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US Amateur Radio - Technician (Element 2, 2014-2018) Practice Test

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1. - T1A14

What must you do if you are operating on the 23 cm band and learn that you are interfering with a radiolocation station outside the United States?

SelectAnswer
AEstablish contact with the radiolocation station and ask them to change frequency
BStop operating or take steps to eliminate the harmful interference
CNothing, because this band is allocated exclusively to the amateur service
DChange to CW mode, because this would not likely cause interference

2. - T1B10

Which of the bands above 30 MHz that are available to Technician Class operators have mode-restricted sub-bands?

SelectAnswer
AThe 6 meter, 2 meter, and 70 cm bands
BThe 2 meter and 70 cm bands
CThe 2 meter and 13 cm bands
DThe 6 meter, 2 meter, and 1.25 meter bands

3. - T1C12

Who may select a desired call sign under the vanity call sign rules?

SelectAnswer
AOnly licensed amateurs with an extra class license
BOnly licensed amateurs with general or extra class licenses
COnly an amateur licensee who has been licensed continuously for more than 10 years
DAny licensed amateur

4. - T1D11

When may an amateur station transmit without identifying?

SelectAnswer
AWhen transmitting signals to control a model craft
BWhen the transmissions are unmodulated
CWhen the transmissions are of a brief nature to make station adjustments
DWhen the transmitted power level is below 1 watt

5. - T1E02

Who may a station licensee designate to be the control operator of an amateur station?

SelectAnswer
AOnly a person for whom an amateur operator/primary station license grant appears in the FCC database or who is authorized for alien reciprocal operation
BAny family member of the station licensee
CAny person over the age of 18
DAny U.S. citizen or registered alien

6. - T1F10

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

SelectAnswer
AThe control operator of the originating station
BBoth the originating station and the repeater owner
CThe control operator of the repeater
DThe owner of the repeater

7. - T2A06

What must an amateur operator do when making on-air transmissions to test equipment or antennas?

SelectAnswer
AState the purpose of the test during the test procedure
BMake test transmissions only after 10:00 p.m. local time
CProperly identify the transmitting station
DNotify the FCC of the test transmission

8. - T2B05

What determines the amount of deviation of an FM (as opposed to PM) signal?

SelectAnswer
AThe amplitude of the modulating signal
BThe relative phase of the modulating signal and the carrier
CBoth the frequency and amplitude of the modulating signal
DThe frequency of the modulating signal

9. - T2C06

Which of the following is an accepted practice to get the immediate attention of a net control station when reporting an emergency?

SelectAnswer
ARepeat the words SOS three times followed by the call sign of the reporting station
BPlay a pre-recorded emergency alert tone followed by your call sign
CPress the push-to-talk button three times
DBegin your transmission by saying "Priority" or "Emergency" followed by your call sign

10. - T3A10

What may occur if data signals propagate over multiple paths?

SelectAnswer
ATransmission rates can be increased by a factor equal to the number of separate paths observed
BNo significant changes will occur if the signals are transmitting using FM
CError rates are likely to increase
DTransmission rates must be decreased by a factor equal to the number of separate paths observed

11. - T3B01

What is the name for the distance a radio wave travels during one complete cycle?

SelectAnswer
AWavelength
BWave spread
CWaveform
DWave speed

12. - T3C12

Which of the following bands may provide long distance communications during the peak of the sunspot cycle?

SelectAnswer
ASix or ten meters
BAll of these choices are correct
C70 centimeters or 1.25 meters
D23 centimeters

13. - T4A11

Where should the negative return connection of a mobile transceiver's power cable be connected?

SelectAnswer
AThrough the transceivers mounting bracket
BAt the antenna mount
CTo any metal part of the vehicle
DAt the battery or engine block ground strap

14. - T4B03

What is the purpose of the squelch control on a transceiver?

SelectAnswer
ATo set the highest level of volume desired
BTo adjust the automatic gain control
CTo mute receiver output noise when no signal is being received
DTo set the transmitter power level

15. - T5A01

Electrical current is measured in which of the following units?

SelectAnswer
AVolts
BOhms
CWatts
DAmperes

16. - T5B12

Which of the following frequencies is equal to 28,400 kHz?

SelectAnswer
A284.00 MHz
B2.800 MHz
C28.400 MHz
D28.400 kHz

17. - T5C08

What is the formula used to calculate electrical power in a DC circuit?

SelectAnswer
APower (P) equals voltage (E) multiplied by current (I)
BPower (P) equals voltage (E) divided by current (I)
CPower (P) equals voltage (E) plus current (I)
DPower (P) equals voltage (E) minus current (I)

18. - T5D10

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

SelectAnswer
A2.5 volts
B1.5 volts
C1 volt
D0.25 volts

19. - T6A05

What type of electrical component consists of two or more conductive surfaces separated by an insulator?

SelectAnswer
ACapacitor
BResistor
COscillator
DPotentiometer

20. - T6B10

What are the three electrodes of a PNP or NPN transistor?

SelectAnswer
ACathode, grid, and plate
BSource, gate, and drain
CEmitter, base, and collector
DCathode, drift cavity, and collector

21. - T6C04

What is component 3 in figure T1?

SelectAnswer
ALamp
BTransistor
CResistor
DGround symbol

22. - T6D06

What component is commonly used to change 120V AC house current to a lower AC voltage for other uses?

SelectAnswer
ADiode
BTransistor
CTransformer
DVariable capacitor

23. - T7A02

What is a transceiver?

SelectAnswer
AA type of antenna matching network
BA unit combining the functions of a transmitter and a receiver
CA component in a repeater which filters out unwanted interference
DA type of antenna switch

24. - T7B06

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

SelectAnswer
AImmediately turn off your transmitter and contact the nearest FCC office for assistance
BTell them that your license gives you the right to transmit and nothing can be done to reduce the interference
CMake 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
DInstall a harmonic doubler on the output of your transmitter and tune it until the interference is eliminated

25. - T7C13

What does a dummy load consist of?

SelectAnswer
AA high-gain amplifier and a TR switch
BA non-inductive resistor and a heat sink
CA low voltage power supply and a DC relay
DA 50 ohm reactance used to terminate a transmission line

26. - T7D06

Which of the following might damage a multimeter?

SelectAnswer
AMeasuring a voltage too small for the chosen scale
BLeaving the meter in the milliamps position overnight
CAttempting to measure voltage when using the resistance setting
DNot allowing it to warm up properly

27. - T8A04

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

SelectAnswer
AAM
BPSK
CFM
DSSB

28. - T8B05

What is a satellite beacon?

SelectAnswer
AThe primary transmit antenna on the satellite
BAn indicator light that that shows where to point your antenna
CA reflective surface on the satellite
DA transmission from a space station that contains information about a satellite

29. - T8C01

Which of the following methods is used to locate sources of noise interference or jamming?

SelectAnswer
APhase locking
BDoppler radar
CEcholocation
DRadio direction finding

30. - T8D07

What is PSK31?

SelectAnswer
AA method of compressing digital television signals
BA method of reducing noise interference to FM signals
CA high-rate data transmission mode
DA low-rate data transmission mode

31. - T9A14

Which of the following terms describes a type of loading when referring to an antenna?

SelectAnswer
AInserting an inductor in the radiating portion of the antenna to make it electrically longer
BMaking the antenna heavier so it will resist wind effects when in motion
CInstalling a spring at the base of the antenna to absorb the effects of collisions with other objects
DInserting a resistor in the radiating portion of the antenna to make it resonant

32. - T9B06

Which of the following connectors is most suitable for frequencies above 400 MHz?

SelectAnswer
AA DB-25 connector
BAn RS-213 connector
CA UHF (PL-259/SO-239) connector
DA Type N connector

33. - T0A11

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

SelectAnswer
AYou might receive an electric shock from the charged stored in large capacitors
BThe fuse might blow if you remove the cover
CStatic electricity could damage the grounding system
DCirculating currents inside the transformer might cause damage

34. - T0B12

Which of the following is good practice when installing ground wires on a tower for lightning protection?

SelectAnswer
AMake sure that all bends in the ground wires are clean, right angle bends
BEnsure that connections are short and direct
CAll of these choices are correct
DPut a loop in the ground connection to prevent water damage to the ground system

35. - T0C08

Which of the following actions might amateur operators take to prevent exposure to RF radiation in excess of FCC-supplied limits?

SelectAnswer
ARelocate antennas
BAll of these choices are correct
CIncrease the duty cycle
DRelocate the transmitter