Practice Exam

T5B08

1. How many microfarads are 1,000,000 picofarads?

• A. 1000 microfarads
• B. 1,000,000,000 microfarads
• C. 0.001 microfarads
• D. 1 microfarad

T0C07

2. What could happen if a person accidentally touched your antenna while you were transmitting?

• A. They might receive a painful RF burn
• B. They might develop radiation poisoning
• C. Touching the antenna could cause television interference
• D. All of these choices are correct

T8C07

3. What is the maximum power allowed when transmitting telecommand signals to radio controlled models?

• A. 25 watts
• B. 1 watt
• C. 1500 watts
• D. 500 milliwatts

T3A02

4. Why are UHF signals often more effective from inside buildings than VHF signals?

• A. This is incorrect; VHF works better than UHF inside buildings
• B. VHF signals lose power faster over distance
• C. The shorter wavelength allows them to more easily penetrate the structure of buildings
• D. UHF antennas are more efficient than VHF antennas

T5A11

5. What is the basic unit of electromotive force?

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

T1C11

6. If your license has expired and is still within the allowable grace period, may you continue to operate a transmitter on amateur service frequencies?

• A. Yes, but only during authorized nets
• B. Yes, but only if you identify using the suffix "GP"
• C. Yes, for up to two years
• D. No, transmitting is not allowed until the ULS database shows that the license has been renewed

T7C10

7. Why should the outer jacket of coaxial cable be resistant to ultraviolet light?

• A. Ultraviolet resistant jackets prevent harmonic radiation
• B. Ultraviolet and RF signals can mix together, causing interference
• C. Ultraviolet light can increase losses in the cable's jacket
• D. Ultraviolet light can damage the jacket and allow water to enter the cable

T1D08

8. When may the control operator of an amateur station receive compensation for operating the station?

• A. When re-broadcasting weather alerts during a RACES net
• B. When engaging in communications on behalf of their employer
• C. When notifying other amateur operators of the availability for sale or trade of apparatus
• D. When the communication is incidental to classroom instruction at an educational institution

T3B11

9. What is the approximate velocity of a radio wave as it travels through free space?

• A. 186,000 miles per hour
• B. 300,000,000 meters per second
• C. 300,000 miles per hour
• D. 3000 kilometers per second

T6C12

10. What do the symbols on an electrical circuit schematic diagram represent?

• A. Digital codes
• B. Electrical components
• C. Logic states
• D. Traffic nodes

T0A12

11. What kind of hazard might exist in a power supply when it is turned off and disconnected?

• A. You might receive an electric shock from stored charge in large capacitors
• B. The fuse might blow if you remove the cover
• C. Static electricity could damage the grounding system
• D. Circulating currents inside the transformer might cause damage

T1A05

12. What is the FCC Part 97 definition of a space station?

• A. An Earth satellite that carries one of more amateur operators
• B. An amateur station located more than 50 km above the Earth's surface
• C. An amateur station located less than 25 km above the Earth's surface
• D. Any multi-stage satellite

T1B01

13. What is the ITU?

• A. A United Nations agency for information and communication technology issues
• B. An agency of the United States Department of Telecommunications Management
• C. A department of the FCC
• D. An independent frequency coordination agency

T8A10

14. What is the typical bandwidth of analog fast-scan TV transmissions on the 70 cm band?

• A. About 6 MHz
• B. About 1 MHz
• C. More than 10 MHz
• D. About 3 MHz

T1F10

15. Who is accountable should a repeater inadvertently retransmit communications that violate the FCC rules?

• A. The owner of the repeater
• B. The control operator of the repeater
• C. The control operator of the originating station
• D. Both the originating station and the repeater owner

T8D07

16. What is PSK31?

• A. A low-rate data transmission mode
• B. A method of reducing noise interference to FM signals
• C. A high-rate data transmission mode
• D. A method of compressing digital television signal

T7A08

17. Which of the following circuits combines a speech signal and an RF carrier?

• A. Discriminator
• B. Noise blanker
• C. Beat frequency oscillator
• D. Modulator

T1E08

18. What type of control is being used for a repeater when the control operator is not present at a control point?

• A. Local control
• B. Unattended
• C. Remote control
• D. Automatic control

T6A10

19. What is the nominal voltage of a fully charged nickel-cadmium cell?

• A. 1.0 volts
• B. 1.5 volts
• C. 2.2 volts
• D. 1.2 volts

T2B02

20. What is the term used to describe the use of a sub-audible tone transmitted with normal voice audio to open the squelch of a receiver?

• A. DTMF
• B. CTCSS
• C. Carrier squelch
• D. Tone burst

T0B11

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

• A. Underwriters Laboratories' recommended practices
• B. FAA tower lighting regulations
• C. Local electrical codes
• D. FCC Part 97 Rules

T2C05

22. What is the Radio Amateur Civil Emergency Service?

• A. A radio service organized by amateur operators to assist non-military persons
• B. A radio service using amateur stations for emergency management or civil defense communications
• C. An emergency radio service organized by amateur operators
• D. A radio service organized to provide communications at civic events

T9B01

23. Why is it important to have a low SWR in an antenna system that uses coaxial cable feedline?

• A. To reduce television interference
• B. To prolong antenna life
• C. All of these choices are correct
• D. To allow the efficient transfer of power and reduce losses

T3C07

24. What band is best suited to communicating via meteor scatter?

• A. 2 meters
• B. 70 cm
• C. 10 meters
• D. 6 meters

T5C10

25. How much power is being used in a circuit when the applied voltage is 12 volts DC and the current is 2.5 amperes?

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

T5D02

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

• A. Voltage (E) equals current (I) divided by resistance (R)
• B. Voltage (E) equals current (I) multiplied by resistance (R)
• C. Voltage (E) equals current (I) minus resistance (R)
• D. Voltage (E) equals current (I) added to resistance (R)

T4B06

27. Which of the following controls could be used if the voice pitch of a single-sideband signal seems too high or low?

• A. The tone squelch
• B. The AGC or limiter
• C. The receiver RIT or clarifier
• D. The bandwidth selection

T7B08

28. What should you do if a "Part 15" device in your neighbor's home is causing harmful interference to your amateur station?

• A. Check your station and make sure it meets the standards of good amateur practice
• B. Work with your neighbor to identify the offending device
• C. All of these choices are correct
• D. Politely inform your neighbor about the rules that require him to stop using the device if it causes interference

T7D09

29. What is the characteristic appearance of a "cold" solder joint?

• A. A greenish tint
• B. A bright or shiny surface
• C. Dark black spots
• D. A grainy or dull surface

T6B02

30. What electronic component allows current to flow in only one direction?

• A. Fuse
• B. Resistor
• C. Diode
• D. Driven Element

T4A03

31. Which is a good reason to use a regulated power supply for communications equipment?

• A. It prevents voltage fluctuations from reaching sensitive circuits
• B. A fuse or circuit breaker regulates the power
• C. A regulated power supply has FCC approval
• D. Power consumption is independent of load

T8B06

32. What can be used to determine the time period during which an amateur satellite or space station can be accessed?

• A. A satellite tracking program
• B. A telescope
• C. A field strength meter
• D. A GPS receiver

T9A01

33. What is a beam antenna?

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

T6D10

34. What is the function of component 2 in Figure T1?

• A. Control the flow of current
• B. Supply electrical energy
• C. Convert electrical energy into radio waves
• D. Give off light when current flows through it

T2A08

35. What is the meaning of the procedural signal "CQ"?

• A. Calling any station
• B. A new antenna is being tested (no station should answer)
• C. Only the called station should transmit
• D. Call on the quarter hour