Practice Exam

T1D07

1. What types of amateur stations can automatically retransmit the signals of other amateur stations?

• A. Repeater, auxiliary, or space stations
• B. Auxiliary, beacon, or Earth stations
• C. Earth, repeater, or space stations
• D. Beacon, repeater, or space stations

T2B12

2. What is the purpose of the color code used on DMR repeater systems?

• A. Identifies the codec used
• B. Must match the repeater color code for access
• C. Defines the frequency pair to use
• D. Defines the minimum signal level required for access

T4B04

3. What is a way to enable quick access to a favorite frequency or channel on your transceiver?

• A. Enable the VOX
• B. Store it in a memory channel
• C. Enable the frequency offset
• D. Use the scan mode to select the desired frequency

T5D04

4. What is the resistance of a circuit in which a current of 3 amperes flows when connected to 90 volts?

• A. 270 ohms
• B. 30 ohms
• C. 3 ohms
• D. 93 ohms

T8B08

5. What is meant by the statement that a satellite is operating in U/V mode?

• A. The satellite uplink is in the 70 centimeter band and the downlink is in the 2 meter band
• B. The satellite frequencies are usually variable
• C. The satellite uplink is in the 15 meter band and the downlink is in the 10 meter band
• D. The satellite operates using ultraviolet frequencies

T8A08

6. What is the approximate bandwidth of a typical single sideband (SSB) voice signal?

• A. 1 kHz
• B. 15 kHz
• C. 6 kHz
• D. 3 kHz

T8C10

7. What is required before using the EchoLink system?

• A. Register your call sign and provide proof of license
• B. Complete the required EchoLink training
• C. All these choices are correct
• D. Purchase a license to use the EchoLink software

T9A01

8. What is a beam antenna?

• A. An antenna that concentrates signals in one direction
• B. An omnidirectional antenna invented by Clarence Beam
• C. An antenna that reverses the phase of received signals
• D. An antenna built from aluminum I-beams

T1C11

9. If your license has expired and is still within the allowable grace period, may you continue to transmit on the amateur radio bands?

• A. Yes, for up to two years
• B. Yes, as soon as you apply for renewal
• C. Yes, for up to one year
• D. No, you must wait until the license has been renewed

T1B05

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

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

T3C11

11. 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. The atmosphere refracts radio waves slightly
• C. Radio waves are not blocked by dust particles
• D. Radio waves are blocked by dust particles

T5C06

12. What does the abbreviation "RF" mean?

• A. Reflective force in antenna transmission lines
• B. The real frequency transmitted as opposed to the apparent frequency
• C. Radio frequency signals of all types
• D. The resonant frequency of a tuned circuit

T7C07

13. What happens to power lost in a feed line?

• A. It is converted into heat
• B. It distorts the signal
• C. It increases the SWR
• D. It is radiated as harmonics

T3B03

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

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

T9B10

15. What is the electrical difference between RG-58 and RG-213 coaxial cable?

• A. RG-58 cable can handle higher power levels
• B. RG-58 cable has two shields
• C. There is no significant difference between the two types
• D. RG-213 cable has less loss at a given frequency

T5B11

16. Which decibel value represents a power increase from 20 watts to 200 watts?

• A. 12 dB
• B. 28 dB
• C. 18 dB
• D. 10 dB

T1A03

17. What do the FCC rules state regarding the use of a phonetic alphabet for station identification in the Amateur Radio Service?

• A. It is required when transmitting emergency messages
• B. It is required when in contact with foreign stations
• C. All these choices are correct
• D. It is encouraged

T8D02

18. What is a "talkgroup" on a DMR repeater?

• A. A way for groups of users to share a channel at different times without hearing other users on the channel
• B. A group of operators sharing common interests
• C. A protocol that increases the signal-to-noise ratio when multiple repeaters are linked together
• D. A net that meets at a specified time

T4A10

19. What function is performed with a transceiver and a digital mode hot spot?

• A. High-speed digital communications for meteor scatter
• B. FT8 digital communications via AFSK
• C. RTTY encoding and decoding without a computer
• D. Communication using digital voice or data systems via the internet

T5A07

20. Why are metals generally good conductors of electricity?

• A. All these choices are correct
• B. They have many free electrons
• C. They have many free protons
• D. They have relatively high density

T6C09

21. What is component 4 in figure T-2?

• A. Potentiometer
• B. Double-pole switch
• C. Variable inductor
• D. Transformer

T7D04

22. Which instrument is used to measure electric current?

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

T2C01

23. When do FCC rules NOT apply to the operation of an amateur station?

• A. When operating under special ARES rules
• B. When operating under special FEMA rules
• C. FCC rules always apply
• D. When operating a RACES station

T7A10

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

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

T1E05

25. What is an amateur station's control point?

• A. The location of the station's transmitting apparatus
• B. The mailing address of the station licensee
• C. The location of the station's transmitting antenna
• D. The location at which the control operator function is performed

T0A03

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

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

T6D01

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

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

T6A02

28. What type of component is often used as an adjustable volume control?

• A. Power resistor
• B. Fixed resistor
• C. Transformer
• D. Potentiometer

T3A11

29. Which region of the atmosphere can refract or bend HF and VHF radio waves?

• A. The stratosphere
• B. The ionosphere
• C. The troposphere
• D. The mesosphere

T6B03

30. Which of these components can be used as an electronic switch?

• A. Potentiometer
• B. Varistor
• C. Transistor
• D. Thermistor

T0B04

31. Which of the following is an important safety precaution to observe when putting up an antenna tower?

• A. All these choices are correct
• B. Insulate the base of the tower to avoid lightning strikes
• C. Look for and stay clear of any overhead electrical wires
• D. Wear a ground strap connected to your wrist at all times

T0C08

32. Which of the following actions can reduce exposure to RF radiation?

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

T7B08

33. What should you do if something in a neighbor's home is causing harmful interference to your amateur station?

• A. Make sure your station meets the standards of good amateur practice
• B. All these choices are correct
• C. Work with your neighbor to identify the offending device
• D. Politely inform your neighbor that FCC rules prohibit the use of devices that cause interference

T2A01

34. 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 500 kHz
• D. Plus or minus 1 MHz

T1F03

35. 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 the beginning of each contact, and every 10 minutes thereafter
• D. At least every 10 minutes during and at the end of a communication