ham exam 2 technician Pretest


1. When are you allowed to operate your amateur station in a foreign country?

  • A. When there is a mutual agreement allowing third party communications
  • B. When the foreign country authorizes it
  • C. When authorization permits amateur communications in a foreign language
  • D. When you are communicating with non-licensed individuals in another country


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

  • B. PSK31
  • C. WSJT
  • D. FM Packet


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

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


4. What is the resistance of a circuit that draws 4 amperes from a 12-volt source?

  • A. 8 Ohms
  • B. 16 ohms
  • C. 48 ohms
  • D. 3 ohms


5. What are the frequency limits of the VHF spectrum?

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


6. How is the cathode lead of a semiconductor diode usually identified?

  • A. With the letter C
  • B. All of these choices are correct
  • C. With a stripe
  • D. With the word cathode


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

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


8. How many volts are equal to one microvolt?

  • A. One thousand kilovolts
  • B. One one-millionth of a volt
  • C. One one-thousandth of a volt
  • D. One million volts


9. What is one way to recharge a 12-volt lead-acid station battery if the commercial power is out?

  • A. Connect the battery in parallel with a vehicle's battery and run the engine
  • B. Add acid to the battery
  • C. Cool the battery in ice for several hours
  • D. All of these choices are correct


10. When is an amateur station permitted to transmit without a control operator?

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


11. What antenna polarization is normally used for long-distance weak-signal CW and SSB contacts using the VHF and UHF bands?

  • A. Right-hand circular
  • B. Vertical
  • C. Left-hand circular
  • D. Horizontal


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

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


13. What popular operating activity involves contacting as many stations as possible during a specified period of time?

  • A. Simulated emergency exercises
  • B. Contesting
  • C. Net operations
  • D. Public service events


14. Why should coax connectors exposed to the weather be sealed against water intrusion?

  • A. To prevent interference to telephones
  • B. To keep the jacket from becoming loose
  • C. All of these choices are correct
  • D. To prevent an increase in feed line loss


15. What amateur band are you using if you are transmitting on 223.50 MHz?

  • A. 10 meter band
  • B. 2 meter band
  • C. 15 meter band
  • D. 1.25 meter band


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

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


17. How can overload of a non-amateur radio or TV receiver by an amateur signal be reduced or eliminated?

  • A. Block the amateur signal with a filter at the antenna input of the affected receiver
  • B. Block the interfering signal with a filter on the amateur transmitter
  • C. Switch the transmitter to a narrow-band mode
  • D. Switch the transmitter from FM to SSB


18. Why do VHF and UHF radio signals usually travel somewhat farther than the visual line of sight distance between two stations?

  • A. Radio signals move somewhat faster than the speed of light
  • B. The Earth seems less curved to radio waves than to light
  • C. Radio waves are not blocked by dust particles
  • D. Radio waves are blocked by dust particles


19. What, in general terms, is standing wave ratio (SWR)?

  • A. A measure of how well a load is matched to a transmission line
  • B. The ratio of high to low impedance in a feed line
  • C. An indication of the quality of your station's ground connection
  • D. The transmitter efficiency ratio


20. Which of the following entities recommends transmit/receive channels and other parameters for auxiliary and repeater stations?

  • A. FCC Regional Field Office
  • B. Frequency Coordinator
  • C. International Telecommunications Union
  • D. Frequency Spectrum Manager


21. What is component 3 in figure T1?

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


22. Which of the following types of emission has the narrowest bandwidth?

  • A. Slow-scan TV
  • B. FM voice
  • C. CW
  • D. SSB voice


23. How much power is being used in a circuit when the applied voltage is 13.8 volts DC and the current is 10 amperes?

  • A. 23.8 watts
  • B. 0.7 watts
  • C. 3.8 watts
  • D. 138 watts


24. Which of the following controls could be used if the voice pitch of a single-sideband signal seems too high or low?

  • A. The tone squelch
  • B. The receiver RIT or clarifier
  • C. The AGC or limiter
  • D. The bandwidth selection


25. What device takes the output of a low-powered 28 MHz SSB exciter and produces a 222 MHz output signal?

  • A. High-pass filter
  • B. Low-pass filter
  • C. Phase converter
  • D. Transverter


26. Which instrument would you use to measure electric potential or electromotive force?

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


27. Why is it unwise to install a 20-ampere fuse in the place of a 5-ampere fuse?

  • A. All of these choices are correct
  • B. Excessive current could cause a fire
  • C. The larger fuse would be likely to blow because it is rated for higher current
  • D. The power supply ripple would greatly increase


28. Where must a filter be installed to reduce harmonic emissions from your station?

  • A. Between the receiver and the transmitter
  • B. Between the transmitter and the antenna
  • C. At the microphone
  • D. At the station power supply


29. What is a good precaution to observe before climbing an antenna tower?

  • A. Remove all tower grounding connections
  • B. Put on a climbing harness and safety glasses
  • C. All of the these choices are correct
  • D. Make sure that you wear a grounded wrist strap


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

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


31. What brief statement is often transmitted in place of "CQ" to indicate that you are listening on a repeater?

  • A. The words "Hello test" followed by your call sign
  • B. The letters "QSY" followed by your call sign
  • C. The repeater call sign followed by your call sign
  • D. Your call sign


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

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


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

  • A. 50
  • B. 112
  • C. 19
  • D. 12


34. Under which of the following circumstances are amateur stations authorized to transmit signals related to broadcasting, program production, or news gathering, assuming no other means is available?

  • A. Only when using amateur repeaters linked to the Internet
  • B. Only when broadcasting communications to or from the space shuttle
  • C. Only where noncommercial programming is gathered and supplied exclusively to the National Public Radio network
  • D. Only where such communications directly relate to the immediate safety of human life or protection of property


35. When using tactical identifiers such as "Race Headquarters" during a community service net operation, how often must your station transmit the station's FCC-assigned call sign?

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