Practice Exam

T2B12

1. 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 minimum signal level required for access
• D. Defines the frequency pair to use

T5B13

2. Which is equal to 2425 MHz?

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

T8A06

3. Which sideband is normally used for 10 meter HF, VHF, and UHF single-sideband communications?

• A. Lower sideband
• B. Suppressed sideband
• C. Inverted sideband
• D. Upper sideband

T5D03

4. What formula is used to calculate resistance in a circuit?

• A. R = E / I
• B. R = E - I
• C. R = E x I
• D. R = E + I

T7C07

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

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

T1D11

6. When may an amateur station transmit without identifying on the air?

• A. When transmitting signals to control model craft
• B. When the transmitted power level is below 1 watt
• C. When the transmissions are of a brief nature to make station adjustments
• D. When the transmissions are unmodulated

T3C09

7. What is generally the best time for long-distance 10 meter band propagation via the F region?

• A. From dawn to shortly after sunset during periods of high sunspot activity
• B. From shortly after sunset to dawn during periods of high sunspot activity
• C. From shortly after sunset to dawn during periods of low sunspot activity
• D. From dawn to shortly after sunset during periods of low sunspot activity

T8C09

8. Which of the following protocols enables an amateur station to transmit through a repeater without using a radio to initiate the transmission?

• A. EchoLink
• B. DMR
• C. D-STAR
• D. IRLP

T7B10

9. What might be a problem if you receive a report that your audio signal through an FM repeater is distorted or unintelligible?

• A. Your batteries are running low
• B. Your transmitter is slightly off frequency
• C. All these choices are correct
• D. You are in a bad location

T1A03

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

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

T1F04

11. What language may you use for identification when operating in a phone sub-band?

• A. Any language recognized by the United Nations
• B. Any language recognized by the ITU
• C. English
• D. English, French, or Spanish

T2C09

12. Are amateur station control operators ever permitted to operate outside the frequency privileges of their license class?

• A. Yes, but only when part of a RACES emergency plan
• B. Yes, but only in situations involving the immediate safety of human life or protection of property
• C. Yes, but only when part of a FEMA emergency plan
• D. No

T1C08

13. What is the normal term for an FCC-issued amateur radio license?

• A. Ten years
• B. Eight years
• C. Life
• D. Five years

T6A02

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

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

T5A07

15. Why are metals generally good conductors of electricity?

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

T6D01

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

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

T6B09

17. What are the names for the electrodes of a diode?

• A. Plus and minus
• B. Source and drain
• C. Gate and base
• D. Anode and cathode

T0A10

18. What hazard is caused by charging or discharging a battery too quickly?

• A. Overheating or out-gassing
• B. Half-wave rectification
• C. Excess output ripple
• D. Inverse memory effect

T4B08

19. What is the advantage of having multiple receive bandwidth choices on a multimode transceiver?

• A. Increases the amount of offset between receive and transmit frequencies
• B. Permits monitoring several modes at once by selecting a separate filter for each mode
• C. Permits noise or interference reduction by selecting a bandwidth matching the mode
• D. Increases the number of frequencies that can be stored in memory

T8B05

20. What is a satellite beacon?

• A. The primary transmit antenna on the satellite
• B. A transmission from a satellite that contains status information
• C. A reflective surface on the satellite
• D. An indicator light that shows where to point your antenna

T0C02

21. At which of the following frequencies does maximum permissible exposure have the lowest value?

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

T3B03

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

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

T2A09

23. Which of the following indicates that a station is listening on a repeater and looking for a contact?

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

T1B10

24. Where may SSB phone be used in amateur bands above 50 MHz?

• A. In at least some segment of all these bands
• B. Only in sub-bands allocated to General class or higher licensees
• C. On any band if the power is limited to 25 watts
• D. Only on repeaters

T1E05

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

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

T7D11

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

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

T8D08

27. Which of the following is included in packet radio transmissions?

• A. A check sum that permits error detection
• B. All these choices are correct
• C. Automatic repeat request in case of error
• D. A header that contains the call sign of the station to which the information is being sent

T9B11

28. Which of the following types of feed line has the lowest loss at VHF and UHF?

• A. 50-ohm flexible coax
• B. Air-insulated hardline
• C. 75-ohm flexible coax
• D. Multi-conductor unbalanced cable

T6C03

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

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

T7A10

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

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

T0B11

31. Which of the following establishes grounding requirements for an amateur radio tower or antenna?

• A. UL recommended practices
• B. FCC Part 97 rules
• C. FAA tower lighting regulations
• D. Local electrical codes

T9A05

32. Which of the following increases the resonant frequency of a dipole antenna?

• A. Adding capacitive loading to the ends of the radiating wires
• B. Shortening it
• C. Lengthening it
• D. Inserting coils in series with radiating wires

T4A10

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

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

T3A04

34. What happens when antennas at opposite ends of a VHF or UHF line of sight radio link are not using the same polarization?

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

T5C04

35. What is the unit of inductance?

• A. The ohm
• B. The farad
• C. The henry
• D. The coulomb