Anonymous User

Hamboozler

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

Logging in (or registering) will help the system to select questions that you need to focus on.

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
AStop operating or take steps to eliminate the harmful interference
BChange to CW mode, because this would not likely cause interference
CEstablish contact with the radiolocation station and ask them to change frequency
DNothing, because this band is allocated exclusively to the amateur service

2. - T1B03

Which frequency is within the 6 meter band?

SelectAnswer
A52.525 MHz
B222.15 MHz
C28.50 MHz
D49.00 MHz

3. - T1C13

For which licenses classes are new licenses currently available from the FCC?

SelectAnswer
ANovice, Technician Plus, General, Advanced
BNovice, Technician, General, Advanced
CTechnician, General, Amateur Extra
DTechnician, Technician Plus, General, Advanced

4. - T1D03

When is the transmission of codes or ciphers that hide the meaning of a message allowed by an amateur station?

SelectAnswer
AOnly when transmitting control commands to space stations or radio control craft
BOnly when frequencies above 1280 MHz are used
COnly when operating mobile
DOnly during contests

5. - T1E11

Who does the FCC presume to be the control operator of an amateur station, unless documentation to the contrary is in the station records?

SelectAnswer
AThe person operating the station equipment
BThe station custodian
CThe station licensee
DThe third party participant

6. - T1F01

What type of identification is being used when identifying a station on the air as Race Headquarters?

SelectAnswer
AAn official call sign reserved for RACES drills
BSSID
CBroadcast station
DTactical call sign

7. - T2A08

What is the meaning of the procedural signal CQ?

SelectAnswer
ACalling any station
BA new antenna is being tested (no station should answer)
COnly the called station should transmit
DCall on the quarter hour

8. - T2B06

What happens when the deviation of an FM transmitter is increased?

SelectAnswer
AIts output power increases
BAsymmetric modulation occurs
CIts signal occupies more bandwidth
DIts output power and bandwidth increases

9. - T2C10

What is the preamble in a formal traffic message?

SelectAnswer
AThe information needed to track the message as it passes through the amateur radio traffic handling system
BThe priority handling indicator for the message
CThe message number
DThe first paragraph of the message text

10. - T3A06

What term is commonly used to describe the rapid fluttering sound sometimes heard from mobile stations that are moving while transmitting?

SelectAnswer
APicket fencing
BPulsing
CFrequency shifting
DFlip-flopping

11. - T3B03

What are the two components of a radio wave?

SelectAnswer
AElectric and magnetic fields
BIonizing and non-ionizing radiation
CAC and DC
DVoltage and current

12. - T3C05

Which of the following effects might cause radio signals to be heard despite obstructions between the transmitting and receiving stations?

SelectAnswer
ADoppler shift
BKnife-edge diffraction
CQuantum tunneling
DFaraday rotation

13. - T4A03

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

SelectAnswer
AA regulated power supply has FCC approval
BA fuse or circuit breaker regulates the power
CPower consumption is independent of load
DIt prevents voltage fluctuations from reaching sensitive circuits

14. - T4B11

Which of the following describes the common meaning of the term "repeater offset"?

SelectAnswer
AThe time delay before the repeater timer resets
BMatching the antenna impedance to the feed line impedance
CThe distance between the repeaters transmit and receive antennas
DThe difference between the repeaters transmit and receive frequencies

15. - T5A08

Which of the following is a good electrical insulator?

SelectAnswer
AMercury
BGlass
CAluminum
DCopper

16. - T5B11

What is the approximate amount of change, measured in decibels (dB), of a power increase from 20 watts to 200 watts?

SelectAnswer
A18 dB
B12 dB
C28 dB
D10 dB

17. - T5C09

How much power is being used in a circuit when the applied voltage is 13.8 volts DC and the current is 10 amperes?

SelectAnswer
A23.8 watts
B0.7 watts
C138 watts
D3.8 watts

18. - T5D12

What is the voltage across a 10-ohm resistor if a current of 2 amperes flows through it?

SelectAnswer
A8 volts
B0.2 volts
C20 volts
D12 volts

19. - T6A06

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

SelectAnswer
AInductor
BCapacitor
CResistor
DDiode

20. - T6B09

What are the names of the two electrodes of a diode?

SelectAnswer
ASource and drain
BPlus and minus
CAnode and cathode
DGate and base

21. - T6C04

What is component 3 in figure T1?

SelectAnswer
AGround symbol
BTransistor
CLamp
DResistor

22. - T6D04

Which of the following can be used to display signal strength on a numeric scale?

SelectAnswer
AMeter
BTransistor
CRelay
DPotentiometer

23. - T7A01

Which term describes the ability of a receiver to detect the presence of a signal?

SelectAnswer
ATotal Harmonic Distortion
BSensitivity
CSelectivity
DLinearity

24. - T7B04

Which of the following is a way to reduce or eliminate interference by an amateur transmitter to a nearby telephone?

SelectAnswer
AReduce the SWR on the transmitter transmission line
BReduce the microphone gain
CPut a filter on the amateur transmitter
DPut a RF filter on the telephone

25. - T7C13

What does a dummy load consist of?

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

26. - T7D12

Which of the following precautions should be taken when measuring high voltages with a voltmeter?

SelectAnswer
AEnsure that the voltmeter is set to the correct frequency
BEnsure that the voltmeter and leads are rated for use at the voltages to be measured
CEnsure that the circuit is grounded through the voltmeter
DEnsure that the voltmeter has very low impedance

27. - T8A01

Which of the following is a form of amplitude modulation?

SelectAnswer
APacket radio
BPhase shift keying
CSingle sideband
DSpread-spectrum

28. - T8B03

Which of the following are provided by satellite tracking programs?

SelectAnswer
AMaps showing the real-time position of the satellite track over the earth
BAll of these answers are correct
CThe apparent frequency of the satellite transmission, including effects of Doppler shift
DThe time, azimuth, and elevation of the start, maximum altitude, and end of a pass

29. - T8C06

How is access to an IRLP node accomplished?

SelectAnswer
ABy entering the proper Internet password
BBy using DTMF signals
CBy obtaining a password which is sent via voice to the node
DBy using CTCSS tone codes

30. - T8D08

Which of the following may be included in packet transmissions?

SelectAnswer
AA check sum which permits error detection
BA header which contains the call sign of the station to which the information is being sent
CAll of these choices are correct
DAutomatic repeat request in case of error

31. - T9A12

What is a reason to use a properly mounted 5/8 wavelength antenna for VHF or UHF mobile service?

SelectAnswer
AIt features a very high angle of radiation and is better for communicating via a repeater
BThe 5/8 wavelength antenna completely eliminates distortion caused by reflected signals
CIt offers a lower angle of radiation and more gain than a 1/4 wavelength antenna and usually provides improved coverage
DThe 5/8 wavelength antenna offers a 10-times power gain over a 1/4 wavelength design

32. - T9B06

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

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

33. - T0A03

What is connected to the green wire in a three-wire electrical AC plug?

SelectAnswer
AHot
BThe white wire
CSafety ground
DNeutral

34. - T0B02

What is a good precaution to observe before climbing an antenna tower?

SelectAnswer
AMake sure that you wear a grounded wrist strap
BPut on a climbing harness and safety glasses
CRemove all tower grounding connections
DAll of the these choices are correct

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
CRelocate the transmitter
DIncrease the duty cycle

Figure T1