Practice Exam

T2C04

1. What is RACES?

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

T7A09

2. What is the function of the SSB/CW-FM switch on a VHF power amplifier?

• A. Change the frequency range of the amplifier to operate in the proper segment of the band
• B. Set the amplifier for proper operation in the selected mode
• C. Change the mode of the transmitted signal
• D. Reduce the received signal noise

T6A06

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

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

T0B07

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

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

T9B01

5. What is a benefit of low SWR?

• A. Reduced television interference
• B. Less antenna wear
• C. Reduced signal loss
• D. All these choices are correct

T1D09

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

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

T7D03

7. When configured to measure current, how is a multimeter connected to a component?

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

T5B01

8. How many milliamperes is 1.5 amperes?

• A. 15 milliamperes
• B. 1500 milliamperes
• C. 15,000 milliamperes
• D. 150 milliamperes

T6B04

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

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

T4B02

10. Which of the following can be used to enter a transceiver's operating frequency?

• A. All these choices are correct
• B. The CTCSS or DTMF encoder
• C. The keypad or VFO knob
• D. The Automatic Frequency Control

T5D05

11. What is the resistance of a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?

• A. 8 ohms
• B. 18 ohms
• C. 13.5 ohms
• D. 0.125 ohms

T1F05

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

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

T0A02

13. What health hazard is presented by electrical current flowing through the body?

• A. All these choices are correct
• B. It may cause involuntary muscle contractions
• C. It may cause injury by heating tissue
• D. It may disrupt the electrical functions of cells

T5A04

14. What are the units of electrical resistance?

• A. Coulombs
• B. Ohms
• C. Mhos
• D. Siemens

T7C08

15. Which instrument can be used to determine SWR?

• A. Directional wattmeter
• B. Iambic pentameter
• C. Ohmmeter
• D. Voltmeter

T8C03

16. What operating activity involves contacting as many stations as possible during a specified period?

• A. Net operations
• B. Contesting
• C. Simulated emergency exercises
• D. Public service events

T1E11

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

T1B11

18. What is the maximum peak envelope power output for Technician class operators in their HF band segments?

• A. 50 watts
• B. 10 watts
• C. 100 watts
• D. 200 watts

T6C11

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

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

T1A11

20. When is willful interference to other amateur radio stations permitted?

• A. At any time, stations in the Amateur Radio Service are not protected from willful interference
• B. When making short test transmissions
• C. To stop another amateur station that is breaking the FCC rules
• D. At no time

T3B11

21. What is the approximate velocity of a radio wave in free space?

• A. 300,000,000 meters per second
• B. 300,000,000 miles per hour
• C. 150,000 meters per second
• D. 150,000 miles per hour

T4A06

22. What signals are used in a computer-radio interface for digital mode operation?

• A. Antenna and RF power
• B. Receive and transmit mode, status, and location
• C. NMEA GPS location and DC power
• D. Receive audio, transmit audio, and transmitter keying

T2A08

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

• A. Only the called station should transmit
• B. Calling any station
• C. Call on the quarter hour
• D. Test transmission, no reply expected

T3C11

24. Why is the radio horizon for VHF and UHF signals more distant than the visual horizon?

• A. The atmosphere refracts radio waves slightly
• B. Radio waves are blocked by dust particles
• C. Radio signals move somewhat faster than the speed of light
• D. Radio waves are not blocked by dust particles

T8B05

25. What is a satellite beacon?

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

T1C05

26. Which of the following is a valid Technician class call sign format?

• A. KF1XXX
• B. W1XX
• C. KA1X
• D. All these choices are correct

T0C11

27. What is the definition of duty cycle during the averaging time for RF exposure?

• A. The percentage of time that a transmitter is not transmitting
• B. The difference between the PEP and average power output of a transmitter
• C. The percentage of time that a transmitter is transmitting
• D. The difference between the lowest power output and the highest power output of a transmitter

T5C03

28. What describes the ability to store energy in a magnetic field?

• A. Capacitance
• B. Resistance
• C. Admittance
• D. Inductance

T6D03

29. Which of the following is a reason to use shielded wire?

• A. To couple the wire to other signals
• B. To increase the current carrying capability of the wire
• C. To prevent coupling of unwanted signals to or from the wire
• D. To decrease the resistance of DC power connections

T9A08

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

• A. 19
• B. 12
• C. 112
• D. 50

T2B05

31. What would cause your FM transmission audio to be distorted on voice peaks?

• A. Your transmit power is too high
• B. You are talking too loudly
• C. Your repeater offset is inverted
• D. You need to talk louder

T8A02

32. What type of modulation is commonly used for VHF packet radio transmissions?

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

T8D10

33. Which of the following operating activities is supported by digital mode software in the WSJT-X software suite?

• A. Weak signal propagation beacons
• B. Earth-Moon-Earth
• C. All these choices are correct
• D. Meteor scatter

T3A11

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

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

T7B06

35. 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. Immediately turn off your transmitter and contact the nearest FCC office for assistance
• B. 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
• C. All these choices are correct
• D. Install a harmonic doubler on the output of your transmitter and tune it until the interference is eliminated