Practice Exam

T5A08

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

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

T0A11

2. What hazard exists in a power supply immediately after turning it off?

• A. Charge stored in filter capacitors
• B. Leakage flux in the power transformer
• C. Voltage transients from kickback diodes
• D. Circulating currents in the dc filter

T5D11

3. What is the voltage across a 10-ohm resistor if a current of 1 ampere flows through it?

• A. 9 volts
• B. 1 volt
• C. 11 volts
• D. 10 volts

T8B03

4. Which of the following are provided by satellite tracking programs?

• A. Maps showing the real-time position of the satellite track over Earth
• B. The time, azimuth, and elevation of the start, maximum altitude, and end of a pass
• C. All these choices are correct
• D. The apparent frequency of the satellite transmission, including effects of Doppler shift

T1D02

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

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

T9B03

6. Why is coaxial cable the most common feed line for amateur radio antenna systems?

• A. It is easy to use and requires few special installation considerations
• B. It has less loss than any other type of feed line
• C. It is less expensive than any other type of feed line
• D. It can handle more power than any other type of feed line

T4A08

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

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

T2C05

8. 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. Messages exchanged by net stations
• D. Requests to activate the net by a served agency

T3C11

9. Why is the radio horizon for VHF and UHF signals more distant than the visual horizon?

• A. The atmosphere refracts radio waves slightly
• B. Radio waves are not blocked by dust particles
• C. Radio waves are blocked by dust particles
• D. Radio signals move somewhat faster than the speed of light

T2B05

10. What would cause your FM transmission audio to be distorted on voice peaks?

• A. Your repeater offset is inverted
• B. Your transmit power is too high
• C. You need to talk louder
• D. You are talking too loudly

T1B05

11. How may amateurs use the 219 to 220 MHz segment of 1.25 meter band?

• A. Spread spectrum only
• B. Fast-scan television only
• C. Emergency traffic only
• D. Fixed digital message forwarding systems only

T6D02

12. What is a relay?

• A. A current controlled amplifier
• B. A pass transistor
• C. An inverting amplifier
• D. An electrically-controlled switch

T1A05

13. What proves that the FCC has issued an operator/primary license grant?

• A. A printed copy of the certificate of successful completion of examination
• B. All these choices are correct
• C. The license appears in the FCC ULS database
• D. An email notification from the NCVEC granting the license

T8D11

14. What is an ARQ transmission system?

• A. An error correction method in which the receiving station detects errors and sends a request for retransmission
• B. A method of compressing data using autonomous reiterative Q codes prior to final encoding
• C. A system used to encrypt command signals to an amateur radio satellite
• D. A special transmission format limited to video signals

T7D10

15. What reading indicates that an ohmmeter is connected across a large, discharged capacitor?

• A. Increasing resistance with time
• B. Steady full-scale reading
• C. Decreasing resistance with time
• D. Alternating between open and short circuit

T7C09

16. Which of the following causes failure of coaxial cables?

• A. Solder flux contamination
• B. Moisture contamination
• C. Operation at 100% duty cycle for an extended period
• D. Rapid fluctuation in transmitter output power

T3A04

17. 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

T1E07

18. When the control operator is not the station licensee, who is responsible for the proper operation of the station?

• A. All licensed amateurs who are present at the operation
• B. The control operator and the station licensee
• C. Only the station licensee
• D. Only the control operator

T5C10

19. How much power is delivered by a voltage of 12 volts DC and a current of 2.5 amperes?

• A. 14.5 watts
• B. 0.208 watts
• C. 4.8 watts
• D. 30 watts

T6B04

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

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

T2A03

21. What is a common repeater frequency offset in the 70 cm 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

T4B12

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

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

T8C02

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

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

T8A09

24. What is the approximate bandwidth of a VHF repeater FM voice signal?

• A. About 150 kHz
• B. Less than 500 Hz
• C. Between 50 and 125 kHz
• D. Between 10 and 15 kHz

T5B13

25. Which is equal to 2425 MHz?

• A. 2.425 GHz
• B. 0.002425 GHz
• C. 24.25 GHz
• D. 2425 GHz

T0C13

26. Who is responsible for ensuring that no person is exposed to RF energy above the FCC exposure limits?

• A. Anyone who is near an antenna
• B. The FCC
• C. The station licensee
• D. The local zoning board

T1F03

27. When are you required to transmit your assigned call sign?

• A. At least once during each transmission
• B. At least every 15 minutes during and at the end of a communication
• C. At least every 10 minutes during and at the end of a communication
• D. At the beginning of each contact, and every 10 minutes thereafter

T3B01

28. What is the relationship between the electric and magnetic fields of an electromagnetic wave?

• A. They are at right angles
• B. They are in parallel
• C. They travel at different speeds
• D. They revolve in opposite directions

T1C01

29. For which license classes are new licenses currently available from the FCC?

• A. Novice, Technician, General, Amateur Extra
• B. Technician, General, Amateur Extra
• C. Technician, Technician Plus, General, Amateur Extra
• D. Novice, Technician Plus, General, Advanced

T9A07

30. 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

T7B05

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

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

T0B03

32. Under what circumstances is it safe to climb a tower without a helper or observer?

• A. When no electrical work is being performed
• B. Never
• C. When no mechanical work is being performed
• D. When the work being done is not more than 20 feet above the ground

T6A04

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

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

T6C02

34. What is component 1 in figure T-1?

• A. Resistor
• B. Transistor
• C. Connector
• D. Battery

T7A10

35. What device increases the transmitted output power from a transceiver?

• A. All these choices are correct
• B. A voltage divider
• C. An impedance network
• D. An RF power amplifier