Practice Exam

T7B11

1. What is a symptom of RF feedback in a transmitter or transceiver?

• A. The transmitter will not stay on the desired frequency
• B. Excessive SWR at the antenna connection
• C. Reports of garbled, distorted, or unintelligible voice transmissions
• D. Frequent blowing of power supply fuses

T3A04

2. 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. Received signal strength is reduced
• C. Signals have an echo effect
• D. Nothing significant will happen

T8C07

3. What is Voice Over Internet Protocol (VoIP)?

• A. A technique for measuring the modulation quality of a transmitter using remote sites monitored via the internet
• B. A method of delivering voice communications over the internet using digital techniques
• C. A set of rules specifying how to identify your station when linked over the internet to another station
• D. A technique employed to "spot" DX stations via the internet

T8D13

4. What is FT8?

• A. An eight channel multiplex mode for FM repeaters
• B. A wideband FM voice mode
• C. A digital mode capable of low signal-to-noise operation
• D. A digital slow-scan TV mode with forward error correction and automatic color compensation

T5C12

5. What is impedance?

• A. The opposition to AC current flow
• B. The Q or Quality Factor of a component
• C. The inverse of resistance
• D. The power handling capability of a component

T0C13

6. 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 local zoning board
• D. The station licensee

T0A01

7. Which of the following is a safety hazard of a 12-volt storage battery?

• A. All these choices are correct
• B. Shorting the terminals can cause burns, fire, or an explosion
• C. RF emissions from a nearby transmitter can cause the electrolyte to emit poison gas
• D. Touching both terminals with the hands can cause electrical shock

T5B04

8. Which is equal to one microvolt?

• A. One thousand kilovolts
• B. One one-millionth of a volt
• C. One million volts
• D. One one-thousandth of a volt

T3B05

9. What is the relationship between wavelength and frequency?

• A. Wavelength gets shorter as frequency increases
• B. Wavelength and frequency are unrelated
• C. Wavelength and frequency increase as path length increases
• D. Wavelength gets longer as frequency increases

T5D01

10. What formula is used to calculate current in a circuit?

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

T4A08

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

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

T2C04

12. What is RACES?

• A. A radio contest held in a short period, sometimes called a "sprint"
• B. An emergency organization combining amateur radio and citizens band operators and frequencies
• C. An FCC part 97 amateur radio service for civil defense communications during national emergencies
• D. An international radio experimentation society

T5A07

13. 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

T7D09

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

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

T8B05

15. What is a satellite beacon?

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

T6A08

16. What is the function of an SPDT switch?

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

T7A07

17. What is the function of a transceiver's PTT input?

• A. Switches transceiver from receive to transmit when grounded
• B. Input for a preamplifier tuning tone
• C. Provides a transmit tuning tone when grounded
• D. Input for a key used to send CW

T3C05

18. Which of the following effects may allow radio signals to travel beyond obstructions between the transmitting and receiving stations?

• A. Quantum tunneling
• B. Knife-edge diffraction
• C. Doppler shift
• D. Faraday rotation

T6B07

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

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

T6D05

20. What type of circuit controls the amount of voltage from a power supply?

• A. Regulator
• B. Oscillator
• C. Phase inverter
• D. Filter

T1E09

21. Which of the following are required for remote control operation?

• A. The control operator must indirectly manipulate the controls
• B. All these choices are correct
• C. The control operator must be at the control point
• D. A control operator is required at all times

T1C04

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

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

T1A03

23. 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 encouraged
• C. All these choices are correct
• D. It is required when in contact with foreign stations

T2B06

24. What type of signaling uses pairs of audio tones?

• A. GPRS
• B. DTMF
• C. CTCSS
• D. D-STAR

T9A09

25. What is the approximate length, in inches, of a half-wavelength 6 meter dipole antenna?

• A. 50
• B. 6
• C. 112
• D. 236

T8A01

26. Which of the following is a form of amplitude modulation?

• A. Packet radio
• B. Phase shift keying (PSK)
• C. Single sideband
• D. Spread spectrum

T1B05

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

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

T6C11

28. What is component 4 in figure T-3?

• A. Transmitter
• B. Antenna
• C. Dummy load
• D. Ground

T7C03

29. What does a dummy load consist of?

• A. A low-voltage power supply and a DC relay
• B. A high-gain amplifier and a TR switch
• C. A 50-ohm reactance used to terminate a transmission line
• D. A non-inductive resistor mounted on a heat sink

T2A05

30. How should you respond to a station calling CQ?

• A. Transmit your call sign followed by the other station's call sign
• B. Transmit the other station's call sign followed by your call sign
• C. Transmit "CQ" followed by the other station's call sign
• D. Transmit a signal report followed by your call sign

T1F08

31. What is the definition of third party communications?

• A. Temporary authorization for an unlicensed person to transmit on the amateur bands for technical experiments
• B. Operation when the transmitting equipment is licensed to a person other than the control operator
• C. A message from a control operator to another amateur station control operator on behalf of another person
• D. Amateur radio communications where three stations are in communications with one another

T9B11

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

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

T1D10

33. How does the FCC define broadcasting for the Amateur Radio Service?

• A. Two-way transmissions by amateur stations
• B. Transmissions intended for reception by the general public
• C. Transmission of messages directed only to amateur operators
• D. Any transmission made by the licensed station

T0B06

34. What is the minimum safe distance from a power line to allow when installing an antenna?

• A. The height of the power line above ground
• B. Enough so that if the antenna falls, no part of it can come closer than 10 feet to the power wires
• C. Add the height of the antenna to the height of the power line and multiply by a factor of 1.5
• D. 1/2 wavelength at the operating frequency

T4B07

35. What does a DMR "code plug" contain?

• A. Access information for repeaters and talkgroups
• B. The codec for digitizing audio
• C. Your call sign in CW for automatic identification
• D. The DMR software version