Practice Exam

T8A11

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

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

T6B01

2. Which is true about forward voltage drop in a diode?

• A. It is lower in some diode types than in others
• B. It is proportional to peak inverse voltage
• C. It has no impact on the voltage delivered to the load
• D. It indicates that the diode is defective

T7C01

3. What is the primary purpose of a dummy load?

• A. To improve the efficiency of an antenna
• B. To improve the signal-to-noise ratio of a receiver
• C. To prevent transmitting signals over the air when making tests
• D. To prevent over-modulation of a transmitter

T7A10

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

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

T8C05

5. What is a grid locator?

• A. A letter-number designator assigned to a geographic location
• B. An instrument for neutralizing a final amplifier
• C. An instrument for radio direction finding
• D. A letter-number designator assigned to an azimuth and elevation

T9A06

6. Which of the following types of antenna offers the greatest gain?

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

T8B08

7. 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

T6D04

8. Which of the following displays an electrical quantity as a numeric value?

• A. Meter
• B. Transistor
• C. Relay
• D. Potentiometer

T4B12

9. What is the result of tuning an FM receiver above or below a signal's frequency?

• A. Sideband inversion
• B. Generation of a heterodyne tone
• C. Change in audio pitch
• D. Distortion of the signal's audio

T3A10

10. What effect does multi-path propagation have on data transmissions?

• A. Transmission rates must be decreased by a factor equal to the number of separate paths observed
• B. Error rates are likely to increase
• C. Transmission rates must be increased by a factor equal to the number of separate paths observed
• D. No significant changes will occur if the signals are transmitted using FM

T0A01

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

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

T2C01

12. 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

T7B06

13. 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. All these choices are correct
• 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. Immediately turn off your transmitter and contact the nearest FCC office for assistance

T1C03

14. What types of international communications are an FCC-licensed amateur radio station permitted to make?

• A. Communications incidental to the purposes of the Amateur Radio Service and remarks of a personal character
• B. Only communications incidental to contest exchanges; all other communications are prohibited
• C. Communications incidental to conducting business or remarks of a personal nature
• D. Any communications that would be permitted by an international broadcast station

T5A12

15. What describes the number of times per second that an alternating current makes a complete cycle?

• A. Pulse rate
• B. Frequency
• C. Wavelength
• D. Speed

T3C08

16. What causes tropospheric ducting?

• A. Discharges of lightning during electrical storms
• B. Temperature inversions in the atmosphere
• C. Updrafts from hurricanes and tornadoes
• D. Sunspots and solar flares

T8D06

17. What does the abbreviation "PSK" mean?

• A. Packet Short Keying
• B. Phase Shift Keying
• C. Pulse Shift Keying
• D. Phased Slide Keying

T4A08

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

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

T1D04

19. Under what conditions is an amateur station authorized to transmit music using a phone emission?

• A. When the music produces no spurious emissions
• B. When the music is transmitted above 1280 MHz
• C. When transmissions are limited to less than three minutes per hour
• D. When incidental to an authorized retransmission of manned spacecraft communications

T3B04

20. What is the velocity of a radio wave traveling through free space?

• A. Speed of light
• B. Speed of sound
• C. Speed inversely proportional to its wavelength
• D. Speed that increases as the frequency increases

T6C12

21. Which of the following is accurately represented in electrical schematics?

• A. Wire lengths
• B. Component connections
• C. Physical appearance of components
• D. All these choices are correct

T1F05

22. What method of call sign identification is required for a station transmitting phone signals?

• A. Send the call sign using a CW or phone emission
• B. Send the call sign followed by the indicator RPT
• C. Send the call sign using only a phone emission
• D. Send the call sign followed by the indicator R

T1B04

23. Which amateur band includes 146.52 MHz?

• A. 70 centimeters
• B. 6 meters
• C. 2 meters
• D. 20 meters

T5B09

24. Which decibel value most closely represents a power increase from 5 watts to 10 watts?

• A. 3 dB
• B. 5 dB
• C. 10 dB
• D. 2 dB

T5D10

25. What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows through it?

• A. 0.25 volts
• B. 1.5 volts
• C. 1 volt
• D. 2.5 volts

T0C05

26. Why do exposure limits vary with frequency?

• A. Higher frequency RF fields are transient in nature
• B. The human body absorbs more RF energy at some frequencies than at others
• C. Lower frequency RF fields have more energy than higher frequency fields
• D. Lower frequency RF fields do not penetrate the human body

T5C05

27. What is the unit of impedance?

• A. The ohm
• B. The ampere
• C. The volt
• D. The coulomb

T9B09

28. What can cause erratic changes in SWR?

• A. Over-modulation
• B. Loose connection in the antenna or feed line
• C. Overload from a strong local station
• D. Local thunderstorm

T2B04

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

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

T6A03

30. What electrical parameter is controlled by a potentiometer?

• A. Field strength
• B. Resistance
• C. Inductance
• D. Capacitance

T7D02

31. How is a voltmeter connected to a component to measure applied voltage?

• A. In parallel
• B. In quadrature
• C. In series
• D. In phase

T1E10

32. Which of the following is an example of remote control as defined in Part 97?

• A. Repeater operation
• B. Operating the station over the internet
• C. Controlling a model aircraft, boat, or car by amateur radio
• D. All these choices are correct

T0B07

33. Which of the following is an important safety rule to remember when using a crank-up tower?

• A. All these choices are correct
• B. This type of tower must not be climbed unless it is retracted, or mechanical safety locking devices have been installed
• C. This type of tower must never be painted
• D. This type of tower must never be grounded

T2A01

34. What is a common repeater frequency offset in the 2 meter band?

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

T1A02

35. Which agency regulates and enforces the rules for the Amateur Radio Service in the United States?

• A. FEMA
• B. All these choices are correct
• C. Homeland Security
• D. The FCC