Practice Exam

T7B06

1. Which of the following actions should you take if a neighbor tells you that your station's transmissions are interfering with their radio or TV reception?

• A. Install a harmonic doubler on the output of your transmitter and tune it until the interference is eliminated
• B. Immediately turn off your transmitter and contact the nearest FCC office for assistance
• C. Make sure that your station is functioning properly and that it does not cause interference to your own radio or television when it is tuned to the same channel
• D. All these choices are correct

T6C06

2. What is component 6 in figure T-2?

• A. Capacitor
• B. Regulator IC
• C. Transistor
• D. Resistor

T9A08

3. What is the approximate length, in inches, of a quarter-wavelength vertical antenna for 146 MHz?

• A. 12
• B. 50
• C. 112
• D. 19

T2C01

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

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

T2A03

5. What is a common repeater frequency offset in the 70 cm band?

• A. Plus or minus 500 kHz
• B. Plus or minus 5 MHz
• C. Plus or minus 1 MHz
• D. Plus or minus 600 kHz

T7D09

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

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

T8B09

7. What causes spin fading of satellite signals?

• A. Doppler shift of the received signal
• B. Interfering signals within the satellite uplink band
• C. Rotation of the satellite and its antennas
• D. Circular polarized noise interference radiated from the sun

T5B11

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

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

T5C10

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

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

T1B03

10. Which frequency is in the 6 meter amateur band?

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

T2B13

11. What is the purpose of a squelch function?

• A. Mute the receiver audio when a signal is not present
• B. Reduce a CW transmitter's key clicks
• C. Eliminate parasitic oscillations in an RF amplifier
• D. Reduce interference from impulse noise

T7C03

12. What does a dummy load consist of?

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

T1F08

13. What is the definition of third party communications?

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

T1C11

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

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

T9B08

15. Which of the following is a source of loss in coaxial feed line?

• A. Multiple connectors in the line
• B. Water intrusion into coaxial connectors
• C. All these choices are correct
• D. High SWR

T6D02

16. What is a relay?

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

T1A04

17. How many operator/primary station license grants may be held by any one person?

• A. One for each band on which the person plans to operate
• B. No more than two
• C. One for each permanent station location from which the person plans to operate
• D. One

T0B09

18. Why should you avoid attaching an antenna to a utility pole?

• A. The antenna will not work properly because of induced voltages
• B. The antenna could contact high-voltage power lines
• C. The 60 Hz radiations from the feed line may increase the SWR
• D. All these choices are correct

T8D01

19. Which of the following is a digital communications mode?

• A. IEEE 802.11
• B. Packet radio
• C. All these choices are correct
• D. FT8

T1E11

20. Who does the FCC presume to be the control operator of an amateur station, unless documentation to the contrary is in the station records?

• A. The person operating the station equipment
• B. The third party participant
• C. The station licensee
• D. The station custodian

T3A03

21. What antenna polarization is normally used for long-distance CW and SSB contacts on the VHF and UHF bands?

• A. Horizontal
• B. Left-hand circular
• C. Right-hand circular
• D. Vertical

T8A04

22. Which type of modulation is commonly used for VHF and UHF voice repeaters?

• A. FM or PM
• B. PSK
• C. SSB
• D. AM

T4B08

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

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

T3B08

24. What frequency range is referred to as VHF?

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

T3C03

25. What is a characteristic of VHF signals received via auroral backscatter?

• A. They occur only during winter nighttime hours
• B. They are distorted and signal strength varies considerably
• C. They are generally strongest when your antenna is aimed west
• D. They are often received from 10,000 miles or more

T1D09

26. When may amateur stations transmit information in support of broadcasting, program production, or news gathering, assuming no other means is available?

• A. Where noncommercial programming is gathered and supplied exclusively to the National Public Radio network
• B. When such communications are directly related to the immediate safety of human life or protection of property
• C. Never
• D. When broadcasting communications to or from the space shuttle

T5D02

27. What formula is used to calculate voltage in a circuit?

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

T6A01

28. What electrical component opposes the flow of current in a DC circuit?

• A. Resistor
• B. Inverter
• C. Inductor
• D. Transformer

T4A07

29. Which of the following connections is made between a computer and a transceiver to use computer software when operating digital modes?

• A. Computer "line out" to transceiver push-to-talk
• B. Computer "line in" to transceiver speaker connector
• C. Computer "line out" to transceiver speaker connector
• D. Computer "line in" to transceiver push-to-talk

T7A10

30. 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

T0C08

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

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

T6B07

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

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

T5A07

33. Why are metals generally good conductors of electricity?

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

T8C10

34. What is required before using the EchoLink system?

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

T0A05

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

• A. The power supply ripple would greatly increase
• B. The larger fuse would be likely to blow because it is rated for higher current
• C. All these choices are correct
• D. Excessive current could cause a fire