Practice Exam

T5D08

1. What is the current through a 100-ohm resistor connected across 200 volts?

• A. 20,000 amperes
• B. 0.5 amperes
• C. 2 amperes
• D. 100 amperes

T3A04

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

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

T8A12

3. Which of the following is a disadvantage of FM compared with single sideband?

• A. FM signals are harder to tune
• B. Only one signal can be received at a time
• C. Voice quality is poorer
• D. All these choices are correct

T1F02

4. How often must you identify with your FCC-assigned call sign when using tactical call signs such as "Race Headquarters"?

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

T2C08

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

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

T4A08

6. Which of the following conductors is preferred for bonding at RF?

• A. Copper braid removed from coaxial cable
• B. Steel wire
• C. Twisted-pair cable
• D. Flat copper strap

T3C02

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

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

T1E08

8. Which of the following is an example of automatic control?

• A. Repeater operation
• B. Using a computer or other device to identify automatically
• C. Controlling a station over the internet
• D. Using a computer or other device to send CW automatically

T1D02

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

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

T6C04

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

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

T8B10

11. What is a LEO satellite?

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

T1B12

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

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

T8D03

13. What kind of data can be transmitted by APRS?

• A. All these choices are correct
• B. Text messages
• C. GPS position data
• D. Weather data

T4B12

14. What is the result of tuning an FM receiver above or below a signal's frequency?

• A. Change in audio pitch
• B. Generation of a heterodyne tone
• C. Sideband inversion
• D. Distortion of the signal's audio

T0A01

15. Which of the following is a safety hazard of a 12-volt storage battery?

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

T0B05

16. What is the purpose of a safety wire through a turnbuckle used to tension guy lines?

• A. Provide an ability to measure for proper tensioning
• B. Provide a ground path for lightning strikes
• C. Secure the guy line if the turnbuckle breaks
• D. Prevent loosening of the turnbuckle from vibration

T9A08

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

• A. 50
• B. 19
• C. 112
• D. 12

T0C11

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

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

T7C10

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

• A. Ultraviolet light can damage the jacket and allow water to enter the cable
• B. Ultraviolet light can increase losses in the cable's jacket
• C. Ultraviolet and RF signals can mix, causing interference
• D. Ultraviolet resistant jackets prevent harmonic radiation

T5C03

20. What describes the ability to store energy in a magnetic field?

• A. Admittance
• B. Inductance
• C. Capacitance
• D. Resistance

T3B05

21. What is the relationship between wavelength and frequency?

• A. Wavelength and frequency increase as path length increases
• B. Wavelength gets shorter as frequency increases
• C. Wavelength gets longer as frequency increases
• D. Wavelength and frequency are unrelated

T5B05

22. Which is equal to 500 milliwatts?

• A. 50 watts
• B. 0.02 watts
• C. 0.5 watts
• D. 5 watts

T6B04

23. Which of the following components can consist of three regions of semiconductor material?

• A. Transistor
• B. Triode
• C. Alternator
• D. Pentagrid converter

T5A08

24. Which of the following is a good electrical insulator?

• A. Aluminum
• B. Copper
• C. Mercury
• D. Glass

T1C09

25. What is the grace period for renewal if an amateur license expires?

• A. Two years
• B. Three years
• C. Five years
• D. Ten years

T7A08

26. Which of the following describes combining speech with an RF carrier signal?

• A. Modulation
• B. Oscillation
• C. Low-pass filtering
• D. Impedance matching

T7D02

27. How is a voltmeter connected to a component to measure applied voltage?

• A. In parallel
• B. In phase
• C. In quadrature
• D. In series

T1A11

28. When is willful interference to other amateur radio stations permitted?

• A. At any time, stations in the Amateur Radio Service are not protected from willful interference
• B. When making short test transmissions
• C. To stop another amateur station that is breaking the FCC rules
• D. At no time

T6A08

29. What is the function of an SPDT switch?

• A. Two circuits are 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. A single circuit is opened or closed

T7B02

30. What would cause a broadcast AM or FM radio to receive an amateur radio transmission unintentionally?

• A. The audio amplifier of the transmitter is overloaded
• B. The deviation of an FM transmitter is set too low
• C. The receiver is unable to reject strong signals outside the AM or FM band
• D. The microphone gain of the transmitter is turned up too high

T6D07

31. Which of the following is commonly used as a visual indicator?

• A. Bipolar transistor
• B. Zener diode
• C. FET
• D. LED

T9B07

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

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

T2B09

33. Why are simplex channels designated in the VHF/UHF band plans?

• A. For working DX only
• B. So stations within range of each other can communicate without tying up a repeater
• C. So stations with simple transmitters can access the repeater without automated offset
• D. For contest operation

T8C02

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

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

T2A11

35. What term describes an amateur station that is transmitting and receiving on the same frequency?

• A. Simplex
• B. Diplex
• C. Full duplex
• D. Multiplex