Practice Exam

T0A03

1. In the United States, what circuit does black wire insulation indicate in a three-wire 120 V cable?

• A. Black insulation is never used
• B. Neutral
• C. Equipment ground
• D. Hot

T7C10

2. 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 resistant jackets prevent harmonic radiation
• C. Ultraviolet light can increase losses in the cable's jacket
• D. Ultraviolet and RF signals can mix, causing interference

T1B12

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

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

T3B03

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

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

T4B01

5. What is the effect of excessive microphone gain on SSB transmissions?

• A. Distorted transmitted audio
• B. Increased SWR
• C. All these choices are correct
• D. Frequency instability

T5C09

6. How much power is delivered by a voltage of 13.8 volts DC and a current of 10 amperes?

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

T9A07

7. What is a disadvantage of using a handheld VHF transceiver with a flexible antenna inside a vehicle?

• A. The bandwidth of the antenna will decrease, increasing SWR
• B. All these choices are correct
• C. The SWR might decrease, decreasing the signal strength
• D. Signal strength is reduced due to the shielding effect of the vehicle

T8A12

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

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

T1C04

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

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

T5D13

10. In which type of circuit is DC current the same through all components?

• A. Resonant
• B. Series
• C. Parallel
• D. Branch

T8B12

11. Which of the following is a way to determine whether your satellite uplink power is neither too low nor too high?

• A. Your signal strength on the downlink should be about the same as the beacon
• B. All these choices are correct
• C. Check your signal strength report in the telemetry data
• D. Listen for distortion on your downlink signal

T7A05

12. What is the name of a circuit that generates a signal at a specific frequency?

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

T1E11

13. Who does the FCC presume to be the control operator of an amateur station, unless documentation to the contrary is in the station records?

• A. The third party participant
• B. The station licensee
• C. The station custodian
• D. The person operating the station equipment

T0C01

14. What type of radiation are radio signals?

• A. Non-ionizing radiation
• B. Gamma radiation
• C. Alpha radiation
• D. Ionizing radiation

T1F01

15. When must the station and its records be available for FCC inspection?

• A. At any time upon request by an FCC representative
• B. At any time ten days after notification by the FCC of such an inspection
• C. Only when presented with a valid warrant by an FCC official or government agent
• D. At any time after written notification by the FCC of such inspection

T5A11

16. What type of current flow is opposed by resistance?

• A. Alternating current
• B. Direct current
• C. RF current
• D. All these choices are correct

T8C05

17. What is a grid locator?

• A. An instrument for radio direction finding
• B. A letter-number designator assigned to an azimuth and elevation
• C. A letter-number designator assigned to a geographic location
• D. An instrument for neutralizing a final amplifier

T9B08

18. Which of the following is a source of loss in coaxial feed line?

• A. All these choices are correct
• B. Multiple connectors in the line
• C. High SWR
• D. Water intrusion into coaxial connectors

T7D09

19. What is the characteristic appearance of a cold tin-lead solder joint?

• A. Dark black spots
• B. A bright or shiny surface
• C. A rough or lumpy surface
• D. Excessive solder

T0B09

20. Why should you avoid attaching an antenna to a utility pole?

• A. The antenna will not work properly because of induced voltages
• B. All these choices are correct
• C. The 60 Hz radiations from the feed line may increase the SWR
• D. The antenna could contact high-voltage power lines

T2B02

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

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

T5B12

22. Which is equal to 28400 kHz?

• A. 284.00 MHz
• B. 28.400 kHz
• C. 2.800 MHz
• D. 28.400 MHz

T4A02

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

• A. The frequency and power level at which the measurements will be made
• B. The types of modulation being used at the station
• C. The distance that the meter will be located from the antenna
• D. All these choices are correct

T3A01

24. Why do VHF signal strengths sometimes vary greatly when the antenna is moved only a few feet?

• A. Multipath propagation cancels or reinforces signals
• B. All these choices are correct
• C. The signal path encounters different concentrations of water vapor
• D. VHF ionospheric propagation is very sensitive to path length

T6B10

25. Which of the following can provide power gain?

• A. Transformer
• B. Resistor
• C. Transistor
• D. Reactor

T2A01

26. What is a common repeater frequency offset in the 2 meter band?

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

T2C05

27. What does the term "traffic" refer to in net operation?

• A. The number of stations checking in and out of a net
• B. Operation by mobile or portable stations
• C. Requests to activate the net by a served agency
• D. Messages exchanged by net stations

T6C03

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

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

T6A03

29. What electrical parameter is controlled by a potentiometer?

• A. Inductance
• B. Resistance
• C. Capacitance
• D. Field strength

T8D09

30. What is CW?

• A. A technique for coil winding
• B. A digital mode used primarily on 2 meter FM
• C. A type of electromagnetic propagation
• D. Another name for a Morse code transmission

T6D01

31. Which of the following devices or circuits changes an alternating current into a varying direct current signal?

• A. Amplifier
• B. Rectifier
• C. Reflector
• D. Transformer

T1D03

32. When is it permissible to transmit messages encoded to obscure their meaning?

• A. Only when transmitting control commands to space stations or radio control craft
• B. Only when transmitting certain approved digital codes
• C. Never
• D. Only during contests

T1A01

33. Which of the following is part of the Basis and Purpose of the Amateur Radio Service?

• A. Providing personal radio communications for as many citizens as possible
• B. Providing communications for international non-profit organizations
• C. Advancing skills in the technical and communication phases of the radio art
• D. All these choices are correct

T7B04

34. Which of the following could you use to cure distorted audio caused by RF current on the shield of a microphone cable?

• A. Preamplifier
• B. Band-pass filter
• C. Ferrite choke
• D. Low-pass filter

T3C03

35. What is a characteristic of VHF signals received via auroral backscatter?

• A. They occur only during winter nighttime hours
• B. They are distorted and signal strength varies considerably
• C. They are often received from 10,000 miles or more
• D. They are generally strongest when your antenna is aimed west