Practice Exam

T8C09

1. How might you obtain a list of active nodes that use VoIP?

• A. From a repeater directory
• B. From the FCC Rulebook
• C. From your local emergency coordinator
• D. From the local repeater frequency coordinator

T5A08

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

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

T6B02

3. What electronic component allows current to flow in only one direction?

• A. Resistor
• B. Diode
• C. Fuse
• D. Driven Element

T0B01

4. When should members of a tower work team wear a hard hat and safety glasses?

• A. Only when the tower exceeds 30 feet in height
• B. At all times except when belted firmly to the tower
• C. At all times when any work is being done on the tower
• D. At all times except when climbing the tower

T3A06

5. What term is commonly used to describe the rapid fluttering sound sometimes heard from mobile stations that are moving while transmitting?

• A. Frequency shifting
• B. Flip-flopping
• C. Pulsing
• D. Picket fencing

T9B05

6. What generally happens as the frequency of a signal passing through coaxial cable is increased?

• A. The apparent SWR increases
• B. The characteristic impedance increases
• C. The reflected power increases
• D. The loss increases

T7C05

7. What is the approximate SWR value above which the protection circuits in most solid-state transmitters begin to reduce transmitter power?

• A. 2 to 1
• B. 10 to 1
• C. 1 to 2
• D. 6 to 1

T6A04

8. What electrical component stores energy in an electric field?

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

T2A05

9. What should you transmit when responding to a call of CQ?

• A. CQ followed by the other station's call sign
• B. A signal report followed by your call sign
• C. The other station's call sign followed by your call sign
• D. Your call sign followed by the other station's call sign

T2B09

10. Which of the following methods is encouraged by the FCC when identifying your station when using phone?

• A. Repeat your call sign three times
• B. Use of a phonetic alphabet
• C. Send your call sign in CW as well as voice
• D. Increase your signal to full power when identifying

T7D06

11. Which of the following might damage a multimeter?

• A. Attempting to measure voltage when using the resistance setting
• B. Measuring a voltage too small for the chosen scale
• C. Not allowing it to warm up properly
• D. Leaving the meter in the milliamps position overnight

T5B08

12. How many microfarads are 1,000,000 picofarads?

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

T6C07

13. What is component 8 in figure T2?

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

T3C02

14. Which of the following might be happening when VHF signals are being received from long distances?

• A. Signals are being reflected from outer space
• B. Signals are arriving by sub-surface ducting
• C. Signals are being reflected by lightning storms in your area
• D. Signals are being refracted from a sporadic E layer

T4A08

15. Which type of conductor is best to use for RF grounding?

• A. Round copper-clad steel wire
• B. Round stranded wire
• C. Flat strap
• D. Twisted-pair cable

T1A04

16. Which of the following meets the FCC definition of harmful interference?

• A. Static from lightning storms
• B. That which seriously degrades, obstructs, or repeatedly interrupts a radio communication service operating in accordance with the Radio Regulations
• C. Radio transmissions that annoy users of a repeater
• D. Unwanted radio transmissions that cause costly harm to radio station apparatus

T8B11

17. What is a commonly used method of sending signals to and from a digital satellite?

• A. PSK31
• B. FM Packet
• C. USB AFSK
• D. WSJT

T7A05

18. What is the function of block 1 if figure T4 is a simple CW transmitter?

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

T7B03

19. Which of the following may be a cause of radio frequency interference?

• A. Spurious emissions
• B. Harmonics
• C. All of these choices are correct
• D. Fundamental overload

T4B10

20. Which of the following is an appropriate receive filter to select in order to minimize noise and interference for CW reception?

• A. 5000 Hz
• B. 2400 Hz
• C. 500 Hz
• D. 1000 Hz

T9A08

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

• A. 12
• B. 19
• C. 112
• D. 50

T6D05

22. What type of circuit controls the amount of voltage from a power supply?

• A. Filter
• B. Oscillator
• C. Phase inverter
• D. Regulator

T1C03

23. What types of international communications are permitted by an FCC-licensed amateur station?

• A. Any communications that would be permitted on an international broadcast station
• B. Only communications incidental to contest exchanges, all other communications are prohibited
• C. Communications incidental to conducting business or remarks of a personal nature
• D. Communications incidental to the purposes of the amateur service and remarks of a personal character

T2C07

24. What should you do to minimize disruptions to an emergency traffic net once you have checked in?

• A. Do not transmit on the net frequency until asked to do so by the net control station
• B. Wait until the net frequency is quiet, then ask for any emergency traffic for your area
• C. Whenever the net frequency is quiet, announce your call sign and location
• D. Move 5 kHz away from the net's frequency and use high power to ask other hams to keep clear of the net frequency

T1E03

25. Who must designate the station control operator?

• A. The frequency coordinator
• B. The ITU
• C. The station licensee
• D. The FCC

T1F08

26. When may a Technician Class licensee be the control operator of a station operating in an exclusive Extra Class operator segment of the amateur bands?

• A. On Armed Forces Day
• B. Never
• C. As part of a multi-operator contest team
• D. When using a club station whose trustee is an Extra Class operator licensee

T5D05

27. What is the resistance in a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?

• A. 8 ohms
• B. 13.5 ohms
• C. 0.125 ohms
• D. 18 ohms

T1D03

28. When is the transmission of codes or ciphers allowed to hide the meaning of a message transmitted by an amateur station?

• A. Only during contests
• B. Only when transmitting control commands to space stations or radio control craft
• C. Only when operating mobile
• D. Only when frequencies above 1280 MHz are used

T0A04

29. What is the purpose of a fuse in an electrical circuit?

• A. All of these choices are correct
• B. To prevent power supply ripple from damaging a circuit
• C. To interrupt power in case of overload
• D. To limit current to prevent shocks

T5C02

30. What is the basic unit of capacitance?

• A. The ohm
• B. The volt
• C. The farad
• D. The henry

T8D04

31. What type of transmission is indicated by the term NTSC?

• A. A special mode for earth satellite uplink
• B. A frame compression scheme for TV signals
• C. A Normal Transmission mode in Static Circuit
• D. An analog fast scan color TV signal

T0C08

32. Which of the following actions might amateur operators take to prevent exposure to RF radiation in excess of FCC-supplied limits?

• A. Increase the duty cycle
• B. Relocate the transmitter
• C. All of these choices are correct
• D. Relocate antennas

T3B04

33. How fast does a radio wave travel through free space?

• A. At the speed of light
• B. Its speed increases as the frequency increases
• C. Its speed is inversely proportional to its wavelength
• D. At the speed of sound

T8A02

34. What type of modulation is most commonly used for VHF packet radio transmissions?

• A. Spread Spectrum
• B. FM
• C. AM
• D. SSB

T1B01

35. What is the ITU?

• A. A department of the FCC
• B. An agency of the United States Department of Telecommunications Management
• C. A United Nations agency for information and communication technology issues
• D. An independent frequency coordination agency