Practice Exam

T7B01

1. What can you do if you are told your FM handheld or mobile transceiver is over-deviating?

• A. Talk farther away from the microphone
• B. Let the transceiver cool off
• C. Change to a higher power level
• D. Talk louder into the microphone

T2A09

2. Which of the following is a customary way to indicate a station is listening on a repeater and looking for a contact?

• A. "QSY" followed by your call sign
• B. The station's call sign followed by the word "listening"
• C. The repeater's call sign followed by the station's call sign
• D. "CQ CQ" followed by the repeater's call sign

T1C05

3. Which of the following is a valid Group D call sign format for Technician class?

• A. W1XX
• B. KF1XXX
• C. KA1X
• D. All these choices are correct

T6B07

4. What causes a light-emitting diode (LED) to emit light?

• A. Reverse current
• B. Forward current
• C. Capacitively-coupled RF signal
• D. Inductively-coupled RF signal

T4A05

5. Where should an RF power meter be installed?

• A. At the power supply output
• B. In the power supply cable, as close as possible to the radio
• C. In parallel with the push-to-talk line and the antenna
• D. In the feed line, between the transmitter and antenna

T7A04

6. Which term describes the ability of a receiver to discriminate between multiple signals?

• A. Harmonic distortion
• B. Discrimination ratio
• C. Selectivity
• D. Sensitivity

T3C11

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

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

T0C02

8. Which of the following bands has the lowest maximum permissible exposure for RF safety?

• A. 440 MHz
• B. 3.5 MHz
• C. 50 MHz
• D. 1296 MHz

T1F10

9. Who is accountable if a repeater inadvertently retransmits communications that violate the FCC rules?

• A. The owner of the repeater
• B. The control operator of the repeater
• C. The control operator of the originating station
• D. Both the originating station and the repeater owner

T8D04

10. What is meant by the term "NTSC?"

• A. A special mode for satellite uplink
• B. An analog fast-scan color TV signal
• C. A frame compression scheme for TV signals
• D. A digital transmission standard for encrypting data

T2C12

11. Which of the following requires certification by a civil defense agency?

• A. MARS
• B. RACES
• C. ARES
• D. SKYWARN

T7C06

12. What does an SWR reading of 4:1 indicate?

• A. Impedance mismatch
• B. Gain of +4 dB
• C. Good impedance match
• D. Loss of -4 dB

T6D09

13. What is the name of a device that combines several semiconductors and other components into one package?

• A. Integrated circuit
• B. Multi-pole relay
• C. Transformer
• D. Transducer

T3B08

14. What frequency range is referred to as VHF?

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

T1E09

15. Which amateur stations may be remotely controlled?

• A. Only digital stations
• B. Only repeater stations
• C. Any station
• D. Only automatically controlled stations

T3A04

16. What is the effect of antenna cross-polarization over a line-of-sight VHF or UHF path?

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

T8C08

17. What is the Internet Radio Linking Project (IRLP)?

• A. A system for providing access to websites via amateur radio
• B. A technique for measuring signal strength of an amateur transmitter via the internet
• C. A technique to connect amateur radio systems, such as repeaters, via the internet
• D. A system for informing amateurs in real time of the frequency of active DX stations

T5D11

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

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

T8B10

19. What does the term LEO mean in reference to communication satellites?

• A. Low Earth Orbit, which has a period of around 100 minutes
• B. Low Energy Orbit, which conserves battery power
• C. Low Elevation Orbit, which appears close to the horizon from the earth station
• D. Low Equilibrium Orbit, which has a slightly unstable period

T1A08

20. Who recommends transmit/receive channels for repeater and auxiliary stations?

• A. The International Telecommunication Union
• B. A Frequency Spectrum Manager appointed by the FCC
• C. A Volunteer Frequency Coordinator recognized by local amateurs
• D. An FCC Regional Field Office

T1B03

21. Which frequency is in the 6-meter amateur band?

• A. 222.15 MHz
• B. 52.525 MHz
• C. 28.50 MHz
• D. 49.00 MHz

T5C05

22. What is the unit of impedance?

• A. Ampere
• B. Volt
• C. Ohm
• D. Coulomb

T6C07

23. What is component 8 in figure T-2?

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

T1D03

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

• A. Only when using a remote station during a contest
• B. Only when transmitting certain approved digital codes
• C. Never
• D. Only when transmitting control commands to space stations or model craft

T9A06

25. Which of the following types of antennas offers the greatest gain?

• A. Yagi
• B. J pole
• C. 5/8 wave vertical
• D. Isotropic

T0B05

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

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

T4B07

27. What is a DMR "code plug"?

• A. A Coder-Decoder (CODEC) that converts analog voice data to DMR digital data and vice versa
• B. An adapter cable used to connect a DMR radio to a computer for internet access
• C. Configuration data loaded onto your radio to access repeaters and talkgroups
• D. An upgrade to DMR programming software provided by the radio manufacturer to accommodate new radio models

T9B05

28. What happens as the frequency of a signal in coaxial cable is increased?

• A. The characteristic impedance increases
• B. The loss increases
• C. The characteristic impedance decreases
• D. The loss decreases

T5A09

29. Which of the following describes alternating current?

• A. Current that alternates between positive and negative directions
• B. All these answers are correct
• C. Current that alternates between a positive direction and zero
• D. Current that alternates between a negative direction and zero

T0A05

30. Why should a 5-ampere fuse never be replaced with a 20-ampere fuse?

• A. Excessive current could cause a fire
• B. The larger fuse would be likely to blow because it is rated for higher current
• C. Voltage drop in the higher current fuse could result in excessively low voltage to the device
• D. The power supply ripple would greatly increase

T5B13

31. Which is equal to 2425 MHz?

• A. 0.002425 GHz
• B. 24.25 GHz
• C. 242.5 GHz
• D. 2.425 GHz

T2B04

32. Which of the following could be the reason you are unable to access a repeater whose output you can hear?

• A. All these choices are correct
• B. Improper transceiver offset
• C. You are using the wrong DCS code
• D. You are using the wrong CTCSS tone

T6A08

33. What is the function of an SPDT switch?

• A. A single circuit is switched between one of two other circuits
• B. Two circuits are opened or closed
• C. A single circuit is opened or closed
• D. Two circuits are each switched between one of two other circuits

T7D11

34. Which of the following precautions should be taken when measuring in-circuit resistance with an ohmmeter?

• A. Ensure that the circuit is not powered
• B. Ensure that the circuit is operating at the correct frequency
• C. Ensure that the applied voltages are correct
• D. Ensure that the circuit is grounded

T8A11

35. What is the approximate bandwidth required to transmit a CW signal?

• A. 15 kHz
• B. 1000 Hz
• C. 2.4 kHz
• D. 150 Hz