party traffic using digital modes
• D. Willful or malicious interference

T7C10

17. Why should the outer jacket of coaxial cable be resistant to ultraviolet light?

• A. Ultraviolet light can increase the resistance of the conductors
• B. Ultraviolet light can increase losses in the cable's jacket
• C. Ultraviolet light can damage the jacket and allow water to enter the cable
• D. Ultraviolet and RF signals can mix, causing interference

T9B05

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

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

T5A05

19. A difference in which of the following causes electron flow?

• A. Inductance
• B. Capacitance
• C. Voltage
• D. Ampere-hours

T6A09

20. What type of switch is represented by component 3 in figure T-2?

• A. Single-pole single-throw
• B. Double-pole single-throw
• C. Double-pole double-throw
• D. Single-pole double-throw

T0C12

21. How does RF radiation differ from ionizing radiation (radioactivity)?

• A. RF radiation does not have sufficient energy to cause chemical changes in cells and damage DNA
• B. RF radiation is limited in range to a few feet
• C. RF radiation is perfectly safe
• D. RF radiation can only be detected with an RF dosimeter

T2A09

22. Which of the following is a customary way to indicate a station is listening on a repeater and looking for a contact?

• A. "CQ CQ" followed by the repeater's call sign
• B. "QSY" followed by your call sign
• C. The station's call sign followed by the word "listening"
• D. The repeater's call sign followed by the station's call sign

T0A10

23. What hazard exists when rapidly charging or discharging an unprotected battery?

• A. Overheating or out-gassing
• B. Excess output ripple
• C. Overvoltage
• D. Electric shock

T5B09

24. Which decibel value most closely represents a power increase from 5 watts to 10 watts?

• A. 5 dB
• B. 2 dB
• C. 10 dB
• D. 3 dB

T2C06

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

• A. A training program that provides licensing courses for those interested in obtaining an amateur license to use during emergencies
• 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 certifies amateur operators for membership in the Radio Amateur Civil Emergency Service
• D. A group of licensed amateurs who have voluntarily registered their qualifications and equipment for communications duty in the public service

T1B01

26. Which of the following frequency ranges are available for phone operation by Technician licensees?

• A. 28.500 MHz to 28.600 MHz
• B. 28.300 MHz to 28.500 MHz
• C. 28.100 MHz to 28.300 MHz
• D. 28.050 MHz to 28.150 MHz

T1C08

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

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

T1D01

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

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

T8A01

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

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

T8B06

30. Which of the following are inputs to a satellite tracking program?

• A. The last observed time of zero Doppler shift
• B. All these choices are correct
• C. The satellite transmitted power
• D. The Keplerian elements

T8D01

31. Which of the following is a digital communications mode?

• A. FT8
• B. IEEE 802.11
• C. All these choices are correct
• D. Packet radio

T7B08

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

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

T6C03

33. What is component 2 in figure T-1?

• A. Resistor
• B. Connector
• C. Transistor
• D. Indicator lamp

T3A06

34. What is the meaning of the term "picket fencing"?

• A. Alternating transmissions during a net operation
• B. Interference from cable TV in the form of carriers at fixed intervals across the band
• C. Rapid flutter on mobile signals due to multipath propagation
• D. A type of ground system used with vertical antennas

T3B03

35. What are the two components of a radio wave?

• A. Voltage and current
• B. Ionizing and non-ionizing radiation
• C. Electric and magnetic fields
• D. Impedance and reactance