Practice Exam

T9A08

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

• A. 50
• B. 19
• C. 12
• D. 112

T4B02

2. Which of the following can be used to enter a transceiver's operating frequency?

• A. The CTCSS or DTMF encoder
• B. The keypad or VFO knob
• C. All these choices are correct
• D. The Automatic Frequency Control

T3A04

3. What happens when antennas at opposite ends of a VHF or UHF line of sight radio link are not using the same polarization?

• A. The modulation sidebands might become inverted
• B. Signals have an echo effect
• C. Nothing significant will happen
• D. Received signal strength is reduced

T9B05

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

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

T1B12

5. Except for some specific restrictions, what is the maximum peak envelope power output for Technician class operators using frequencies above 30 MHz?

• A. 100 watts
• B. 500 watts
• C. 50 watts
• D. 1500 watts

T4A10

6. What function is performed with a transceiver and a digital mode hot spot?

• A. RTTY encoding and decoding without a computer
• B. Communication using digital voice or data systems via the internet
• C. High-speed digital communications for meteor scatter
• D. FT8 digital communications via AFSK

T0A02

7. What health hazard is presented by electrical current flowing through the body?

• A. It may cause involuntary muscle contractions
• B. All these choices are correct
• C. It may cause injury by heating tissue
• D. It may disrupt the electrical functions of cells

T7B09

8. What should be the first step to resolve non-fiber optic cable TV interference caused by your amateur radio transmission?

• A. Add a preamplifier to the TV antenna input
• B. Be sure all TV feed line coaxial connectors are installed properly
• C. Add a low-pass filter to the TV antenna input
• D. Add a high-pass filter to the TV antenna input

T8C06

9. How is over the air access to IRLP nodes accomplished?

• A. By obtaining a password that is sent via voice to the node
• B. By using DTMF signals
• C. By using CTCSS tone codes
• D. By entering the proper internet password

T2C08

10. Which of the following is a characteristic of good traffic handling?

• A. Ensuring that any newsworthy messages are relayed to the news media
• B. Passing messages exactly as received
• C. Making decisions as to whether messages are worthy of relay or delivery
• D. All these choices are correct

T5A03

11. What is the name for the flow of electrons in an electric circuit?

• A. Capacitance
• B. Current
• C. Voltage
• D. Resistance

T1F08

12. What is the definition of third party communications?

• A. A message from a control operator to another amateur station control operator on behalf of another person
• B. Amateur radio communications where three stations are in communications with one another
• C. Temporary authorization for an unlicensed person to transmit on the amateur bands for technical experiments
• D. Operation when the transmitting equipment is licensed to a person other than the control operator

T6C09

13. What is component 4 in figure T-2?

• A. Double-pole switch
• B. Transformer
• C. Variable inductor
• D. Potentiometer

T2B02

14. What term describes the use of a sub-audible tone transmitted along with normal voice audio to open the squelch of a receiver?

• A. DTMF
• B. Carrier squelch
• C. CTCSS
• D. Tone burst

T6A10

15. Which of the following battery chemistries is rechargeable?

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

T7D01

16. Which instrument would you use to measure electric potential?

• A. An ammeter
• B. An ohmmeter
• C. A voltmeter
• D. A wavemeter

T1D02

17. Under which of the following circumstances are one-way transmissions by an amateur station prohibited?

• A. In all circumstances
• B. Telecommand or transmissions of telemetry
• C. Broadcasting
• D. International Morse Code Practice

T3B06

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

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

T8D13

19. What is FT8?

• A. A wideband FM voice mode
• B. A digital slow-scan TV mode with forward error correction and automatic color compensation
• C. A digital mode capable of low signal-to-noise operation
• D. An eight channel multiplex mode for FM repeaters

T1E06

20. When, under normal circumstances, may a Technician class licensee be the control operator of a station operating in an Amateur Extra Class band segment?

• A. As part of a multi-operator contest team
• B. At no time
• C. When designated as the control operator by an Amateur Extra Class licensee
• D. When using a club station whose trustee holds an Amateur Extra Class license

T5B08

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

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

T7C11

22. What is a disadvantage of air core coaxial cable when compared to foam or solid dielectric types?

• A. It cannot be used at below freezing temperatures
• B. It cannot be used for VHF or UHF antennas
• C. It requires special techniques to prevent moisture in the cable
• D. It has more loss per foot

T3C05

23. Which of the following effects may allow radio signals to travel beyond obstructions between the transmitting and receiving stations?

• A. Faraday rotation
• B. Knife-edge diffraction
• C. Doppler shift
• D. Quantum tunneling

T7A01

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

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

T6D08

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

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

T1A10

26. What is the Radio Amateur Civil Emergency Service (RACES)?

• A. An emergency service using amateur operators certified by a civil defense organization as being enrolled in that organization
• B. A radio service using amateur frequencies for emergency management or civil defense communications
• C. A radio service using amateur stations for emergency management or civil defense communications
• D. All these choices are correct

T2A03

27. What is a common repeater frequency offset in the 70 cm band?

• A. Plus or minus 5 MHz
• B. Plus or minus 1 MHz
• C. Plus or minus 600 kHz
• D. Plus or minus 500 kHz

T8A11

28. What is the approximate bandwidth required to transmit a CW signal?

• A. 2.4 kHz
• B. 15 kHz
• C. 150 Hz
• D. 1000 Hz

T6B01

29. Which is true about forward voltage drop in a diode?

• A. It is proportional to peak inverse voltage
• B. It indicates that the diode is defective
• C. It is lower in some diode types than in others
• D. It has no impact on the voltage delivered to the load

T8B01

30. What telemetry information is typically transmitted by satellite beacons?

• A. Health and status of the satellite
• B. The signal strength of received signals
• C. All these choices are correct
• D. Time of day accurate to plus or minus 1/10 second

T5C11

31. How much current is required to deliver 120 watts at a voltage of 12 volts DC?

• A. 132 amperes
• B. 10 amperes
• C. 0.1 amperes
• D. 12 amperes

T0C05

32. Why do exposure limits vary with frequency?

• A. Lower frequency RF fields do not penetrate the human body
• B. Higher frequency RF fields are transient in nature
• C. The human body absorbs more RF energy at some frequencies than at others
• D. Lower frequency RF fields have more energy than higher frequency fields

T0B11

33. Which of the following establishes grounding requirements for an amateur radio tower or antenna?

• A. FAA tower lighting regulations
• B. Local electrical codes
• C. UL recommended practices
• D. FCC Part 97 rules

T5D10

34. What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows through it?

• A. 0.25 volts
• B. 1.5 volts
• C. 1 volt
• D. 2.5 volts

T1C04

35. What may happen if the FCC is unable to reach you by email?

• A. Fine and suspension of operator license
• B. Nothing; there is no such requirement
• C. Revocation of the station license or suspension of the operator license
• D. Revocation of access to the license record in the FCC system