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US Amateur Radio - Technician (Element 2, 2018-2022) Practice Test

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1. - T0A07

Which of these precautions should be taken when installing devices for lightning protection in a coaxial cable feed line?

SelectAnswer
AKeep the ground wires from each protector separate and connected to station ground
BInclude a series switch in the ground line of each protector to prevent RF overload from inadvertently damaging the protector
CInclude a parallel bypass switch for each protector so that it can be switched out of the circuit when running high power
DMount all of the protectors on a metal plate that is in turn connected to an external ground rod

2. - T0B02

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

SelectAnswer
ARemove all tower grounding connections
BAll of these choices are correct
CPut on a carefully inspected climbing harness(fall arrester)and safety glasses
DMake sure that you wear a grounded wrist strap

3. - T0C05

Why do exposure limits vary with frequency?

SelectAnswer
AThe human body absorbs more RF energy at some frequencies than at others
BHigher frequency RF fields are transient in nature
CLower frequency RF fields have more energy than higher frequency fields
DLower frequency RF fields do not penetrate the human body

4. - T1A09

Who selects a Frequency Coordinator?

SelectAnswer
AFCC Regional Field Office
BAmateur operators in a local or regional area whose stations are eligible to be repeater or auxiliary stations
CThe FCC Office of Spectrum Management and Coordination Policy
DThe local chapter of the Office of National Council of Independent Frequency Coordinators

5. - T1B03

Which frequency is within the 6 meter amateur band?

SelectAnswer
A52.525 MHz
B28.50 MHz
C49.00 MHz
D222.15 MHz

6. - T1C10

How soon after passing the examination for your first amateur radio license may you operate a transmitter on an Amateur Radio Service frequency?

SelectAnswer
A30 days after the test date
BYou must wait until you receive your license in the mail from the FCC
CAs soon as your operator/station license grant appears in the FCC’s license database
DImmediately

7. - T1D02

Under which of the following circumstances may an amateur radio station make one-way transmissions?

SelectAnswer
AAt any time, as long as the material being transmitted did not originate from a commercial broadcast station
BUnder no circumstances
CAt any time, as long as no music is transmitted
DWhen transmitting code practice, information bulletins, or transmissions necessary to provide emergency communications

8. - 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 third-party participant
CThe station custodian
DThe station licensee

9. - T1F04

Which of the following is an acceptable language to use for station identification when operating in a phone sub-band?

SelectAnswer
AEnglish, French, or Spanish
BThe English language
CAny language recognized by the United Nations
DAny language recognized by the ITU

10. - T2A10

What is a band plan, beyond the privileges established by the FCC?

SelectAnswer
AA voluntary guideline for using different modes or activities within an amateur band
BA plan devised by a club to indicate frequency band usage
CA list of scheduled net frequencies
DA mandated list of operating schedules

11. - T2B01

What is the most common use of the “reverse split” function of a VHF/UHF transceiver?

SelectAnswer
AListen on a repeater’s input frequency
BListen on a repeater’s output frequency
CIncrease power output
DReduce power output

12. - T2C07

Which of the following is an accepted practice for an amateur operator who has checked into a net?

SelectAnswer
AAll of these choices are correct
BProvided that the frequency is quiet, announce the station call sign and location every 5 minutes
CMove 5 kHz away from the net's frequency and use high power to ask other hams to keep clear of the net frequency
DRemain on frequency without transmitting until asked to do so by the net control station

13. - T3A01

What should you do if another operator reports that your station’s 2 meter signals were strong just a moment ago, but now they are weak or distorted?

SelectAnswer
ATurn on the CTCSS tone
BTry moving a few feet or changing the direction of your antenna if possible, as reflections may be causing multi-path distortion
CAsk the other operator to adjust his squelch control
DChange the batteries in your radio to a different type

14. - T3B05

How does the wavelength of a radio wave relate to its frequency?

SelectAnswer
AThe wavelength gets shorter as the frequency increases
BThere is no relationship between wavelength and frequency
CThe wavelength depends on the bandwidth of the signal
DThe wavelength gets longer as the frequency increases

15. - T3C06

What mode is responsible for allowing over-the-horizon VHF and UHF communications to ranges of approximately 300 miles on a regular basis?

SelectAnswer
ATropospheric ducting
BD layer refraction
CF2 layer refraction
DFaraday rotation

16. - T4A11

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

SelectAnswer
AAt the antenna mount
BAt the battery or engine block ground strap
CThrough the transceiver’s mounting bracket
DTo any metal part of the vehicle

17. - T4B05

Which of the following would reduce ignition interference to a receiver?

SelectAnswer
ATurn on the noise blanker
BChange frequency slightly
CUse the RIT control
DDecrease the squelch setting

18. - T5A02

Electrical power is measured in which of the following units?

SelectAnswer
AWatts
BVolts
CAmperes
DOhms

19. - T5B09

What is the approximate amount of change, measured in decibels (dB), of a power increase from 5 watts to 10 watts?

SelectAnswer
A2 dB
B10 dB
C3 dB
D5 dB

20. - T5C06

What does the abbreviation “RF” refer to?

SelectAnswer
AThe resonant frequency of a tuned circuit
BThe real frequency transmitted as opposed to the apparent frequency
CReflective force in antenna transmission lines
DRadio frequency signals of all types

21. - T5D15

What is the voltage across each of two components in series with a voltage source?

SelectAnswer
AThe same voltage as the source
BTwice the source voltage
CHalf the source voltage
DIt is determined by the type and value of the components

22. - T6A09

What electrical component is used to protect other circuit components from current overloads?

SelectAnswer
AAll of these choices are correct
BFuse
CCapacitor
DInductor

23. - T6B04

Which of the following components can consist of three layers of semiconductor material?

SelectAnswer
ATransistor
BPentagrid converter
CAlternator
DTriode

24. - T6C06

What is component 6 in figure T2?

SelectAnswer
AResistor
BCapacitor
CRegulator IC
DTransistor

25. - T6D09

What is the name of a device that combines several semiconductors and other components into one package?

SelectAnswer
AMulti-pole relay
BTransducer
CTransformer
DIntegrated circuit

26. - T7A08

Which of the following describes combining speech with an RF carrier signal?

SelectAnswer
AImpedance matching
BLow-pass filtering
CModulation
DOscillation

27. - T7B05

How can overload of a non-amateur radio or TV receiver by an amateur signal be reduced or eliminated?

SelectAnswer
ASwitch the transmitter to a narrow-band mode
BBlock the amateur signal with a filter at the antenna input of the affected receiver
CBlock the interfering signal with a filter on the amateur transmitter
DSwitch the transmitter from FM to SSB

28. - T7C10

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

SelectAnswer
AUltraviolet light can increase losses in the cable’s jacket
BUltraviolet resistant jackets prevent harmonic radiation
CUltraviolet and RF signals can mix, causing interference
DUltraviolet light can damage the jacket and allow water to enter the cable

29. - 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
CNot allowing it to warm up properly
DAttempting to measure voltage when using the resistance setting

30. - T8A06

Which sideband is normally used for 10 meter HF, VHF, and UHF single-sideband communications?

SelectAnswer
AInverted sideband
BSuppressed sideband
CUpper sideband
DLower sideband

31. - T8B02

What is the impact of using too much effective radiated power on a satellite uplink?

SelectAnswer
ABlocking access by other users
BPossibility of rebooting the satellite control computer
CPossibility of commanding the satellite to an improper mode
DOverloading the satellite batteries

32. - T8C09

How might you obtain a list of active nodes that use VoIP?

SelectAnswer
AFrom a repeater directory
BBy subscribing to an on line service
CAll of these choices are correct
DFrom on line repeater lists maintained by the local repeater frequency coordinator

33. - T8D07

Which of the following best describes DMR (Digital Mobile Radio)?

SelectAnswer
AAn automatic computer logging technique for hands-off logging when communicating while operating a vehicle
BAn automatic position tracking mode for FM mobiles communicating through repeaters
CA technique for time-multiplexing two digital voice signals on a single 12.5 kHz repeater channel
DA digital technique for transmitting on two repeater inputs simultaneously for automatic error correction

34. - T9A10

In which direction does a half-wave dipole antenna radiate the strongest signal?

SelectAnswer
AEqually in all directions
BBroadside to the antenna
COff the ends of the antenna
DIn the direction of the feed line

35. - T9B10

What is the electrical difference between RG-58 and RG-8 coaxial cable?

SelectAnswer
ARG-58 cable has two shields
BRG-58 cable can handle higher power levels
CRG-8 cable has less loss at a given frequency
DThere is no significant difference between the two types