Practice Exam

T0A07

1. Where should a lightning arrester be installed in a coaxial feed line?

• A. On a grounded panel near where feed lines enter the building
• B. At the ac power service panel
• C. At the antenna feed point
• D. At the output connector of a transceiver

T3A11

2. Which region of the atmosphere can refract or bend HF and VHF radio waves?

• A. The ionosphere
• B. The stratosphere
• C. The mesosphere
• D. The troposphere

T5C05

3. What is the unit of impedance?

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

T7D10

4. What reading indicates that an ohmmeter is connected across a large, discharged capacitor?

• A. Steady full-scale reading
• B. Decreasing resistance with time
• C. Increasing resistance with time
• D. Alternating between open and short circuit

T8D04

5. What type of transmission is indicated by the term "NTSC?"

• A. An analog fast-scan color TV signal
• B. A frame compression scheme for TV signals
• C. A Normal Transmission mode in Static Circuit
• D. A special mode for satellite uplink

T1E04

6. What determines the transmitting frequency privileges of an amateur station?

• A. The class of operator license held by the control operator
• B. The frequencies printed on the license grant
• C. The frequency authorized by the frequency coordinator
• D. The highest class of operator license held by anyone on the premises

T4A05

7. Where should an RF power meter be installed?

• A. In parallel with the push-to-talk line and the antenna
• B. In the feed line, between the transmitter and antenna
• C. In the power supply cable, as close as possible to the radio
• D. At the power supply output

T4B12

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

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

T3B08

9. What frequency range is referred to as VHF?

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

T8A04

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

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

T1B05

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

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

T7A07

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

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

T1A09

13. Who selects a Frequency Coordinator?

• A. The local chapter of the Office of National Council of Independent Frequency Coordinators
• B. The FCC Office of Spectrum Management and Coordination Policy
• C. Amateur operators in a local or regional area whose stations are eligible to be repeater or auxiliary stations
• D. FCC Regional Field Office

T9B12

14. What is standing wave ratio (SWR)?

• A. The ratio of amplifier power output to input
• B. The transmitter efficiency ratio
• C. A measure of how well a load is matched to a transmission line
• D. An indication of the quality of your station's ground connection

T1C08

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

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

T7B10

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

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

T6D07

17. Which of the following is commonly used as a visual indicator?

• A. LED
• B. Bipolar transistor
• C. Zener diode
• D. FET

T8B08

18. What is meant by the statement that a satellite is operating in U/V mode?

• A. The satellite frequencies are usually variable
• B. The satellite uplink is in the 15 meter band and the downlink is in the 10 meter band
• C. The satellite operates using ultraviolet frequencies
• D. The satellite uplink is in the 70 centimeter band and the downlink is in the 2 meter band

T7C05

19. Why do most solid-state transmitters reduce output power as SWR increases beyond a certain level?

• A. To protect the output amplifier transistors
• B. Because power supplies cannot supply enough current at high SWR
• C. To comply with FCC rules on spectral purity
• D. To lower the SWR on the transmission line

T2A06

20. Which of the following is required when making on-the-air test transmissions?

• A. Identify the transmitting station
• B. Conduct tests only between 10 p.m. and 6 a.m. local time
• C. Notify the FCC of the transmissions
• D. All these choices are correct

T5D06

21. What is the resistance of a circuit that draws 4 amperes from a 12-volt source?

• A. 48 ohms
• B. 3 ohms
• C. 16 ohms
• D. 8 ohms

T2C05

22. What does the term "traffic" refer to in net operation?

• A. Requests to activate the net by a served agency
• B. The number of stations checking in and out of a net
• C. Operation by mobile or portable stations
• D. Messages exchanged by net stations

T6C05

23. What is component 4 in figure T-1?

• A. Resistor
• B. Battery
• C. Ground symbol
• D. Transistor

T2B09

24. Why are simplex channels designated in the VHF/UHF band plans?

• A. So stations within range of each other can communicate without tying up a repeater
• B. For contest operation
• C. For working DX only
• D. So stations with simple transmitters can access the repeater without automated offset

T8C05

25. What is a grid locator?

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

T0B04

26. Which of the following is an important safety precaution to observe when putting up an antenna tower?

• A. Insulate the base of the tower to avoid lightning strikes
• B. All these choices are correct
• C. Look for and stay clear of any overhead electrical wires
• D. Wear a ground strap connected to your wrist at all times

T1D09

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

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

T9A09

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

• A. 236
• B. 112
• C. 6
• D. 50

T0C05

29. Why do exposure limits vary with frequency?

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

T6B04

30. Which of the following components can consist of three regions of semiconductor material?

• A. Transistor
• B. Pentagrid converter
• C. Alternator
• D. Triode

T5B13

31. Which is equal to 2425 MHz?

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

T1F08

32. 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. A message from a control operator to another amateur station control operator on behalf of another person
• C. Amateur radio communications where three stations are in communications with one another
• D. Operation when the transmitting equipment is licensed to a person other than the control operator

T6A06

33. What type of electrical component stores energy in a magnetic field?

• A. Varistor
• B. Diode
• C. Inductor
• D. Capacitor

T3C09

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

T5A05

35. What is the electrical term for the force that causes electron flow?

• A. Inductance
• B. Voltage
• C. Capacitance
• D. Ampere-hours